Add unit tests for calculator

calculator/lib/python3.12/site-packages/coverage/__init__.py

@@ -0,0 +1,38 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""
+Code coverage measurement for Python.
+
+Ned Batchelder
+https://coverage.readthedocs.io
+
+"""
+
+from __future__ import annotations
+
+# mypy's convention is that "import as" names are public from the module.
+# We import names as themselves to indicate that. Pylint sees it as pointless,
+# so disable its warning.
+# pylint: disable=useless-import-alias
+
+from coverage.version import (
+    __version__ as __version__,
+    version_info as version_info,
+)
+
+from coverage.control import (
+    Coverage as Coverage,
+    process_startup as process_startup,
+)
+from coverage.data import CoverageData as CoverageData
+from coverage.exceptions import CoverageException as CoverageException
+from coverage.plugin import (
+    CodeRegion as CodeRegion,
+    CoveragePlugin as CoveragePlugin,
+    FileReporter as FileReporter,
+    FileTracer as FileTracer,
+)
+
+# Backward compatibility.
+coverage = Coverage

calculator/lib/python3.12/site-packages/coverage/__main__.py

@@ -0,0 +1,12 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Coverage.py's main entry point."""
+
+from __future__ import annotations
+
+import sys
+
+from coverage.cmdline import main
+
+sys.exit(main())

calculator/lib/python3.12/site-packages/coverage/annotate.py

@@ -0,0 +1,113 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Source file annotation for coverage.py."""
+
+from __future__ import annotations
+
+import os
+import re
+from typing import TYPE_CHECKING
+
+from coverage.files import flat_rootname
+from coverage.misc import ensure_dir, isolate_module
+from coverage.plugin import FileReporter
+from coverage.report_core import get_analysis_to_report
+from coverage.results import Analysis
+from coverage.types import TMorfs
+
+if TYPE_CHECKING:
+    from coverage import Coverage
+
+os = isolate_module(os)
+
+
+class AnnotateReporter:
+    """Generate annotated source files showing line coverage.
+
+    This reporter creates annotated copies of the measured source files. Each
+    .py file is copied as a .py,cover file, with a left-hand margin annotating
+    each line::
+
+        > def h(x):
+        -     if 0:   #pragma: no cover
+        -         pass
+        >     if x == 1:
+        !         a = 1
+        >     else:
+        >         a = 2
+
+        > h(2)
+
+    Executed lines use ">", lines not executed use "!", lines excluded from
+    consideration use "-".
+
+    """
+
+    def __init__(self, coverage: Coverage) -> None:
+        self.coverage = coverage
+        self.config = self.coverage.config
+        self.directory: str | None = None
+
+    blank_re = re.compile(r"\s*(#|$)")
+    else_re = re.compile(r"\s*else\s*:\s*(#|$)")
+
+    def report(self, morfs: TMorfs, directory: str | None = None) -> None:
+        """Run the report.
+
+        See `coverage.report()` for arguments.
+
+        """
+        self.directory = directory
+        self.coverage.get_data()
+        for fr, analysis in get_analysis_to_report(self.coverage, morfs):
+            self.annotate_file(fr, analysis)
+
+    def annotate_file(self, fr: FileReporter, analysis: Analysis) -> None:
+        """Annotate a single file.
+
+        `fr` is the FileReporter for the file to annotate.
+
+        """
+        statements = sorted(analysis.statements)
+        missing = sorted(analysis.missing)
+        excluded = sorted(analysis.excluded)
+
+        if self.directory:
+            ensure_dir(self.directory)
+            dest_file = os.path.join(self.directory, flat_rootname(fr.relative_filename()))
+            assert dest_file.endswith("_py")
+            dest_file = dest_file[:-3] + ".py"
+        else:
+            dest_file = fr.filename
+        dest_file += ",cover"
+
+        with open(dest_file, "w", encoding="utf-8") as dest:
+            i = j = 0
+            covered = True
+            source = fr.source()
+            for lineno, line in enumerate(source.splitlines(True), start=1):
+                while i < len(statements) and statements[i] < lineno:
+                    i += 1
+                while j < len(missing) and missing[j] < lineno:
+                    j += 1
+                if i < len(statements) and statements[i] == lineno:
+                    covered = j >= len(missing) or missing[j] > lineno
+                if self.blank_re.match(line):
+                    dest.write("  ")
+                elif self.else_re.match(line):
+                    # Special logic for lines containing only "else:".
+                    if j >= len(missing):
+                        dest.write("> ")
+                    elif statements[i] == missing[j]:
+                        dest.write("! ")
+                    else:
+                        dest.write("> ")
+                elif lineno in excluded:
+                    dest.write("- ")
+                elif covered:
+                    dest.write("> ")
+                else:
+                    dest.write("! ")
+
+                dest.write(line)

calculator/lib/python3.12/site-packages/coverage/bytecode.py

@@ -0,0 +1,255 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Bytecode analysis for coverage.py"""
+
+from __future__ import annotations
+
+import collections
+import dis
+from collections.abc import Iterable, Mapping
+from types import CodeType
+from typing import Optional
+
+from coverage.types import TArc, TLineNo, TOffset
+
+
+class ByteParser:
+    """Parse bytecode to understand the structure of code."""
+
+    def __init__(
+        self,
+        *,
+        code: CodeType | None = None,
+        text: str | None = None,
+        filename: str | None = None,
+    ) -> None:
+        if code is None:
+            assert text is not None
+            code = compile(text, filename or "<string>", "exec", dont_inherit=True)
+        self.code = code
+
+    def _child_parsers(self) -> Iterable[ByteParser]:
+        """Iterate over all the code objects nested within this one.
+
+        The iteration includes `self` as its first value.
+
+        We skip code objects named `__annotate__` since they are deferred
+        annotations that usually are never run.  If there are errors in the
+        annotations, they will be caught by type checkers or other tools that
+        use annotations.
+
+        """
+        return (ByteParser(code=c) for c in self.code_objects() if c.co_name != "__annotate__")
+
+    def code_objects(self) -> Iterable[CodeType]:
+        """Iterate over all the code objects in `code`."""
+        stack = [self.code]
+        while stack:
+            # We're going to return the code object on the stack, but first
+            # push its children for later returning.
+            code = stack.pop()
+            for c in code.co_consts:
+                if isinstance(c, CodeType):
+                    stack.append(c)
+            yield code
+
+    def _line_numbers(self) -> Iterable[TLineNo]:
+        """Yield the line numbers possible in this code object.
+
+        Uses co_lines() to produce a sequence: l0, l1, ...
+        """
+        for _, _, line in self.code.co_lines():
+            if line:
+                yield line
+
+    def find_statements(self) -> Iterable[TLineNo]:
+        """Find the statements in `self.code`.
+
+        Produce a sequence of line numbers that start statements.  Recurses
+        into all code objects reachable from `self.code`.
+
+        """
+        for bp in self._child_parsers():
+            # Get all of the lineno information from this code.
+            yield from bp._line_numbers()
+
+
+def bytes_to_lines(code: CodeType) -> dict[TOffset, TLineNo]:
+    """Make a dict mapping byte code offsets to line numbers."""
+    b2l = {}
+    for bstart, bend, lineno in code.co_lines():
+        if lineno is not None:
+            for boffset in range(bstart, bend, 2):
+                b2l[boffset] = lineno
+    return b2l
+
+
+def op_set(*op_names: str) -> set[int]:
+    """Make a set of opcodes from instruction names.
+
+    The names might not exist in this version of Python, skip those if not.
+    """
+    ops = {op for name in op_names if (op := dis.opmap.get(name))}
+    assert ops, f"At least one opcode must exist: {op_names}"
+    return ops
+
+
+# Opcodes that are unconditional jumps elsewhere.
+ALWAYS_JUMPS = op_set(
+    "JUMP_BACKWARD",
+    "JUMP_BACKWARD_NO_INTERRUPT",
+    "JUMP_FORWARD",
+)
+
+# Opcodes that exit from a function.
+RETURNS = op_set(
+    "RETURN_VALUE",
+    "RETURN_GENERATOR",
+)
+
+# Opcodes that do nothing.
+NOPS = op_set(
+    "NOP",
+    "NOT_TAKEN",
+)
+
+
+class InstructionWalker:
+    """Utility to step through trails of instructions.
+
+    We have two reasons to need sequences of instructions from a code object:
+    First, in strict sequence to visit all the instructions in the object.
+    This is `walk(follow_jumps=False)`.  Second, we want to follow jumps to
+    understand how execution will flow: `walk(follow_jumps=True)`.
+    """
+
+    def __init__(self, code: CodeType) -> None:
+        self.code = code
+        self.insts: dict[TOffset, dis.Instruction] = {}
+
+        inst = None
+        for inst in dis.get_instructions(code):
+            self.insts[inst.offset] = inst
+
+        assert inst is not None
+        self.max_offset = inst.offset
+
+    def walk(
+        self, *, start_at: TOffset = 0, follow_jumps: bool = True
+    ) -> Iterable[dis.Instruction]:
+        """
+        Yield instructions starting from `start_at`.  Follow unconditional
+        jumps if `follow_jumps` is true.
+        """
+        seen = set()
+        offset = start_at
+        while offset < self.max_offset + 1:
+            if offset in seen:
+                break
+            seen.add(offset)
+            if inst := self.insts.get(offset):
+                yield inst
+                if follow_jumps and inst.opcode in ALWAYS_JUMPS:
+                    offset = inst.jump_target
+                    continue
+            offset += 2
+
+
+TBranchTrailsOneSource = dict[Optional[TArc], set[TOffset]]
+TBranchTrails = dict[TOffset, TBranchTrailsOneSource]
+
+
+def branch_trails(
+    code: CodeType,
+    multiline_map: Mapping[TLineNo, TLineNo],
+) -> TBranchTrails:
+    """
+    Calculate branch trails for `code`.
+
+    `multiline_map` maps line numbers to the first line number of a
+    multi-line statement.
+
+    Instructions can have a jump_target, where they might jump to next.  Some
+    instructions with a jump_target are unconditional jumps (ALWAYS_JUMPS), so
+    they aren't interesting to us, since they aren't the start of a branch
+    possibility.
+
+    Instructions that might or might not jump somewhere else are branch
+    possibilities.  For each of those, we track a trail of instructions.  These
+    are lists of instruction offsets, the next instructions that can execute.
+    We follow the trail until we get to a new source line.  That gives us the
+    arc from the original instruction's line to the new source line.
+
+    """
+    the_trails: TBranchTrails = collections.defaultdict(lambda: collections.defaultdict(set))
+    iwalker = InstructionWalker(code)
+    for inst in iwalker.walk(follow_jumps=False):
+        if not inst.jump_target:
+            # We only care about instructions with jump targets.
+            continue
+        if inst.opcode in ALWAYS_JUMPS:
+            # We don't care about unconditional jumps.
+            continue
+
+        from_line = inst.line_number
+        if from_line is None:
+            continue
+        from_line = multiline_map.get(from_line, from_line)
+
+        def add_one_branch_trail(
+            trails: TBranchTrailsOneSource,
+            start_at: TOffset,
+        ) -> None:
+            # pylint: disable=cell-var-from-loop
+            inst_offsets: set[TOffset] = set()
+            to_line = None
+            for inst2 in iwalker.walk(start_at=start_at, follow_jumps=True):
+                inst_offsets.add(inst2.offset)
+                l2 = inst2.line_number
+                if l2 is not None:
+                    l2 = multiline_map.get(l2, l2)
+                if l2 and l2 != from_line:
+                    to_line = l2
+                    break
+                elif inst2.jump_target and (inst2.opcode not in ALWAYS_JUMPS):
+                    break
+                elif inst2.opcode in RETURNS:
+                    to_line = -code.co_firstlineno
+                    break
+            if to_line is not None:
+                trails[(from_line, to_line)].update(inst_offsets)
+            else:
+                trails[None] = set()
+
+        # Calculate two trails: one from the next instruction, and one from the
+        # jump_target instruction.
+        trails: TBranchTrailsOneSource = collections.defaultdict(set)
+        add_one_branch_trail(trails, start_at=inst.offset + 2)
+        add_one_branch_trail(trails, start_at=inst.jump_target)
+        the_trails[inst.offset] = trails
+
+        # Sometimes we get BRANCH_RIGHT or BRANCH_LEFT events from instructions
+        # other than the original jump possibility instruction.  Register each
+        # trail under all of their offsets so we can pick up in the middle of a
+        # trail if need be.
+        for arc, offsets in trails.items():
+            for offset in offsets:
+                the_trails[offset][arc].update(offsets)
+
+    return the_trails
+
+
+def always_jumps(code: CodeType) -> dict[TOffset, TOffset]:
+    """Make a map of unconditional bytecodes jumping to others.
+
+    Only include bytecodes that do no work and go to another bytecode.
+    """
+    jumps = {}
+    iwalker = InstructionWalker(code)
+    for inst in iwalker.walk(follow_jumps=False):
+        if inst.opcode in ALWAYS_JUMPS:
+            jumps[inst.offset] = inst.jump_target
+        elif inst.opcode in NOPS:
+            jumps[inst.offset] = inst.offset + 2
+    return jumps

calculator/lib/python3.12/site-packages/coverage/collector.py

@@ -0,0 +1,501 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Raw data collector for coverage.py."""
+
+from __future__ import annotations
+
+import contextlib
+import functools
+import os
+import sys
+from collections.abc import Callable, Collection, Mapping
+from types import FrameType
+from typing import Any, TypeVar, cast
+
+from coverage import env
+from coverage.core import Core
+from coverage.data import CoverageData
+from coverage.debug import short_stack
+from coverage.exceptions import ConfigError
+from coverage.misc import human_sorted_items, isolate_module
+from coverage.plugin import CoveragePlugin
+from coverage.types import (
+    TArc,
+    TCheckIncludeFn,
+    TFileDisposition,
+    Tracer,
+    TShouldStartContextFn,
+    TShouldTraceFn,
+    TTraceData,
+    TTraceFn,
+    TWarnFn,
+)
+
+os = isolate_module(os)
+
+
+T = TypeVar("T")
+
+
+class Collector:
+    """Collects trace data.
+
+    Creates a Tracer object for each thread, since they track stack
+    information.  Each Tracer points to the same shared data, contributing
+    traced data points.
+
+    When the Collector is started, it creates a Tracer for the current thread,
+    and installs a function to create Tracers for each new thread started.
+    When the Collector is stopped, all active Tracers are stopped.
+
+    Threads started while the Collector is stopped will never have Tracers
+    associated with them.
+
+    """
+
+    # The stack of active Collectors.  Collectors are added here when started,
+    # and popped when stopped.  Collectors on the stack are paused when not
+    # the top, and resumed when they become the top again.
+    _collectors: list[Collector] = []
+
+    def __init__(
+        self,
+        core: Core,
+        should_trace: TShouldTraceFn,
+        check_include: TCheckIncludeFn,
+        should_start_context: TShouldStartContextFn | None,
+        file_mapper: Callable[[str], str],
+        branch: bool,
+        warn: TWarnFn,
+        concurrency: list[str],
+    ) -> None:
+        """Create a collector.
+
+        `should_trace` is a function, taking a file name and a frame, and
+        returning a `coverage.FileDisposition object`.
+
+        `check_include` is a function taking a file name and a frame. It returns
+        a boolean: True if the file should be traced, False if not.
+
+        `should_start_context` is a function taking a frame, and returning a
+        string. If the frame should be the start of a new context, the string
+        is the new context. If the frame should not be the start of a new
+        context, return None.
+
+        `file_mapper` is a function taking a filename, and returning a Unicode
+        filename.  The result is the name that will be recorded in the data
+        file.
+
+        If `branch` is true, then branches will be measured.  This involves
+        collecting data on which statements followed each other (arcs).  Use
+        `get_arc_data` to get the arc data.
+
+        `warn` is a warning function, taking a single string message argument
+        and an optional slug argument which will be a string or None, to be
+        used if a warning needs to be issued.
+
+        `concurrency` is a list of strings indicating the concurrency libraries
+        in use.  Valid values are "greenlet", "eventlet", "gevent", or "thread"
+        (the default).  "thread" can be combined with one of the other three.
+        Other values are ignored.
+
+        """
+        self.core = core
+        self.should_trace = should_trace
+        self.check_include = check_include
+        self.should_start_context = should_start_context
+        self.file_mapper = file_mapper
+        self.branch = branch
+        self.warn = warn
+        assert isinstance(concurrency, list), f"Expected a list: {concurrency!r}"
+
+        self.pid = os.getpid()
+
+        self.covdata: CoverageData
+        self.threading = None
+        self.static_context: str | None = None
+
+        self.origin = short_stack()
+
+        self.concur_id_func = None
+
+        do_threading = False
+
+        tried = "nothing"  # to satisfy pylint
+        try:
+            if "greenlet" in concurrency:
+                tried = "greenlet"
+                import greenlet
+
+                self.concur_id_func = greenlet.getcurrent
+            elif "eventlet" in concurrency:
+                tried = "eventlet"
+                import eventlet.greenthread
+
+                self.concur_id_func = eventlet.greenthread.getcurrent
+            elif "gevent" in concurrency:
+                tried = "gevent"
+                import gevent
+
+                self.concur_id_func = gevent.getcurrent
+
+            if "thread" in concurrency:
+                do_threading = True
+        except ImportError as ex:
+            msg = f"Couldn't trace with concurrency={tried}, the module isn't installed."
+            raise ConfigError(msg) from ex
+
+        if self.concur_id_func and not hasattr(core.tracer_class, "concur_id_func"):
+            raise ConfigError(
+                "Can't support concurrency={} with {}, only threads are supported.".format(
+                    tried,
+                    self.tracer_name(),
+                ),
+            )
+
+        if do_threading or not concurrency:
+            # It's important to import threading only if we need it.  If
+            # it's imported early, and the program being measured uses
+            # gevent, then gevent's monkey-patching won't work properly.
+            import threading
+
+            self.threading = threading
+
+        self.reset()
+
+    def __repr__(self) -> str:
+        return f"<Collector at {id(self):#x}: {self.tracer_name()}>"
+
+    def use_data(self, covdata: CoverageData, context: str | None) -> None:
+        """Use `covdata` for recording data."""
+        self.covdata = covdata
+        self.static_context = context
+        self.covdata.set_context(self.static_context)
+
+    def tracer_name(self) -> str:
+        """Return the class name of the tracer we're using."""
+        return self.core.tracer_class.__name__
+
+    def _clear_data(self) -> None:
+        """Clear out existing data, but stay ready for more collection."""
+        # We used to use self.data.clear(), but that would remove filename
+        # keys and data values that were still in use higher up the stack
+        # when we are called as part of switch_context.
+        with self.data_lock or contextlib.nullcontext():
+            for d in self.data.values():
+                d.clear()
+
+        for tracer in self.tracers:
+            tracer.reset_activity()
+
+    def reset(self) -> None:
+        """Clear collected data, and prepare to collect more."""
+        self.data_lock = self.threading.Lock() if self.threading else None
+
+        # The trace data we are collecting.
+        self.data: TTraceData = {}
+
+        # A dictionary mapping file names to file tracer plugin names that will
+        # handle them.
+        self.file_tracers: dict[str, str] = {}
+
+        self.disabled_plugins: set[str] = set()
+
+        # The .should_trace_cache attribute is a cache from file names to
+        # coverage.FileDisposition objects, or None.  When a file is first
+        # considered for tracing, a FileDisposition is obtained from
+        # Coverage.should_trace.  Its .trace attribute indicates whether the
+        # file should be traced or not.  If it should be, a plugin with dynamic
+        # file names can decide not to trace it based on the dynamic file name
+        # being excluded by the inclusion rules, in which case the
+        # FileDisposition will be replaced by None in the cache.
+        if env.PYPY:
+            import __pypy__  # pylint: disable=import-error
+
+            # Alex Gaynor said:
+            # should_trace_cache is a strictly growing key: once a key is in
+            # it, it never changes.  Further, the keys used to access it are
+            # generally constant, given sufficient context. That is to say, at
+            # any given point _trace() is called, pypy is able to know the key.
+            # This is because the key is determined by the physical source code
+            # line, and that's invariant with the call site.
+            #
+            # This property of a dict with immutable keys, combined with
+            # call-site-constant keys is a match for PyPy's module dict,
+            # which is optimized for such workloads.
+            #
+            # This gives a 20% benefit on the workload described at
+            # https://bitbucket.org/pypy/pypy/issue/1871/10x-slower-than-cpython-under-coverage
+            self.should_trace_cache = __pypy__.newdict("module")
+        else:
+            self.should_trace_cache = {}
+
+        # Our active Tracers.
+        self.tracers: list[Tracer] = []
+
+        self._clear_data()
+
+    def lock_data(self) -> None:
+        """Lock self.data_lock, for use by tracers."""
+        if self.data_lock is not None:
+            self.data_lock.acquire()
+
+    def unlock_data(self) -> None:
+        """Unlock self.data_lock, for use by tracers."""
+        if self.data_lock is not None:
+            self.data_lock.release()
+
+    def _start_tracer(self) -> TTraceFn | None:
+        """Start a new Tracer object, and store it in self.tracers."""
+        tracer = self.core.tracer_class(**self.core.tracer_kwargs)
+        tracer.data = self.data
+        tracer.lock_data = self.lock_data
+        tracer.unlock_data = self.unlock_data
+        tracer.trace_arcs = self.branch
+        tracer.should_trace = self.should_trace
+        tracer.should_trace_cache = self.should_trace_cache
+        tracer.warn = self.warn
+
+        if hasattr(tracer, "concur_id_func"):
+            tracer.concur_id_func = self.concur_id_func
+        if hasattr(tracer, "file_tracers"):
+            tracer.file_tracers = self.file_tracers
+        if hasattr(tracer, "threading"):
+            tracer.threading = self.threading
+        if hasattr(tracer, "check_include"):
+            tracer.check_include = self.check_include
+        if hasattr(tracer, "should_start_context"):
+            tracer.should_start_context = self.should_start_context
+        if hasattr(tracer, "switch_context"):
+            tracer.switch_context = self.switch_context
+        if hasattr(tracer, "disable_plugin"):
+            tracer.disable_plugin = self.disable_plugin
+
+        fn = tracer.start()
+        self.tracers.append(tracer)
+
+        return fn
+
+    # The trace function has to be set individually on each thread before
+    # execution begins.  Ironically, the only support the threading module has
+    # for running code before the thread main is the tracing function.  So we
+    # install this as a trace function, and the first time it's called, it does
+    # the real trace installation.
+    #
+    # PYVERSIONS
+    # New in 3.12: threading.settrace_all_threads: https://github.com/python/cpython/pull/96681
+
+    def _installation_trace(self, frame: FrameType, event: str, arg: Any) -> TTraceFn | None:
+        """Called on new threads, installs the real tracer."""
+        # Remove ourselves as the trace function.
+        sys.settrace(None)
+        # Install the real tracer.
+        fn: TTraceFn | None = self._start_tracer()
+        # Invoke the real trace function with the current event, to be sure
+        # not to lose an event.
+        if fn:
+            fn = fn(frame, event, arg)
+        # Return the new trace function to continue tracing in this scope.
+        return fn
+
+    def start(self) -> None:
+        """Start collecting trace information."""
+        # We may be a new collector in a forked process.  The old process'
+        # collectors will be in self._collectors, but they won't be usable.
+        # Find them and discard them.
+        keep_collectors = []
+        for c in self._collectors:
+            if c.pid == self.pid:
+                keep_collectors.append(c)
+            else:
+                c.post_fork()
+        self._collectors[:] = keep_collectors
+
+        if self._collectors:
+            self._collectors[-1].pause()
+
+        self.tracers = []
+
+        try:
+            # Install the tracer on this thread.
+            self._start_tracer()
+        except:
+            if self._collectors:
+                self._collectors[-1].resume()
+            raise
+
+        # If _start_tracer succeeded, then we add ourselves to the global
+        # stack of collectors.
+        self._collectors.append(self)
+
+        # Install our installation tracer in threading, to jump-start other
+        # threads.
+        if self.core.systrace and self.threading:
+            self.threading.settrace(self._installation_trace)
+
+    def stop(self) -> None:
+        """Stop collecting trace information."""
+        assert self._collectors
+        if self._collectors[-1] is not self:
+            print("self._collectors:")
+            for c in self._collectors:
+                print(f"  {c!r}\n{c.origin}")
+        assert self._collectors[-1] is self, (
+            f"Expected current collector to be {self!r}, but it's {self._collectors[-1]!r}"
+        )
+
+        self.pause()
+
+        # Remove this Collector from the stack, and resume the one underneath (if any).
+        self._collectors.pop()
+        if self._collectors:
+            self._collectors[-1].resume()
+
+    def pause(self) -> None:
+        """Pause tracing, but be prepared to `resume`."""
+        for tracer in self.tracers:
+            tracer.stop()
+            stats = tracer.get_stats()
+            if stats:
+                print(f"\nCoverage.py {tracer.__class__.__name__} stats:")
+                for k, v in human_sorted_items(stats.items()):
+                    print(f"{k:>20}: {v}")
+        if self.threading:
+            self.threading.settrace(None)
+
+    def resume(self) -> None:
+        """Resume tracing after a `pause`."""
+        for tracer in self.tracers:
+            tracer.start()
+        if self.core.systrace:
+            if self.threading:
+                self.threading.settrace(self._installation_trace)
+            else:
+                self._start_tracer()
+
+    def post_fork(self) -> None:
+        """After a fork, tracers might need to adjust."""
+        for tracer in self.tracers:
+            if hasattr(tracer, "post_fork"):
+                tracer.post_fork()
+
+    def _activity(self) -> bool:
+        """Has any activity been traced?
+
+        Returns a boolean, True if any trace function was invoked.
+
+        """
+        return any(tracer.activity() for tracer in self.tracers)
+
+    def switch_context(self, new_context: str | None) -> None:
+        """Switch to a new dynamic context."""
+        context: str | None
+        self.flush_data()
+        if self.static_context:
+            context = self.static_context
+            if new_context:
+                context += "|" + new_context
+        else:
+            context = new_context
+        self.covdata.set_context(context)
+
+    def disable_plugin(self, disposition: TFileDisposition) -> None:
+        """Disable the plugin mentioned in `disposition`."""
+        file_tracer = disposition.file_tracer
+        assert file_tracer is not None
+        plugin = file_tracer._coverage_plugin
+        plugin_name = plugin._coverage_plugin_name
+        self.warn(f"Disabling plug-in {plugin_name!r} due to previous exception")
+        plugin._coverage_enabled = False
+        disposition.trace = False
+
+    @functools.cache  # pylint: disable=method-cache-max-size-none
+    def cached_mapped_file(self, filename: str) -> str:
+        """A locally cached version of file names mapped through file_mapper."""
+        return self.file_mapper(filename)
+
+    def mapped_file_dict(self, d: Mapping[str, T]) -> dict[str, T]:
+        """Return a dict like d, but with keys modified by file_mapper."""
+        # The call to list(items()) ensures that the GIL protects the dictionary
+        # iterator against concurrent modifications by tracers running
+        # in other threads. We try three times in case of concurrent
+        # access, hoping to get a clean copy.
+        runtime_err = None
+        for _ in range(3):  # pragma: part covered
+            try:
+                items = list(d.items())
+            except RuntimeError as ex:  # pragma: cant happen
+                runtime_err = ex
+            else:
+                break
+        else:  # pragma: cant happen
+            assert isinstance(runtime_err, Exception)
+            raise runtime_err
+
+        return {self.cached_mapped_file(k): v for k, v in items if v}
+
+    def plugin_was_disabled(self, plugin: CoveragePlugin) -> None:
+        """Record that `plugin` was disabled during the run."""
+        self.disabled_plugins.add(plugin._coverage_plugin_name)
+
+    def flush_data(self) -> bool:
+        """Save the collected data to our associated `CoverageData`.
+
+        Data may have also been saved along the way. This forces the
+        last of the data to be saved.
+
+        Returns True if there was data to save, False if not.
+        """
+        if not self._activity():
+            return False
+
+        # dict.copy() and set.copy() are atomic in CPython (the GIL is
+        # held for the duration of the C-level copy), so we get clean
+        # snapshots of the dict and each per-file set even while tracers
+        # in other threads continue to add data. Without these copies,
+        # add_arcs() and add_lines() iterate the live sets and can fail
+        # with "RuntimeError: Set changed size during iteration" when a
+        # tracer thread mutates them mid-iteration.
+        if self.branch:
+            arc_data: dict[str, Collection[TArc]]
+            if self.core.packed_arcs:
+                # Unpack the line number pairs packed into integers.  See
+                # tracer.c:CTracer_record_pair for the C code that creates
+                # these packed ints.
+                arc_data = {}
+                packed_data = cast(dict[str, set[int]], self.data)
+
+                for fname, packeds in packed_data.copy().items():
+                    tuples = []
+                    for packed in packeds.copy():
+                        l1 = packed & 0xFFFFFFF
+                        l2 = (packed & (0xFFFFFFF << 28)) >> 28
+                        if packed & (1 << 56):
+                            l1 *= -1
+                        if packed & (1 << 57):
+                            l2 *= -1
+                        tuples.append((l1, l2))
+                    arc_data[fname] = tuples
+            else:
+                arc_data = {
+                    fname: arcs.copy()
+                    for fname, arcs in cast(dict[str, set[TArc]], self.data).copy().items()
+                }
+            self.covdata.add_arcs(self.mapped_file_dict(arc_data))
+        else:
+            line_data = {
+                fname: linenos.copy()
+                for fname, linenos in cast(dict[str, set[int]], self.data).copy().items()
+            }
+            self.covdata.add_lines(self.mapped_file_dict(line_data))
+
+        file_tracers = {
+            self.cached_mapped_file(k): v
+            for k, v in self.file_tracers.items()
+            if v not in self.disabled_plugins
+        }
+        self.covdata.add_file_tracers(file_tracers)
+
+        self._clear_data()
+        return True

calculator/lib/python3.12/site-packages/coverage/config.py

@@ -0,0 +1,732 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Config file for coverage.py"""
+
+from __future__ import annotations
+
+import base64
+import collections
+import configparser
+import copy
+import json
+import os
+import os.path
+import re
+from collections.abc import Callable, Iterable, Mapping
+from typing import Any, Final
+
+from coverage.exceptions import ConfigError
+from coverage.misc import human_sorted_items, isolate_module, substitute_variables
+from coverage.tomlconfig import TomlConfigParser, TomlDecodeError
+from coverage.types import (
+    TConfigSectionIn,
+    TConfigSectionOut,
+    TConfigurable,
+    TConfigValueIn,
+    TConfigValueOut,
+    TPluginConfig,
+)
+
+os = isolate_module(os)
+
+
+class HandyConfigParser(configparser.ConfigParser):
+    """Our specialization of ConfigParser."""
+
+    def __init__(self, our_file: bool) -> None:
+        """Create the HandyConfigParser.
+
+        `our_file` is True if this config file is specifically for coverage,
+        False if we are examining another config file (tox.ini, setup.cfg)
+        for possible settings.
+        """
+
+        super().__init__(interpolation=None)
+        self.section_prefixes = ["coverage:"]
+        if our_file:
+            self.section_prefixes.append("")
+
+    def read(  # type: ignore[override]
+        self,
+        filenames: Iterable[str],
+        encoding_unused: str | None = None,
+    ) -> list[str]:
+        """Read a file name as UTF-8 configuration data."""
+        return super().read(filenames, encoding="utf-8")
+
+    def real_section(self, section: str) -> str | None:
+        """Get the actual name of a section."""
+        for section_prefix in self.section_prefixes:
+            real_section = section_prefix + section
+            has = super().has_section(real_section)
+            if has:
+                return real_section
+        return None
+
+    def has_option(self, section: str, option: str) -> bool:  # type: ignore[override]
+        real_section = self.real_section(section)
+        if real_section is not None:
+            return super().has_option(real_section, option)
+        return False
+
+    def has_section(self, section: str) -> bool:  # type: ignore[override]
+        return bool(self.real_section(section))
+
+    def options(self, section: str) -> list[str]:  # type: ignore[override]
+        real_section = self.real_section(section)
+        if real_section is not None:
+            return super().options(real_section)
+        raise ConfigError(f"No section: {section!r}")
+
+    def get_section(self, section: str) -> TConfigSectionOut:
+        """Get the contents of a section, as a dictionary."""
+        d: dict[str, TConfigValueOut] = {}
+        for opt in self.options(section):
+            d[opt] = self.get(section, opt)
+        return d
+
+    def get(self, section: str, option: str, *args: Any, **kwargs: Any) -> str:  # type: ignore
+        """Get a value, replacing environment variables also.
+
+        The arguments are the same as `ConfigParser.get`, but in the found
+        value, ``$WORD`` or ``${WORD}`` are replaced by the value of the
+        environment variable ``WORD``.
+
+        Returns the finished value.
+
+        """
+        for section_prefix in self.section_prefixes:
+            real_section = section_prefix + section
+            if super().has_option(real_section, option):
+                break
+        else:
+            raise ConfigError(f"No option {option!r} in section: {section!r}")
+
+        v: str = super().get(real_section, option, *args, **kwargs)
+        v = substitute_variables(v, os.environ)
+        return v
+
+    def getfile(self, section: str, option: str) -> str:
+        """Fix up a file path setting."""
+        path = self.get(section, option)
+        return process_file_value(path)
+
+    def getlist(self, section: str, option: str) -> list[str]:
+        """Read a list of strings.
+
+        The value of `section` and `option` is treated as a comma- and newline-
+        separated list of strings.  Each value is stripped of white space.
+
+        Returns the list of strings.
+
+        """
+        value_list = self.get(section, option)
+        values = []
+        for value_line in value_list.split("\n"):
+            for value in value_line.split(","):
+                value = value.strip()
+                if value:
+                    values.append(value)
+        return values
+
+    def getregexlist(self, section: str, option: str) -> list[str]:
+        """Read a list of full-line regexes.
+
+        The value of `section` and `option` is treated as a newline-separated
+        list of regexes.  Each value is stripped of white space.
+
+        Returns the list of strings.
+
+        """
+        line_list = self.get(section, option)
+        return process_regexlist(section, option, line_list.splitlines())
+
+
+TConfigParser = HandyConfigParser | TomlConfigParser
+
+
+# The default line exclusion regexes.
+DEFAULT_EXCLUDE = [
+    r"#\s*(pragma|PRAGMA)[:\s]?\s*(no|NO)\s*(cover|COVER)",
+    r"^\s*(((async )?def .*?)?\)(\s*->.*?)?:\s*)?\.\.\.\s*(#|$)",
+    r"if (typing\.)?TYPE_CHECKING:",
+]
+
+# The default partial branch regexes, to be modified by the user.
+DEFAULT_PARTIAL = [
+    r"#\s*(pragma|PRAGMA)[:\s]?\s*(no|NO)\s*(branch|BRANCH)",
+]
+
+# The default partial branch regexes, based on Python semantics.
+# These are any Python branching constructs that can't actually execute all
+# their branches.
+DEFAULT_PARTIAL_ALWAYS = [
+    "while (True|1|False|0):",
+    "if (True|1|False|0):",
+]
+
+
+class CoverageConfig(TConfigurable, TPluginConfig):
+    """Coverage.py configuration.
+
+    The attributes of this class are the various settings that control the
+    operation of coverage.py.
+
+    """
+
+    # pylint: disable=too-many-instance-attributes
+
+    def __init__(self) -> None:
+        """Initialize the configuration attributes to their defaults."""
+        # Metadata about the config.
+        # We tried to read these config files.
+        self.config_files_attempted: list[str] = []
+        # We did read these config files, but maybe didn't find any content for us.
+        self.config_files_read: list[str] = []
+        # The file that gave us our configuration.
+        self.config_file: str | None = None
+        self._config_contents: bytes | None = None
+
+        # Defaults for [run] and [report]
+        self._include = None
+        self._omit = None
+
+        # Defaults for [run]
+        self.branch = False
+        self.command_line: str | None = None
+        self.concurrency: list[str] = []
+        self.context: str | None = None
+        self.core: str | None = None
+        self.cover_pylib = False
+        self.data_file = ".coverage"
+        self.debug: list[str] = []
+        self.debug_file: str | None = None
+        self.disable_warnings: list[str] = []
+        self.dynamic_context: str | None = None
+        self.parallel = False
+        self.patch: list[str] = []
+        self.plugins: list[str] = []
+        self.relative_files = False
+        self.run_include: list[str] = []
+        self.run_omit: list[str] = []
+        self.sigterm = False
+        self.source: list[str] | None = None
+        self.source_pkgs: list[str] = []
+        self.source_dirs: list[str] = []
+        self.timid = False
+        self._crash: str | None = None
+
+        # Defaults for [report]
+        self.exclude_list = DEFAULT_EXCLUDE[:]
+        self.exclude_also: list[str] = []
+        self.fail_under = 0.0
+        self.format: str | None = None
+        self.ignore_errors = False
+        self.include_namespace_packages = False
+        self.report_include: list[str] | None = None
+        self.report_omit: list[str] | None = None
+        self.partial_always_list = DEFAULT_PARTIAL_ALWAYS[:]
+        self.partial_list = DEFAULT_PARTIAL[:]
+        self.partial_also: list[str] = []
+        self.precision = 0
+        self.report_contexts: list[str] | None = None
+        self.show_missing = False
+        self.skip_covered = False
+        self.skip_empty = False
+        self.sort: str | None = None
+
+        # Defaults for [html]
+        self.extra_css: str | None = None
+        self.html_dir = "htmlcov"
+        self.html_skip_covered: bool | None = None
+        self.html_skip_empty: bool | None = None
+        self.html_title = "Coverage report"
+        self.show_contexts = False
+
+        # Defaults for [xml]
+        self.xml_output = "coverage.xml"
+        self.xml_package_depth = 99
+
+        # Defaults for [json]
+        self.json_output = "coverage.json"
+        self.json_pretty_print = False
+        self.json_show_contexts = False
+
+        # Defaults for [lcov]
+        self.lcov_output = "coverage.lcov"
+        self.lcov_line_checksums = False
+
+        # Defaults for [paths]
+        self.paths: dict[str, list[str]] = {}
+
+        # Options for plugins
+        self.plugin_options: dict[str, TConfigSectionOut] = {}
+
+    MUST_BE_LIST = {
+        "debug",
+        "concurrency",
+        "plugins",
+        "report_omit",
+        "report_include",
+        "run_omit",
+        "run_include",
+        "patch",
+    }
+
+    # File paths to make absolute during serialization.
+    # The pairs are (config_key, must_exist).
+    SERIALIZE_ABSPATH = {
+        ("data_file", False),
+        ("debug_file", False),
+        # `source` can be directories or modules, so don't abspath it if it
+        # doesn't exist.
+        ("source", True),
+        ("source_dirs", False),
+    }
+
+    def from_args(self, **kwargs: TConfigValueIn) -> None:
+        """Read config values from `kwargs`."""
+        for k, v in kwargs.items():
+            if v is not None:
+                if k in self.MUST_BE_LIST and isinstance(v, str):
+                    v = [v]
+                setattr(self, k, v)
+
+    def from_file(self, filename: str, warn: Callable[[str], None], our_file: bool) -> bool:
+        """Read configuration from a .rc file.
+
+        `filename` is a file name to read.
+
+        `our_file` is True if this config file is specifically for coverage,
+        False if we are examining another config file (tox.ini, setup.cfg)
+        for possible settings.
+
+        Returns True or False, whether the file could be read, and it had some
+        coverage.py settings in it.
+
+        """
+        _, ext = os.path.splitext(filename)
+        cp: TConfigParser
+        if ext == ".toml":
+            cp = TomlConfigParser(our_file)
+        else:
+            cp = HandyConfigParser(our_file)
+
+        self.config_files_attempted.append(os.path.abspath(filename))
+
+        try:
+            files_read = cp.read(filename)
+        except (configparser.Error, TomlDecodeError) as err:
+            raise ConfigError(f"Couldn't read config file {filename}: {err}") from err
+        if not files_read:
+            return False
+
+        self.config_files_read.extend(map(os.path.abspath, files_read))
+
+        any_set = False
+        try:
+            for option_spec in self.CONFIG_FILE_OPTIONS:
+                was_set = self._set_attr_from_config_option(cp, *option_spec)
+                if was_set:
+                    any_set = True
+        except ValueError as err:
+            raise ConfigError(f"Couldn't read config file {filename}: {err}") from err
+
+        # Check that there are no unrecognized options.
+        all_options = collections.defaultdict(set)
+        for option_spec in self.CONFIG_FILE_OPTIONS:
+            section, option = option_spec[1].split(":")
+            all_options[section].add(option)
+
+        for section, options in all_options.items():
+            real_section = cp.real_section(section)
+            if real_section:
+                for unknown in set(cp.options(section)) - options:
+                    warn(
+                        "Unrecognized option '[{}] {}=' in config file {}".format(
+                            real_section,
+                            unknown,
+                            filename,
+                        ),
+                    )
+
+        # [paths] is special
+        if cp.has_section("paths"):
+            for option in cp.options("paths"):
+                self.paths[option] = cp.getlist("paths", option)
+                any_set = True
+
+        # plugins can have options
+        for plugin in self.plugins:
+            if cp.has_section(plugin):
+                self.plugin_options[plugin] = cp.get_section(plugin)
+                any_set = True
+
+        # Was this file used as a config file? If it's specifically our file,
+        # then it was used.  If we're piggybacking on someone else's file,
+        # then it was only used if we found some settings in it.
+        if our_file:
+            used = True
+        else:
+            used = any_set
+
+        if used:
+            self.config_file = os.path.abspath(filename)
+            with open(filename, "rb") as f:
+                self._config_contents = f.read()
+
+        return used
+
+    def copy(self) -> CoverageConfig:
+        """Return a copy of the configuration."""
+        return copy.deepcopy(self)
+
+    CONCURRENCY_CHOICES: Final[set[str]] = {
+        "thread",
+        "gevent",
+        "greenlet",
+        "eventlet",
+        "multiprocessing",
+    }
+
+    # Mutually exclusive concurrency settings.
+    LIGHT_THREADS = {"greenlet", "eventlet", "gevent"}
+
+    CONFIG_FILE_OPTIONS = [
+        # These are *args for _set_attr_from_config_option:
+        #   (attr, where, type_="")
+        #
+        #   attr is the attribute to set on the CoverageConfig object.
+        #   where is the section:name to read from the configuration file.
+        #   type_ is the optional type to apply, by using .getTYPE to read the
+        #       configuration value from the file.
+        #
+        # [run]
+        ("branch", "run:branch", "boolean"),
+        ("command_line", "run:command_line"),
+        ("concurrency", "run:concurrency", "list"),
+        ("context", "run:context"),
+        ("core", "run:core"),
+        ("cover_pylib", "run:cover_pylib", "boolean"),
+        ("data_file", "run:data_file", "file"),
+        ("debug", "run:debug", "list"),
+        ("debug_file", "run:debug_file", "file"),
+        ("disable_warnings", "run:disable_warnings", "list"),
+        ("dynamic_context", "run:dynamic_context"),
+        ("parallel", "run:parallel", "boolean"),
+        ("patch", "run:patch", "list"),
+        ("plugins", "run:plugins", "list"),
+        ("relative_files", "run:relative_files", "boolean"),
+        ("run_include", "run:include", "list"),
+        ("run_omit", "run:omit", "list"),
+        ("sigterm", "run:sigterm", "boolean"),
+        ("source", "run:source", "list"),
+        ("source_pkgs", "run:source_pkgs", "list"),
+        ("source_dirs", "run:source_dirs", "list"),
+        ("timid", "run:timid", "boolean"),
+        ("_crash", "run:_crash"),
+        #
+        # [report]
+        ("exclude_list", "report:exclude_lines", "regexlist"),
+        ("exclude_also", "report:exclude_also", "regexlist"),
+        ("fail_under", "report:fail_under", "float"),
+        ("format", "report:format"),
+        ("ignore_errors", "report:ignore_errors", "boolean"),
+        ("include_namespace_packages", "report:include_namespace_packages", "boolean"),
+        ("partial_always_list", "report:partial_branches_always", "regexlist"),
+        ("partial_list", "report:partial_branches", "regexlist"),
+        ("partial_also", "report:partial_also", "regexlist"),
+        ("precision", "report:precision", "int"),
+        ("report_contexts", "report:contexts", "list"),
+        ("report_include", "report:include", "list"),
+        ("report_omit", "report:omit", "list"),
+        ("show_missing", "report:show_missing", "boolean"),
+        ("skip_covered", "report:skip_covered", "boolean"),
+        ("skip_empty", "report:skip_empty", "boolean"),
+        ("sort", "report:sort"),
+        #
+        # [html]
+        ("extra_css", "html:extra_css"),
+        ("html_dir", "html:directory", "file"),
+        ("html_skip_covered", "html:skip_covered", "boolean"),
+        ("html_skip_empty", "html:skip_empty", "boolean"),
+        ("html_title", "html:title"),
+        ("show_contexts", "html:show_contexts", "boolean"),
+        #
+        # [xml]
+        ("xml_output", "xml:output", "file"),
+        ("xml_package_depth", "xml:package_depth", "int"),
+        #
+        # [json]
+        ("json_output", "json:output", "file"),
+        ("json_pretty_print", "json:pretty_print", "boolean"),
+        ("json_show_contexts", "json:show_contexts", "boolean"),
+        #
+        # [lcov]
+        ("lcov_output", "lcov:output", "file"),
+        ("lcov_line_checksums", "lcov:line_checksums", "boolean"),
+    ]
+
+    def _set_attr_from_config_option(
+        self,
+        cp: TConfigParser,
+        attr: str,
+        where: str,
+        type_: str = "",
+    ) -> bool:
+        """Set an attribute on self if it exists in the ConfigParser.
+
+        Returns True if the attribute was set.
+
+        """
+        section, option = where.split(":")
+        if cp.has_option(section, option):
+            method = getattr(cp, f"get{type_}")
+            setattr(self, attr, method(section, option))
+            return True
+        return False
+
+    def get_plugin_options(self, plugin: str) -> TConfigSectionOut:
+        """Get a dictionary of options for the plugin named `plugin`."""
+        return self.plugin_options.get(plugin, {})
+
+    def set_option(self, option_name: str, value: TConfigValueIn | TConfigSectionIn) -> None:
+        """Set an option in the configuration.
+
+        `option_name` is a colon-separated string indicating the section and
+        option name.  For example, the ``branch`` option in the ``[run]``
+        section of the config file would be indicated with `"run:branch"`.
+
+        `value` is the new value for the option.
+
+        """
+        # Special-cased options.
+        if option_name == "paths":
+            # This is ugly, but type-checks and ensures the values are close
+            # to right.
+            self.paths = {}
+            assert isinstance(value, Mapping)
+            for k, v in value.items():
+                assert isinstance(v, Iterable)
+                self.paths[k] = list(v)
+            return
+
+        # Check all the hard-coded options.
+        for option_spec in self.CONFIG_FILE_OPTIONS:
+            attr, where = option_spec[:2]
+            if where == option_name:
+                setattr(self, attr, value)
+                return
+
+        # See if it's a plugin option.
+        plugin_name, _, key = option_name.partition(":")
+        if key and plugin_name in self.plugins:
+            self.plugin_options.setdefault(plugin_name, {})[key] = value  # type: ignore[index]
+            return
+
+        # If we get here, we didn't find the option.
+        raise ConfigError(f"No such option: {option_name!r}")
+
+    def get_option(self, option_name: str) -> TConfigValueOut | None:
+        """Get an option from the configuration.
+
+        `option_name` is a colon-separated string indicating the section and
+        option name.  For example, the ``branch`` option in the ``[run]``
+        section of the config file would be indicated with `"run:branch"`.
+
+        Returns the value of the option.
+
+        """
+        # Special-cased options.
+        if option_name == "paths":
+            return self.paths
+
+        # Check all the hard-coded options.
+        for option_spec in self.CONFIG_FILE_OPTIONS:
+            attr, where = option_spec[:2]
+            if where == option_name:
+                return getattr(self, attr)  # type: ignore[no-any-return]
+
+        # See if it's a plugin option.
+        plugin_name, _, key = option_name.partition(":")
+        if key and plugin_name in self.plugins:
+            return self.plugin_options.get(plugin_name, {}).get(key)
+
+        # If we get here, we didn't find the option.
+        raise ConfigError(f"No such option: {option_name!r}")
+
+    def post_process(self) -> None:
+        """Make final adjustments to settings to make them usable."""
+        self.paths = {k: [process_file_value(f) for f in v] for k, v in self.paths.items()}
+
+        self.exclude_list += self.exclude_also
+        self.partial_list += self.partial_also
+
+        if "subprocess" in self.patch:
+            self.parallel = True
+
+        # We can handle a few concurrency options here, but only one at a time.
+        concurrencies = set(self.concurrency)
+        unknown = concurrencies - self.CONCURRENCY_CHOICES
+        if unknown:
+            show = ", ".join(sorted(unknown))
+            raise ConfigError(f"Unknown concurrency choices: {show}")
+        light_threads = concurrencies & self.LIGHT_THREADS
+        if len(light_threads) > 1:
+            show = ", ".join(sorted(light_threads))
+            raise ConfigError(f"Conflicting concurrency settings: {show}")
+
+    def debug_info(self) -> list[tuple[str, Any]]:
+        """Make a list of (name, value) pairs for writing debug info."""
+        return human_sorted_items((k, v) for k, v in self.__dict__.items() if not k.startswith("_"))
+
+    def serialize(self) -> str:
+        """Convert to a string that can be ingested with `deserialize`.
+
+        File paths used by `coverage run` are made absolute to ensure the
+        deserialized config will refer to the same files.
+        """
+        data = {k: v for k, v in self.__dict__.items() if not k.startswith("_")}
+        for k, must_exist in self.SERIALIZE_ABSPATH:
+            abs_fn = abs_path_if_exists if must_exist else os.path.abspath
+            v = data[k]
+            if isinstance(v, list):
+                v = list(map(abs_fn, v))
+            elif isinstance(v, str):
+                v = abs_fn(v)
+            data[k] = v
+        return base64.b64encode(json.dumps(data).encode()).decode()
+
+    @classmethod
+    def deserialize(cls, config_str: str) -> CoverageConfig:
+        """Take a string from `serialize`, and make a CoverageConfig."""
+        data = json.loads(base64.b64decode(config_str.encode()).decode())
+        config = cls()
+        config.__dict__.update(data)
+        return config
+
+
+def process_file_value(path: str) -> str:
+    """Make adjustments to a file path to make it usable."""
+    return os.path.expanduser(path)
+
+
+def abs_path_if_exists(path: str) -> str:
+    """os.path.abspath, but only if the path exists."""
+    if os.path.exists(path):
+        return os.path.abspath(path)
+    else:
+        return path
+
+
+def process_regexlist(name: str, option: str, values: list[str]) -> list[str]:
+    """Check the values in a regex list and keep the non-blank ones."""
+    value_list = []
+    for value in values:
+        value = value.strip()
+        try:
+            re.compile(value)
+        except re.error as e:
+            raise ConfigError(f"Invalid [{name}].{option} value {value!r}: {e}") from e
+        if value:
+            value_list.append(value)
+    return value_list
+
+
+def config_files_to_try(config_file: bool | str) -> list[tuple[str, bool, bool]]:
+    """What config files should we try to read?
+
+    Returns a list of tuples:
+        (filename, is_our_file, was_file_specified)
+    """
+
+    # Some API users were specifying ".coveragerc" to mean the same as
+    # True, so make it so.
+    if config_file == ".coveragerc":
+        config_file = True
+    specified_file = config_file is not True
+    if not specified_file:
+        # No file was specified. Check COVERAGE_RCFILE.
+        rcfile = os.getenv("COVERAGE_RCFILE")
+        if rcfile:
+            config_file = rcfile
+            specified_file = True
+    if not specified_file:
+        # Still no file specified. Default to .coveragerc
+        config_file = ".coveragerc"
+    assert isinstance(config_file, str)
+    files_to_try = [
+        (config_file, True, specified_file),
+        (".coveragerc.toml", True, False),
+        ("setup.cfg", False, False),
+        ("tox.ini", False, False),
+        ("pyproject.toml", False, False),
+    ]
+    return files_to_try
+
+
+def read_coverage_config(
+    config_file: bool | str,
+    warn: Callable[[str], None],
+    **kwargs: TConfigValueIn,
+) -> CoverageConfig:
+    """Read the coverage.py configuration.
+
+    Arguments:
+        config_file: a boolean or string, see the `Coverage` class for the
+            tricky details.
+        warn: a function to issue warnings.
+        all others: keyword arguments from the `Coverage` class, used for
+            setting values in the configuration.
+
+    Returns:
+        config:
+            config is a CoverageConfig object read from the appropriate
+            configuration file.
+
+    """
+    # Build the configuration from a number of sources:
+    # 1) defaults:
+    config = CoverageConfig()
+
+    # 2) from a file:
+    if config_file:
+        files_to_try = config_files_to_try(config_file)
+
+        for fname, our_file, specified_file in files_to_try:
+            config_read = config.from_file(fname, warn, our_file=our_file)
+            if config_read:
+                break
+            if specified_file:
+                raise ConfigError(f"Couldn't read {fname!r} as a config file")
+
+    # 3) from environment variables:
+    env_data_file = os.getenv("COVERAGE_FILE")
+    if env_data_file:
+        config.data_file = env_data_file
+
+    # $set_env.py: COVERAGE_DEBUG - Debug options: https://coverage.rtfd.io/cmd.html#debug
+    debugs = os.getenv("COVERAGE_DEBUG")
+    if debugs:
+        config.debug.extend(d.strip() for d in debugs.split(","))
+
+    # Read the COVERAGE_CORE environment variable for backward compatibility,
+    # and because we use it in the test suite to pick a specific core.
+    env_core = os.getenv("COVERAGE_CORE")
+    if env_core:
+        config.core = env_core
+
+    # 4) from constructor arguments:
+    config.from_args(**kwargs)
+
+    # 5) for our benchmark, force settings using a secret environment variable:
+    force_file = os.getenv("COVERAGE_FORCE_CONFIG")
+    if force_file:
+        config.from_file(force_file, warn, our_file=True)
+
+    # Once all the config has been collected, there's a little post-processing
+    # to do.
+    config.post_process()
+
+    return config

calculator/lib/python3.12/site-packages/coverage/context.py

@@ -0,0 +1,74 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Determine contexts for coverage.py"""
+
+from __future__ import annotations
+
+from collections.abc import Sequence
+from types import FrameType
+
+from coverage.types import TShouldStartContextFn
+
+
+def combine_context_switchers(
+    context_switchers: Sequence[TShouldStartContextFn],
+) -> TShouldStartContextFn | None:
+    """Create a single context switcher from multiple switchers.
+
+    `context_switchers` is a list of functions that take a frame as an
+    argument and return a string to use as the new context label.
+
+    Returns a function that composites `context_switchers` functions, or None
+    if `context_switchers` is an empty list.
+
+    When invoked, the combined switcher calls `context_switchers` one-by-one
+    until a string is returned.  The combined switcher returns None if all
+    `context_switchers` return None.
+    """
+    if not context_switchers:
+        return None
+
+    if len(context_switchers) == 1:
+        return context_switchers[0]
+
+    def should_start_context(frame: FrameType) -> str | None:
+        """The combiner for multiple context switchers."""
+        for switcher in context_switchers:
+            new_context = switcher(frame)
+            if new_context is not None:
+                return new_context
+        return None
+
+    return should_start_context
+
+
+def should_start_context_test_function(frame: FrameType) -> str | None:
+    """Is this frame calling a test_* function?"""
+    co_name = frame.f_code.co_name
+    if co_name.startswith("test") or co_name == "runTest":
+        return qualname_from_frame(frame)
+    return None
+
+
+def qualname_from_frame(frame: FrameType) -> str | None:
+    """Get a qualified name for the code running in `frame`."""
+    co = frame.f_code
+    fname = co.co_name
+    method = None
+    if co.co_argcount and co.co_varnames[0] == "self":
+        self = frame.f_locals.get("self", None)
+        method = getattr(self, fname, None)
+
+    if method is None:
+        func = frame.f_globals.get(fname)
+        if func is None:
+            return None
+        return f"{func.__module__}.{fname}"
+
+    func = getattr(method, "__func__", None)
+    if func is None:
+        cls = self.__class__
+        return f"{cls.__module__}.{cls.__name__}.{fname}"
+
+    return f"{func.__module__}.{func.__qualname__}"

calculator/lib/python3.12/site-packages/coverage/core.py

@@ -0,0 +1,139 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Management of core choices."""
+
+from __future__ import annotations
+
+import os
+import sys
+from typing import Any
+
+from coverage import env
+from coverage.config import CoverageConfig
+from coverage.disposition import FileDisposition
+from coverage.exceptions import ConfigError
+from coverage.misc import isolate_module
+from coverage.pytracer import PyTracer
+from coverage.sysmon import SysMonitor
+from coverage.types import TDebugCtl, TFileDisposition, Tracer, TWarnFn
+
+os = isolate_module(os)
+
+IMPORT_ERROR: str = ""
+
+try:
+    # Use the C extension code when we can, for speed.
+    import coverage.tracer
+
+    CTRACER_FILE: str | None = getattr(coverage.tracer, "__file__", "unknown")
+except ImportError as imp_err:
+    # Couldn't import the C extension, maybe it isn't built.
+    # We still need to check the environment variable directly here,
+    # as this code runs before configuration is loaded.
+    if os.getenv("COVERAGE_CORE") == "ctrace":  # pragma: part covered
+        # During testing, we use the COVERAGE_CORE environment variable
+        # to indicate that we've fiddled with the environment to test this
+        # fallback code.  If we thought we had a C tracer, but couldn't import
+        # it, then exit quickly and clearly instead of dribbling confusing
+        # errors. I'm using sys.exit here instead of an exception because an
+        # exception here causes all sorts of other noise in unittest.
+        sys.stderr.write("*** COVERAGE_CORE is 'ctrace' but can't import CTracer!\n")
+        sys.exit(1)
+    IMPORT_ERROR = str(imp_err)
+    CTRACER_FILE = None
+
+
+class Core:
+    """Information about the central technology enabling execution measurement."""
+
+    tracer_class: type[Tracer]
+    tracer_kwargs: dict[str, Any]
+    file_disposition_class: type[TFileDisposition]
+    supports_plugins: bool
+    packed_arcs: bool
+    systrace: bool
+
+    def __init__(
+        self,
+        *,
+        warn: TWarnFn,
+        debug: TDebugCtl | None,
+        config: CoverageConfig,
+        dynamic_contexts: bool,
+        metacov: bool,
+    ) -> None:
+        def _debug(msg: str) -> None:
+            if debug:
+                debug.write(msg)
+
+        _debug("in core.py")
+
+        # Check the conditions that preclude us from using sys.monitoring.
+        reason_no_sysmon = ""
+        if not env.PYBEHAVIOR.pep669:
+            reason_no_sysmon = "sys.monitoring isn't available in this version"
+        elif config.branch and not env.PYBEHAVIOR.branch_right_left:
+            reason_no_sysmon = "sys.monitoring can't measure branches in this version"
+        elif dynamic_contexts:
+            reason_no_sysmon = "it doesn't yet support dynamic contexts"
+        elif any((bad := c) in config.concurrency for c in ["greenlet", "eventlet", "gevent"]):
+            reason_no_sysmon = f"it doesn't support concurrency={bad}"
+
+        core_name: str | None = None
+        if config.timid:
+            core_name = "pytrace"
+            _debug("core.py: Using pytrace because timid=True")
+        elif core_name is None:
+            # This could still leave core_name as None.
+            core_name = config.core
+            _debug(f"core.py: core from config is {core_name!r}")
+
+        if core_name == "sysmon" and reason_no_sysmon:
+            _debug(f"core.py: defaulting because sysmon not usable: {reason_no_sysmon}")
+            warn(f"Can't use core=sysmon: {reason_no_sysmon}, using default core", slug="no-sysmon")
+            core_name = None
+
+        if core_name is None:
+            if env.SYSMON_DEFAULT and not reason_no_sysmon:
+                core_name = "sysmon"
+                _debug("core.py: Using sysmon because SYSMON_DEFAULT is set")
+            else:
+                core_name = "ctrace"
+                _debug("core.py: Defaulting to ctrace core")
+
+        if core_name == "ctrace":
+            if not CTRACER_FILE:
+                if IMPORT_ERROR and env.SHIPPING_WHEELS:
+                    warn(f"Couldn't import C tracer: {IMPORT_ERROR}", slug="no-ctracer", once=True)
+                core_name = "pytrace"
+                _debug("core.py: Falling back to pytrace because C tracer not available")
+
+        _debug(f"core.py: Using core={core_name}")
+
+        self.tracer_kwargs = {}
+
+        if core_name == "sysmon":
+            self.tracer_class = SysMonitor
+            self.tracer_kwargs["tool_id"] = 3 if metacov else 1
+            self.file_disposition_class = FileDisposition
+            self.supports_plugins = False
+            self.packed_arcs = False
+            self.systrace = False
+        elif core_name == "ctrace":
+            self.tracer_class = coverage.tracer.CTracer
+            self.file_disposition_class = coverage.tracer.CFileDisposition
+            self.supports_plugins = True
+            self.packed_arcs = True
+            self.systrace = True
+        elif core_name == "pytrace":
+            self.tracer_class = PyTracer
+            self.file_disposition_class = FileDisposition
+            self.supports_plugins = False
+            self.packed_arcs = False
+            self.systrace = True
+        else:
+            raise ConfigError(f"Unknown core value: {core_name!r}")
+
+    def __repr__(self) -> str:
+        return f"<Core tracer_class={self.tracer_class.__name__}>"

calculator/lib/python3.12/site-packages/coverage/data.py

@@ -0,0 +1,268 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Coverage data for coverage.py.
+
+This file had the 4.x JSON data support, which is now gone.  This file still
+has storage-agnostic helpers, and is kept to avoid changing too many imports.
+CoverageData is now defined in sqldata.py, and imported here to keep the
+imports working.
+
+"""
+
+from __future__ import annotations
+
+import functools
+import glob
+import hashlib
+import os.path
+from collections.abc import Callable, Iterable
+from typing import Literal
+
+from coverage.exceptions import CoverageException, NoDataError
+from coverage.files import PathAliases
+from coverage.misc import Hasher, file_be_gone, human_sorted, plural
+from coverage.sqldata import CoverageData as CoverageData  # pylint: disable=useless-import-alias
+from coverage.sqldata import filename_match
+
+
+def line_counts(data: CoverageData, fullpath: bool = False) -> dict[str, int]:
+    """Return a dict summarizing the line coverage data.
+
+    Keys are based on the file names, and values are the number of executed
+    lines.  If `fullpath` is true, then the keys are the full pathnames of
+    the files, otherwise they are the basenames of the files.
+
+    Returns a dict mapping file names to counts of lines.
+
+    """
+    summ = {}
+    filename_fn: Callable[[str], str]
+    if fullpath:
+        # pylint: disable=unnecessary-lambda-assignment
+        filename_fn = lambda f: f
+    else:
+        filename_fn = os.path.basename
+    for filename in data.measured_files():
+        lines = data.lines(filename)
+        assert lines is not None
+        summ[filename_fn(filename)] = len(lines)
+    return summ
+
+
+def add_data_to_hash(data: CoverageData, filename: str, hasher: Hasher) -> None:
+    """Contribute `filename`'s data to the `hasher`.
+
+    `hasher` is a `coverage.misc.Hasher` instance to be updated with
+    the file's data.  It should only get the results data, not the run
+    data.
+
+    """
+    if data.has_arcs():
+        hasher.update(sorted(data.arcs(filename) or []))
+    else:
+        hasher.update(sorted_lines(data, filename))
+    hasher.update(data.file_tracer(filename))
+
+
+def combinable_files(data_file: str, data_paths: Iterable[str] | None = None) -> list[str]:
+    """Make a list of data files to be combined.
+
+    `data_file` is a path to a data file.  `data_paths` is a list of files or
+    directories of files.
+
+    Returns a list of absolute file paths.
+    """
+    data_dir, local = os.path.split(os.path.abspath(data_file))
+
+    data_paths = data_paths or [data_dir]
+    files_to_combine = []
+    for p in data_paths:
+        if os.path.isfile(p):
+            files_to_combine.append(os.path.abspath(p))
+        elif os.path.isdir(p):
+            pattern = glob.escape(os.path.join(os.path.abspath(p), local)) + ".*"
+            files_to_combine.extend(glob.glob(pattern))
+        else:
+            raise NoDataError(f"Couldn't combine from non-existent path '{p}'")
+
+    # SQLite might have made journal files alongside our database files.
+    # We never want to combine those.
+    files_to_combine = [fnm for fnm in files_to_combine if not fnm.endswith("-journal")]
+
+    # Sorting isn't usually needed, since it shouldn't matter what order files
+    # are combined, but sorting makes tests more predictable, and makes
+    # debugging more understandable when things go wrong.
+    return sorted(files_to_combine)
+
+
+def hash_for_data_file(dbfilename: str) -> str:
+    """Get the hash of the data in the file."""
+    m = filename_match(dbfilename)
+    if m and m["hash"]:
+        return m["hash"]
+    else:
+        with open(dbfilename, "rb") as fobj:
+            hasher = hashlib.new("sha3_256", usedforsecurity=False)
+            hasher.update(fobj.read())
+        return hasher.hexdigest()
+
+
+class DataFileClassifier:
+    """Track what files to combine and which to skip."""
+
+    def __init__(self) -> None:
+        self.file_hashes: set[str] = set()
+
+    def classify(self, f: str) -> Literal["combine", "skip"]:
+        """Determine whether to combine or skip this file."""
+        try:
+            sha = hash_for_data_file(f)
+        except Exception:
+            # We can't get the hash of the file, so let's try to combine it.
+            # Probably it will fail later, but that error will be handled.
+            return "combine"
+        if sha in self.file_hashes:
+            return "skip"
+        else:
+            self.file_hashes.add(sha)
+            return "combine"
+
+
+def combine_parallel_data(
+    data: CoverageData,
+    aliases: PathAliases | None = None,
+    data_paths: Iterable[str] | None = None,
+    strict: bool = False,
+    keep: bool = False,
+    message: Callable[[str], None] | None = None,
+) -> None:
+    """Combine a number of data files together.
+
+    `data` is a CoverageData.
+
+    Treat `data.filename` as a file prefix, and combine the data from all
+    of the data files starting with that prefix plus a dot.
+
+    If `aliases` is provided, it's a `PathAliases` object that is used to
+    re-map paths to match the local machine's.
+
+    If `data_paths` is provided, it is a list of directories or files to
+    combine.  Directories are searched for files that start with
+    `data.filename` plus dot as a prefix, and those files are combined.
+
+    If `data_paths` is not provided, then the directory portion of
+    `data.filename` is used as the directory to search for data files.
+
+    Unless `keep` is True every data file found and combined is then deleted
+    from disk. If a file cannot be read, a warning will be issued, and the
+    file will not be deleted.
+
+    If `strict` is true, and no files are found to combine, an error is
+    raised.
+
+    `message` is a function to use for printing messages to the user.
+
+    """
+    files_to_combine = combinable_files(data.base_filename(), data_paths)
+
+    if strict and not files_to_combine:
+        raise NoDataError("No data to combine")
+
+    if aliases is None:
+        map_path = None
+    else:
+        map_path = functools.cache(aliases.map)
+
+    classifier = DataFileClassifier()
+    combined_any = False
+
+    combined = skipped = errored = 0
+    for f in files_to_combine:
+        if f == data.data_filename():
+            # Sometimes we are combining into a file which is one of the
+            # parallel files.  Skip that file.
+            if data._debug.should("dataio"):
+                data._debug.write(f"Skipping combining ourself: {f!r}")
+            continue
+
+        try:
+            rel_file_name = os.path.relpath(f)
+        except ValueError:
+            # ValueError can be raised under Windows when os.getcwd() returns a
+            # folder from a different drive than the drive of f, in which case
+            # we print the original value of f instead of its relative path.
+            rel_file_name = f
+
+        file_action = classifier.classify(f)
+
+        delete_this_one = not keep
+        if file_action == "combine":
+            if data._debug.should("dataio"):
+                data._debug.write(f"Combining data file {f!r}")
+            try:
+                new_data = CoverageData(f, debug=data._debug)
+                new_data.read()
+            except CoverageException as exc:
+                errored += 1
+                if data._warn:
+                    # The CoverageException has the file name in it, so just
+                    # use the message as the warning.
+                    data._warn(str(exc))
+                if data._debug.should("combine"):
+                    data._debug.write(f"Couldn't combine data file {rel_file_name}: {exc}")
+                delete_this_one = False
+            else:
+                data.update(new_data, map_path=map_path)
+                combined += 1
+                combined_any = True
+                if data._debug.should("combine"):
+                    data._debug.write(f"Combined data file {rel_file_name}")
+        else:
+            skipped += 1
+            if data._debug.should("combine"):
+                data._debug.write(f"Skipping duplicate data {rel_file_name}")
+
+        if delete_this_one:
+            if data._debug.should("dataio"):
+                data._debug.write(f"Deleting data file {f!r}")
+            file_be_gone(f)
+
+    if strict and not combined_any:
+        raise NoDataError("No usable data files")
+
+    if message and (combined + skipped + errored > 0):
+        msg = f"Combined {plural(combined, 'file')}"
+        if skipped:
+            msg += f", skipped {skipped}"
+        if errored:
+            msg += f", {plural(errored, 'file')} errored"
+        message(msg)
+
+
+def debug_data_file(filename: str) -> None:
+    """Implementation of 'coverage debug data'."""
+    data = CoverageData(filename)
+    filename = data.data_filename()
+    print(f"path: {filename}")
+    if not os.path.exists(filename):
+        print("No data collected: file doesn't exist")
+        return
+    data.read()
+    print(f"has_arcs: {data.has_arcs()!r}")
+    summary = line_counts(data, fullpath=True)
+    filenames = human_sorted(summary.keys())
+    nfiles = len(filenames)
+    print(f"{plural(nfiles, 'file')}:")
+    for f in filenames:
+        line = f"{f}: {plural(summary[f], 'line')}"
+        plugin = data.file_tracer(f)
+        if plugin:
+            line += f" [{plugin}]"
+        print(line)
+
+
+def sorted_lines(data: CoverageData, filename: str) -> list[int]:
+    """Get the sorted lines for a file, for tests."""
+    lines = data.lines(filename)
+    return sorted(lines or [])

calculator/lib/python3.12/site-packages/coverage/debug.py

@@ -0,0 +1,667 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Control of and utilities for debugging."""
+
+from __future__ import annotations
+
+import _thread
+import atexit
+import contextlib
+import datetime
+import functools
+import inspect
+import itertools
+import os
+import pprint
+import re
+import reprlib
+import sys
+import traceback
+import types
+from collections.abc import Callable, Iterable, Iterator, Mapping
+from typing import IO, Any, Final, overload
+
+from coverage.misc import human_sorted_items, isolate_module
+from coverage.types import AnyCallable, TWritable
+
+os = isolate_module(os)
+
+
+# When debugging, it can be helpful to force some options, especially when
+# debugging the configuration mechanisms you usually use to control debugging!
+# This is a list of forced debugging options.
+FORCED_DEBUG: list[str] = []
+FORCED_DEBUG_FILE = None
+
+
+class DebugControl:
+    """Control and output for debugging."""
+
+    show_repr_attr = False  # For auto_repr
+
+    def __init__(
+        self,
+        options: Iterable[str],
+        output: IO[str] | None,
+        file_name: str | None = None,
+    ) -> None:
+        """Configure the options and output file for debugging."""
+        self.options = list(options) + FORCED_DEBUG
+        self.suppress_callers = False
+
+        filters = []
+        if self.should("process"):
+            filters.append(CwdTracker().filter)
+            filters.append(ProcessTracker().filter)
+        if self.should("pytest"):
+            filters.append(PytestTracker().filter)
+        if self.should("pid"):
+            filters.append(add_pid_and_tid)
+
+        self.output = DebugOutputFile.get_one(
+            output,
+            file_name=file_name,
+            filters=filters,
+        )
+        self.raw_output = self.output.outfile
+
+    def __repr__(self) -> str:
+        return f"<DebugControl options={self.options!r} raw_output={self.raw_output!r}>"
+
+    def should(self, option: str) -> bool:
+        """Decide whether to output debug information in category `option`."""
+        if option == "callers" and self.suppress_callers:
+            return False
+        return option in self.options
+
+    @contextlib.contextmanager
+    def without_callers(self) -> Iterator[None]:
+        """A context manager to prevent call stacks from being logged."""
+        old = self.suppress_callers
+        self.suppress_callers = True
+        try:
+            yield
+        finally:
+            self.suppress_callers = old
+
+    def write(self, msg: str, *, exc: BaseException | None = None) -> None:
+        """Write a line of debug output.
+
+        `msg` is the line to write. A newline will be appended.
+
+        If `exc` is provided, a stack trace of the exception will be written
+        after the message.
+
+        """
+        self.output.write(msg + "\n")
+        if exc is not None:
+            self.output.write("".join(traceback.format_exception(None, exc, exc.__traceback__)))
+        if self.should("self"):
+            caller_self = inspect.stack()[1][0].f_locals.get("self")
+            if caller_self is not None:
+                self.output.write(f"self: {caller_self!r}\n")
+        if self.should("callers"):
+            dump_stack_frames(out=self.output, skip=1)
+        self.output.flush()
+
+
+class NoDebugging(DebugControl):
+    """A replacement for DebugControl that will never try to do anything."""
+
+    def __init__(self) -> None:
+        # pylint: disable=super-init-not-called
+        pass
+
+    def should(self, option: str) -> bool:
+        """Should we write debug messages?  Never."""
+        return False
+
+    @contextlib.contextmanager
+    def without_callers(self) -> Iterator[None]:
+        """A dummy context manager to satisfy the api."""
+        yield  # pragma: never called
+
+    def write(self, msg: str, *, exc: BaseException | None = None) -> None:
+        """This will never be called."""
+        raise AssertionError("NoDebugging.write should never be called.")
+
+
+class DevNullDebug(NoDebugging):
+    """A DebugControl that won't write anywhere."""
+
+    def write(self, msg: str, *, exc: BaseException | None = None) -> None:
+        pass
+
+
+def info_header(label: str) -> str:
+    """Make a nice header string."""
+    return "--{:-<60s}".format(" " + label + " ")
+
+
+def info_formatter(info: Iterable[tuple[str, Any]]) -> Iterable[str]:
+    """Produce a sequence of formatted lines from info.
+
+    `info` is a sequence of pairs (label, data).  The produced lines are
+    nicely formatted, ready to print.
+
+    """
+    info = list(info)
+    if not info:
+        return
+    LABEL_LEN = 30
+    assert all(len(l) < LABEL_LEN for l, _ in info)
+    for label, data in info:
+        if data == []:
+            data = "-none-"
+        prefix = f"{label:>{LABEL_LEN}}: "
+        match data:
+            case tuple() if len(str(data)) < 30:
+                yield f"{prefix}{data}"
+            case tuple() | list() | set():
+                for e in data:
+                    yield f"{prefix}{e}"
+                    prefix = " " * (LABEL_LEN + 2)
+            case _:
+                yield f"{prefix}{data}"
+
+
+def write_formatted_info(
+    write: Callable[[str], None],
+    header: str,
+    info: Iterable[tuple[str, Any]],
+) -> None:
+    """Write a sequence of (label,data) pairs nicely.
+
+    `write` is a function write(str) that accepts each line of output.
+    `header` is a string to start the section.  `info` is a sequence of
+    (label, data) pairs, where label is a str, and data can be a single
+    value, or a list/set/tuple.
+
+    """
+    write(info_header(header))
+    for line in info_formatter(info):
+        write(f" {line}")
+
+
+def exc_one_line(exc: Exception) -> str:
+    """Get a one-line summary of an exception, including class name and message."""
+    lines = traceback.format_exception_only(type(exc), exc)
+    return "|".join(l.rstrip() for l in lines)
+
+
+_FILENAME_REGEXES: list[tuple[str, str]] = [
+    (r".*[/\\]pytest-of-.*[/\\]pytest-\d+([/\\]popen-gw\d+)?", "tmp:"),
+]
+_FILENAME_SUBS: list[tuple[str, str]] = []
+
+
+@overload
+def short_filename(filename: str) -> str:
+    pass
+
+
+@overload
+def short_filename(filename: None) -> None:
+    pass
+
+
+def short_filename(filename: str | None) -> str | None:
+    """Shorten a file name. Directories are replaced by prefixes like 'syspath:'"""
+    if not _FILENAME_SUBS:
+        for pathdir in sys.path:
+            _FILENAME_SUBS.append((pathdir, "syspath:"))
+        import coverage
+
+        _FILENAME_SUBS.append((os.path.dirname(coverage.__file__), "cov:"))
+        _FILENAME_SUBS.sort(key=(lambda pair: len(pair[0])), reverse=True)
+    if filename is not None:
+        for pat, sub in _FILENAME_REGEXES:
+            filename = re.sub(pat, sub, filename)
+        for before, after in _FILENAME_SUBS:
+            filename = filename.replace(before, after)
+    return filename
+
+
+def file_summary(filename: str) -> str:
+    """A one-line summary of a file, for log messages."""
+    try:
+        s = os.stat(filename)
+    except FileNotFoundError:
+        summary = "does not exist"
+    except Exception as e:
+        summary = f"error: {e}"
+    else:
+        mod = datetime.datetime.fromtimestamp(s.st_mtime)
+        summary = f"{s.st_size} bytes, modified {mod}"
+    return summary
+
+
+def short_stack(
+    skip: int = 0,
+    full: bool = False,
+    frame_ids: bool = False,
+    short_filenames: bool = False,
+) -> str:
+    """Return a string summarizing the call stack.
+
+    The string is multi-line, with one line per stack frame. Each line shows
+    the function name, the file name, and the line number:
+
+        ...
+        start_import_stop : /Users/ned/coverage/trunk/tests/coveragetest.py:95
+        import_local_file : /Users/ned/coverage/trunk/tests/coveragetest.py:81
+        import_local_file : /Users/ned/coverage/trunk/coverage/backward.py:159
+        ...
+
+    `skip` is the number of closest immediate frames to skip, so that debugging
+    functions can call this and not be included in the result.
+
+    If `full` is true, then include all frames.  Otherwise, initial "boring"
+    frames (ones in site-packages and earlier) are omitted.
+
+    `short_filenames` will shorten filenames using `short_filename`, to reduce
+    the amount of repetitive noise in stack traces.
+
+    """
+    # Regexes in initial frames that we don't care about.
+    # fmt: off
+    BORING_PRELUDE = [
+        "<string>",             # pytest-xdist has string execution.
+        r"\bigor.py$",          # Our test runner.
+        r"\bsite-packages\b",   # pytest etc getting to our tests.
+    ]
+    # fmt: on
+
+    stack: Iterable[inspect.FrameInfo] = inspect.stack()[:skip:-1]
+    if not full:
+        for pat in BORING_PRELUDE:
+            stack = itertools.dropwhile(
+                (lambda fi, pat=pat: re.search(pat, fi.filename)),  # type: ignore[misc]
+                stack,
+            )
+    lines = []
+    for frame_info in stack:
+        line = f"{frame_info.function:>30s} : "
+        if frame_ids:
+            line += f"{id(frame_info.frame):#x} "
+        filename = frame_info.filename
+        if short_filenames:
+            filename = short_filename(filename)
+        line += f"{filename}:{frame_info.lineno}"
+        lines.append(line)
+    return "\n".join(lines)
+
+
+def dump_stack_frames(out: TWritable, skip: int = 0) -> None:
+    """Print a summary of the stack to `out`."""
+    out.write(short_stack(skip=skip + 1) + "\n")
+
+
+def clipped_repr(text: str, numchars: int = 50) -> str:
+    """`repr(text)`, but limited to `numchars`."""
+    r = reprlib.Repr()
+    r.maxstring = numchars
+    return r.repr(text)
+
+
+def short_id(id64: int) -> int:
+    """Given a 64-bit id, make a shorter 16-bit one."""
+    id16 = 0
+    for offset in range(0, 64, 16):
+        id16 ^= id64 >> offset
+    return id16 & 0xFFFF
+
+
+def add_pid_and_tid(text: str) -> str:
+    """A filter to add pid and tid to debug messages."""
+    # Thread ids are useful, but too long. Make a shorter one.
+    tid = f"{short_id(_thread.get_ident()):04x}"
+    text = f"{os.getpid():5d}.{tid}: {text}"
+    return text
+
+
+AUTO_REPR_IGNORE = {"$coverage.object_id"}
+
+
+def auto_repr(self: Any) -> str:
+    """A function implementing an automatic __repr__ for debugging."""
+    show_attrs = (
+        (k, v)
+        for k, v in self.__dict__.items()
+        if getattr(v, "show_repr_attr", True)
+        and not inspect.ismethod(v)
+        and k not in AUTO_REPR_IGNORE
+    )
+    return "<{klass} @{id:#x}{attrs}>".format(
+        klass=self.__class__.__name__,
+        id=id(self),
+        attrs="".join(f" {k}={v!r}" for k, v in show_attrs),
+    )
+
+
+def simplify(v: Any) -> Any:  # pragma: debugging
+    """Turn things which are nearly dict/list/etc into dict/list/etc."""
+    if isinstance(v, dict):
+        return {k: simplify(vv) for k, vv in v.items()}
+    elif isinstance(v, (list, tuple)):
+        return type(v)(simplify(vv) for vv in v)
+    elif hasattr(v, "__dict__"):
+        return simplify({"." + k: v for k, v in v.__dict__.items()})
+    else:
+        return v
+
+
+def ppformat(v: Any) -> str:  # pragma: debugging
+    """Debug helper to pretty-print data, including SimpleNamespace objects."""
+    return pprint.pformat(simplify(v), indent=4, compact=True, sort_dicts=True, width=140)
+
+
+def pp(v: Any) -> None:  # pragma: debugging
+    """Debug helper to pretty-print data, including SimpleNamespace objects."""
+    print(ppformat(v))
+
+
+def filter_text(text: str, filters: Iterable[Callable[[str], str]]) -> str:
+    """Run `text` through a series of filters.
+
+    `filters` is a list of functions. Each takes a string and returns a
+    string.  Each is run in turn. After each filter, the text is split into
+    lines, and each line is passed through the next filter.
+
+    Returns: the final string that results after all of the filters have
+    run.
+
+    """
+    clean_text = text.rstrip()
+    ending = text[len(clean_text) :]
+    text = clean_text
+    for filter_fn in filters:
+        lines = []
+        for line in text.splitlines():
+            lines.extend(filter_fn(line).splitlines())
+        text = "\n".join(lines)
+    return text + ending
+
+
+class CwdTracker:
+    """A class to add cwd info to debug messages."""
+
+    def __init__(self) -> None:
+        self.cwd: str | None = None
+
+    def filter(self, text: str) -> str:
+        """Add a cwd message for each new cwd."""
+        cwd = os.getcwd()
+        if cwd != self.cwd:
+            text = f"cwd is now {cwd!r}\n{text}"
+            self.cwd = cwd
+        return text
+
+
+class ProcessTracker:
+    """Track process creation for debug logging."""
+
+    def __init__(self) -> None:
+        self.pid: int = os.getpid()
+        self.did_welcome = False
+
+    def filter(self, text: str) -> str:
+        """Add a message about how new processes came to be."""
+        welcome = ""
+        pid = os.getpid()
+        if self.pid != pid:
+            welcome = f"New process: forked {self.pid} -> {pid}\n"
+            self.pid = pid
+        elif not self.did_welcome:
+            argv = getattr(sys, "argv", None)
+            welcome = (
+                f"New process: {pid=}, executable: {sys.executable!r}\n"
+                + f"New process: cmd: {argv!r}\n"
+                + f"New process parent pid: {os.getppid()!r}\n"
+            )
+
+        if welcome:
+            self.did_welcome = True
+            return welcome + text
+        else:
+            return text
+
+
+class PytestTracker:
+    """Track the current pytest test name to add to debug messages."""
+
+    def __init__(self) -> None:
+        self.test_name: str | None = None
+
+    def filter(self, text: str) -> str:
+        """Add a message when the pytest test changes."""
+        test_name = os.getenv("PYTEST_CURRENT_TEST")
+        if test_name != self.test_name:
+            text = f"Pytest context: {test_name}\n{text}"
+            self.test_name = test_name
+        return text
+
+
+class DebugOutputFile:
+    """A file-like object that includes pid and cwd information."""
+
+    def __init__(
+        self,
+        outfile: IO[str] | None,
+        filters: Iterable[Callable[[str], str]],
+    ):
+        self.outfile = outfile
+        self.filters = list(filters)
+        self.pid = os.getpid()
+
+    @classmethod
+    def get_one(
+        cls,
+        fileobj: IO[str] | None = None,
+        file_name: str | None = None,
+        filters: Iterable[Callable[[str], str]] = (),
+        interim: bool = False,
+    ) -> DebugOutputFile:
+        """Get a DebugOutputFile.
+
+        If `fileobj` is provided, then a new DebugOutputFile is made with it.
+
+        If `fileobj` isn't provided, then a file is chosen (`file_name` if
+        provided, or COVERAGE_DEBUG_FILE, or stderr), and a process-wide
+        singleton DebugOutputFile is made.
+
+        `filters` are the text filters to apply to the stream to annotate with
+        pids, etc.
+
+        If `interim` is true, then a future `get_one` can replace this one.
+
+        """
+        if fileobj is not None:
+            # Make DebugOutputFile around the fileobj passed.
+            return cls(fileobj, filters)
+
+        the_one, is_interim = cls._get_singleton_data()
+        if the_one is None or is_interim:
+            if file_name is not None:
+                fileobj = open(file_name, "a", encoding="utf-8")
+            else:
+                # $set_env.py: COVERAGE_DEBUG_FILE - Where to write debug output
+                file_name = os.getenv("COVERAGE_DEBUG_FILE", FORCED_DEBUG_FILE)
+                if file_name in ["stdout", "stderr"]:
+                    fileobj = getattr(sys, file_name)
+                elif file_name:
+                    fileobj = open(file_name, "a", encoding="utf-8")
+                    atexit.register(fileobj.close)
+                else:
+                    fileobj = sys.stderr
+            the_one = cls(fileobj, filters)
+            cls._set_singleton_data(the_one, interim)
+
+        if not (the_one.filters):
+            the_one.filters = list(filters)
+        return the_one
+
+    # Because of the way igor.py deletes and re-imports modules,
+    # this class can be defined more than once. But we really want
+    # a process-wide singleton. So stash it in sys.modules instead of
+    # on a class attribute. Yes, this is aggressively gross.
+
+    SYS_MOD_NAME: Final[str] = "$coverage.debug.DebugOutputFile.the_one"
+    SINGLETON_ATTR: Final[str] = "the_one_and_is_interim"
+
+    @classmethod
+    def _set_singleton_data(cls, the_one: DebugOutputFile, interim: bool) -> None:
+        """Set the one DebugOutputFile to rule them all."""
+        singleton_module = types.ModuleType(cls.SYS_MOD_NAME)
+        setattr(singleton_module, cls.SINGLETON_ATTR, (the_one, interim))
+        sys.modules[cls.SYS_MOD_NAME] = singleton_module
+
+    @classmethod
+    def _get_singleton_data(cls) -> tuple[DebugOutputFile | None, bool]:
+        """Get the one DebugOutputFile."""
+        singleton_module = sys.modules.get(cls.SYS_MOD_NAME)
+        return getattr(singleton_module, cls.SINGLETON_ATTR, (None, True))
+
+    @classmethod
+    def _del_singleton_data(cls) -> None:
+        """Delete the one DebugOutputFile, just for tests to use."""
+        if cls.SYS_MOD_NAME in sys.modules:
+            del sys.modules[cls.SYS_MOD_NAME]
+
+    def write(self, text: str) -> None:
+        """Just like file.write, but filter through all our filters."""
+        assert self.outfile is not None
+        if not self.outfile.closed:
+            self.outfile.write(filter_text(text, self.filters))
+            self.outfile.flush()
+
+    def flush(self) -> None:
+        """Flush our file."""
+        assert self.outfile is not None
+        if not self.outfile.closed:
+            self.outfile.flush()
+
+
+def log(msg: str, stack: bool = False) -> None:  # pragma: debugging
+    """Write a log message as forcefully as possible."""
+    out = DebugOutputFile.get_one(interim=True)
+    out.write(msg + "\n")
+    if stack:
+        dump_stack_frames(out=out, skip=1)
+
+
+def decorate_methods(
+    decorator: Callable[..., Any],
+    butnot: Iterable[str] = (),
+    private: bool = False,
+) -> Callable[..., Any]:  # pragma: debugging
+    """A class decorator to apply a decorator to methods."""
+
+    def _decorator(cls):  # type: ignore[no-untyped-def]
+        for name, meth in inspect.getmembers(cls, inspect.isroutine):
+            if name not in cls.__dict__:
+                continue
+            if name != "__init__":
+                if not private and name.startswith("_"):
+                    continue
+            if name in butnot:
+                continue
+            setattr(cls, name, decorator(meth))
+        return cls
+
+    return _decorator
+
+
+def break_in_debugger(func: AnyCallable) -> AnyCallable:  # pragma: debugging
+    """A function decorator to stop in the debugger for each call."""
+
+    @functools.wraps(func)
+    def _wrapper(*args: Any, **kwargs: Any) -> Any:
+        sys.stdout = sys.__stdout__
+        breakpoint()  # pylint: disable=forgotten-debug-statement
+        return func(*args, **kwargs)
+
+    return _wrapper
+
+
+OBJ_IDS = itertools.count()
+CALLS = itertools.count()
+OBJ_ID_ATTR = "$coverage.object_id"
+
+
+def show_calls(
+    show_args: bool = True,
+    show_stack: bool = False,
+    show_return: bool = False,
+) -> Callable[..., Any]:  # pragma: debugging
+    """A method decorator to debug-log each call to the function."""
+
+    def _decorator(func: AnyCallable) -> AnyCallable:
+        @functools.wraps(func)
+        def _wrapper(self: Any, *args: Any, **kwargs: Any) -> Any:
+            oid = getattr(self, OBJ_ID_ATTR, None)
+            if oid is None:
+                oid = f"{os.getpid():08d} {next(OBJ_IDS):04d}"
+                setattr(self, OBJ_ID_ATTR, oid)
+            extra = ""
+            if show_args:
+                eargs = ", ".join(map(repr, args))
+                ekwargs = ", ".join("{}={!r}".format(*item) for item in kwargs.items())
+                extra += "("
+                extra += eargs
+                if eargs and ekwargs:
+                    extra += ", "
+                extra += ekwargs
+                extra += ")"
+            if show_stack:
+                extra += " @ "
+                extra += "; ".join(short_stack(short_filenames=True).splitlines())
+            callid = next(CALLS)
+            msg = f"{oid} {callid:04d} {func.__name__}{extra}\n"
+            DebugOutputFile.get_one(interim=True).write(msg)
+            ret = func(self, *args, **kwargs)
+            if show_return:
+                msg = f"{oid} {callid:04d} {func.__name__} return {ret!r}\n"
+                DebugOutputFile.get_one(interim=True).write(msg)
+            return ret
+
+        return _wrapper
+
+    return _decorator
+
+
+def relevant_environment_display(env: Mapping[str, str]) -> list[tuple[str, str]]:
+    """Filter environment variables for a debug display.
+
+    Select variables to display (with COV or PY in the name, or HOME, TEMP, or
+    TMP), and also cloak sensitive values with asterisks.
+
+    Arguments:
+        env: a dict of environment variable names and values.
+
+    Returns:
+        A list of pairs (name, value) to show.
+
+    """
+    SLUGS = {"COV", "PY"}
+    INCLUDE = {"HOME", "TEMP", "TMP"}
+    CLOAK = {"API", "TOKEN", "KEY", "SECRET", "PASS", "SIGNATURE"}
+    TRUNCATE = {"COVERAGE_PROCESS_CONFIG"}
+    TRUNCATE_LEN = 60
+
+    to_show = []
+    for name, val in env.items():
+        show = False
+        if name in INCLUDE:
+            show = True
+        elif any(slug in name for slug in SLUGS):
+            show = True
+        if show:
+            if any(slug in name for slug in CLOAK):
+                val = re.sub(r"\w", "*", val)
+            if name in TRUNCATE:
+                if len(val) > TRUNCATE_LEN:
+                    val = val[: TRUNCATE_LEN - 3] + "..."
+            to_show.append((name, val))
+    return human_sorted_items(to_show)

calculator/lib/python3.12/site-packages/coverage/disposition.py

@@ -0,0 +1,59 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Simple value objects for tracking what to do with files."""
+
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+from coverage.types import TFileDisposition
+
+if TYPE_CHECKING:
+    from coverage.plugin import FileTracer
+
+
+class FileDisposition:
+    """A simple value type for recording what to do with a file."""
+
+    original_filename: str
+    canonical_filename: str
+    source_filename: str | None
+    trace: bool
+    reason: str
+    file_tracer: FileTracer | None
+    has_dynamic_filename: bool
+
+    def __repr__(self) -> str:
+        return f"<FileDisposition {self.canonical_filename!r}: trace={self.trace}>"
+
+
+# FileDisposition "methods": FileDisposition is a pure value object, so it can
+# be implemented in either C or Python.  Acting on them is done with these
+# functions.
+
+
+def disposition_init(cls: type[TFileDisposition], original_filename: str) -> TFileDisposition:
+    """Construct and initialize a new FileDisposition object."""
+    disp = cls()
+    disp.original_filename = original_filename
+    disp.canonical_filename = original_filename
+    disp.source_filename = None
+    disp.trace = False
+    disp.reason = ""
+    disp.file_tracer = None
+    disp.has_dynamic_filename = False
+    return disp
+
+
+def disposition_debug_msg(disp: TFileDisposition) -> str:
+    """Make a nice debug message of what the FileDisposition is doing."""
+    if disp.trace:
+        msg = f"Tracing {disp.original_filename!r}"
+        if disp.original_filename != disp.source_filename:
+            msg += f" as {disp.source_filename!r}"
+        if disp.file_tracer:
+            msg += f": will be traced by {disp.file_tracer!r}"
+    else:
+        msg = f"Not tracing {disp.original_filename!r}: {disp.reason}"
+    return msg

calculator/lib/python3.12/site-packages/coverage/env.py

@@ -0,0 +1,135 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Determine facts about the environment."""
+
+from __future__ import annotations
+
+import os
+import platform
+import sys
+from collections.abc import Iterable
+from typing import Any, Final
+
+# debug_info() at the bottom wants to show all the globals, but not imports.
+# Grab the global names here to know which names to not show. Nothing defined
+# above this line will be in the output.
+_UNINTERESTING_GLOBALS = list(globals())
+# These names also shouldn't be shown.
+_UNINTERESTING_GLOBALS += ["PYBEHAVIOR", "debug_info"]
+
+# Operating systems.
+WINDOWS = sys.platform == "win32"
+LINUX = sys.platform.startswith("linux")
+MACOS = sys.platform == "darwin"
+
+# Python implementations.
+CPYTHON = (platform.python_implementation() == "CPython")  # fmt: skip
+PYPY = (platform.python_implementation() == "PyPy")  # fmt: skip
+
+# Python versions. We amend version_info with one more value, a zero if an
+# official version, or 1 if built from source beyond an official version.
+# Only use sys.version_info directly where tools like mypy need it to understand
+# version-specfic code, otherwise use PYVERSION.
+PYVERSION = sys.version_info + (int(platform.python_version()[-1] == "+"),)
+
+if PYPY:
+    # Minimum now is 7.3.16
+    PYPYVERSION = tuple(sys.pypy_version_info)  # type: ignore[attr-defined]
+else:
+    PYPYVERSION = (0,)
+
+# Do we have a GIL?
+GIL = getattr(sys, "_is_gil_enabled", lambda: True)()
+
+# Do we ship compiled coveragepy wheels for this version?
+SHIPPING_WHEELS = CPYTHON and PYVERSION[:2] <= (3, 14)
+
+# Should we default to sys.monitoring?
+SYSMON_DEFAULT = CPYTHON and PYVERSION >= (3, 14)
+
+
+# Python behavior.
+class PYBEHAVIOR:
+    """Flags indicating this Python's behavior."""
+
+    # When leaving a with-block, do we visit the with-line exactly,
+    # or the context managers in inner-out order?
+    #
+    # mwith.py:
+    #    with (
+    #        open("/tmp/one", "w") as f2,
+    #        open("/tmp/two", "w") as f3,
+    #        open("/tmp/three", "w") as f4,
+    #    ):
+    #        print("hello 6")
+    #
+    # % python3.11 -m trace -t mwith.py | grep mwith
+    #  --- modulename: mwith, funcname: <module>
+    # mwith.py(2):     open("/tmp/one", "w") as f2,
+    # mwith.py(1): with (
+    # mwith.py(2):     open("/tmp/one", "w") as f2,
+    # mwith.py(3):     open("/tmp/two", "w") as f3,
+    # mwith.py(1): with (
+    # mwith.py(3):     open("/tmp/two", "w") as f3,
+    # mwith.py(4):     open("/tmp/three", "w") as f4,
+    # mwith.py(1): with (
+    # mwith.py(4):     open("/tmp/three", "w") as f4,
+    # mwith.py(6):     print("hello 6")
+    # mwith.py(1): with (
+    #
+    # % python3.12 -m trace -t mwith.py | grep mwith
+    #  --- modulename: mwith, funcname: <module>
+    # mwith.py(2):      open("/tmp/one", "w") as f2,
+    # mwith.py(3):      open("/tmp/two", "w") as f3,
+    # mwith.py(4):      open("/tmp/three", "w") as f4,
+    # mwith.py(6):      print("hello 6")
+    # mwith.py(4):      open("/tmp/three", "w") as f4,
+    # mwith.py(3):      open("/tmp/two", "w") as f3,
+    # mwith.py(2):      open("/tmp/one", "w") as f2,
+
+    exit_with_through_ctxmgr = (PYVERSION >= (3, 12, 6))  # fmt: skip
+
+    # f-strings are parsed as code, pep 701
+    fstring_syntax = (PYVERSION >= (3, 12))  # fmt: skip
+
+    # PEP669 Low Impact Monitoring: https://peps.python.org/pep-0669/
+    pep669: Final[bool] = bool(getattr(sys, "monitoring", None))
+
+    # Where does frame.f_lasti point when yielding from a generator?
+    # It used to point at the YIELD, in 3.13 it points at the RESUME,
+    # then it went back to the YIELD.
+    # https://github.com/python/cpython/issues/113728
+    lasti_is_yield = (PYVERSION[:2] != (3, 13))  # fmt: skip
+
+    # PEP649 and PEP749: Deferred annotations
+    deferred_annotations = (PYVERSION >= (3, 14))  # fmt: skip
+
+    # Does sys.monitoring support BRANCH_RIGHT and BRANCH_LEFT?  The names
+    # were added in early 3.14 alphas, but didn't work entirely correctly until
+    # after 3.14.0a5.
+    branch_right_left = pep669 and (PYVERSION > (3, 14, 0, "alpha", 5, 0))
+
+
+# Coverage.py specifics, about testing scenarios. See tests/testenv.py also.
+
+# Are we coverage-measuring ourselves?
+METACOV = os.getenv("COVERAGE_COVERAGE") is not None
+
+# Are we running our test suite?
+# Even when running tests, you can use COVERAGE_TESTING=0 to disable the
+# test-specific behavior like AST checking.
+TESTING = os.getenv("COVERAGE_TESTING") == "True"
+
+
+def debug_info() -> Iterable[tuple[str, Any]]:
+    """Return a list of (name, value) pairs for printing debug information."""
+    info = [
+        (name, value)
+        for name, value in globals().items()
+        if not name.startswith("_") and name not in _UNINTERESTING_GLOBALS
+    ]
+    info += [
+        (name, value) for name, value in PYBEHAVIOR.__dict__.items() if not name.startswith("_")
+    ]
+    return sorted(info)

calculator/lib/python3.12/site-packages/coverage/exceptions.py

@@ -0,0 +1,85 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Exceptions coverage.py can raise."""
+
+from __future__ import annotations
+
+from typing import Any
+
+
+class CoverageException(Exception):
+    """The base class of all exceptions raised by Coverage.py."""
+
+    def __init__(
+        self,
+        *args: Any,
+        slug: str | None = None,
+    ) -> None:
+        """Create an exception.
+
+        Args:
+            slug: A short string identifying the exception, will be used for
+                linking to documentation.
+        """
+
+        super().__init__(*args)
+        self.slug = slug
+
+
+class ConfigError(CoverageException):
+    """A problem with a config file, or a value in one."""
+
+    pass
+
+
+class DataError(CoverageException):
+    """An error in using a data file."""
+
+    pass
+
+
+class NoDataError(CoverageException):
+    """We didn't have data to work with."""
+
+    pass
+
+
+class NoSource(CoverageException):
+    """We couldn't find the source for a module."""
+
+    pass
+
+
+class NoCode(NoSource):
+    """We couldn't find any code at all."""
+
+    pass
+
+
+class NotPython(CoverageException):
+    """A source file turned out not to be parsable Python."""
+
+    pass
+
+
+class PluginError(CoverageException):
+    """A plugin misbehaved."""
+
+    pass
+
+
+class _ExceptionDuringRun(CoverageException):
+    """An exception happened while running customer code.
+
+    Construct it with three arguments, the values from `sys.exc_info`.
+
+    """
+
+    pass
+
+
+class CoverageWarning(Warning):
+    """A warning from Coverage.py."""
+
+    pass

calculator/lib/python3.12/site-packages/coverage/execfile.py

@@ -0,0 +1,329 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Execute files of Python code."""
+
+from __future__ import annotations
+
+import importlib.machinery
+import importlib.util
+import inspect
+import marshal
+import os
+import struct
+import sys
+from importlib.machinery import ModuleSpec
+from types import CodeType, ModuleType
+from typing import Any
+
+from coverage.exceptions import CoverageException, NoCode, NoSource, _ExceptionDuringRun
+from coverage.files import canonical_filename, python_reported_file
+from coverage.misc import isolate_module
+from coverage.python import get_python_source
+
+os = isolate_module(os)
+
+
+PYC_MAGIC_NUMBER = importlib.util.MAGIC_NUMBER
+
+
+class DummyLoader:
+    """A shim for the pep302 __loader__, emulating pkgutil.ImpLoader.
+
+    Currently only implements the .fullname attribute
+    """
+
+    def __init__(self, fullname: str, *_args: Any) -> None:
+        self.fullname = fullname
+
+
+def find_module(
+    modulename: str,
+) -> tuple[str | None, str, ModuleSpec]:
+    """Find the module named `modulename`.
+
+    Returns the file path of the module, the name of the enclosing
+    package, and the spec.
+    """
+    try:
+        spec = importlib.util.find_spec(modulename)
+    except ImportError as err:
+        raise NoSource(str(err)) from err
+    if not spec:
+        raise NoSource(f"No module named {modulename!r}")
+    pathname = spec.origin
+    packagename = spec.name
+    if spec.submodule_search_locations:
+        mod_main = modulename + ".__main__"
+        spec = importlib.util.find_spec(mod_main)
+        if not spec:
+            raise NoSource(
+                f"No module named {mod_main}; "
+                + f"{modulename!r} is a package and cannot be directly executed",
+            )
+        pathname = spec.origin
+        packagename = spec.name
+    packagename = packagename.rpartition(".")[0]
+    return pathname, packagename, spec
+
+
+class PyRunner:
+    """Multi-stage execution of Python code.
+
+    This is meant to emulate real Python execution as closely as possible.
+
+    """
+
+    def __init__(self, args: list[str], as_module: bool = False) -> None:
+        self.args = args
+        self.as_module = as_module
+
+        self.arg0 = args[0]
+        self.package: str | None = None
+        self.modulename: str | None = None
+        self.pathname: str | None = None
+        self.loader: DummyLoader | None = None
+        self.spec: ModuleSpec | None = None
+
+    def prepare(self) -> None:
+        """Set sys.path properly.
+
+        This needs to happen before any importing, and without importing anything.
+        """
+        path0: str | None
+        if getattr(sys.flags, "safe_path", False):
+            # See https://docs.python.org/3/using/cmdline.html#cmdoption-P
+            path0 = None
+        elif self.as_module:
+            path0 = os.getcwd()
+        elif os.path.isdir(self.arg0):
+            # Running a directory means running the __main__.py file in that
+            # directory.
+            path0 = self.arg0
+        else:
+            path0 = os.path.abspath(os.path.dirname(os.path.realpath(self.arg0)))
+
+        if os.path.isdir(sys.path[0]):
+            # sys.path fakery.  If we are being run as a command, then sys.path[0]
+            # is the directory of the "coverage" script.  If this is so, replace
+            # sys.path[0] with the directory of the file we're running, or the
+            # current directory when running modules.  If it isn't so, then we
+            # don't know what's going on, and just leave it alone.
+            top_file = inspect.stack()[-1][0].f_code.co_filename
+            sys_path_0_abs = os.path.abspath(sys.path[0])
+            top_file_dir_abs = os.path.abspath(os.path.dirname(top_file))
+            sys_path_0_abs = canonical_filename(sys_path_0_abs)
+            top_file_dir_abs = canonical_filename(top_file_dir_abs)
+            if sys_path_0_abs != top_file_dir_abs:
+                path0 = None
+
+        else:
+            # sys.path[0] is a file. Is the next entry the directory containing
+            # that file?
+            if sys.path[1] == os.path.dirname(sys.path[0]):
+                # Can it be right to always remove that?
+                del sys.path[1]
+
+        if path0 is not None:
+            sys.path[0] = python_reported_file(path0)
+
+    def _prepare2(self) -> None:
+        """Do more preparation to run Python code.
+
+        Includes finding the module to run and adjusting sys.argv[0].
+        This method is allowed to import code.
+
+        """
+        if self.as_module:
+            self.modulename = self.arg0
+            pathname, self.package, self.spec = find_module(self.modulename)
+            if self.spec is not None:
+                self.modulename = self.spec.name
+            self.loader = DummyLoader(self.modulename)
+            assert pathname is not None
+            self.pathname = os.path.abspath(pathname)
+            self.args[0] = self.arg0 = self.pathname
+        elif os.path.isdir(self.arg0):
+            # Running a directory means running the __main__.py file in that
+            # directory.
+            for ext in [".py", ".pyc", ".pyo"]:
+                try_filename = os.path.join(self.arg0, f"__main__{ext}")
+                # 3.8.10 changed how files are reported when running a
+                # directory.
+                try_filename = os.path.abspath(try_filename)
+                if os.path.exists(try_filename):
+                    self.arg0 = try_filename
+                    break
+            else:
+                raise NoSource(f"Can't find '__main__' module in '{self.arg0}'")
+
+            # Make a spec. I don't know if this is the right way to do it.
+            try_filename = python_reported_file(try_filename)
+            self.spec = importlib.machinery.ModuleSpec("__main__", None, origin=try_filename)
+            self.spec.has_location = True
+            self.package = ""
+            self.loader = DummyLoader("__main__")
+        else:
+            self.loader = DummyLoader("__main__")
+
+        self.arg0 = python_reported_file(self.arg0)
+
+    def run(self) -> None:
+        """Run the Python code!"""
+
+        self._prepare2()
+
+        # Create a module to serve as __main__
+        main_mod = ModuleType("__main__")
+
+        from_pyc = self.arg0.endswith((".pyc", ".pyo"))
+        main_mod.__file__ = self.arg0
+        if from_pyc:
+            main_mod.__file__ = main_mod.__file__[:-1]
+        if self.package is not None:
+            main_mod.__package__ = self.package
+        main_mod.__loader__ = self.loader  # type: ignore[assignment]
+        if self.spec is not None:
+            main_mod.__spec__ = self.spec
+
+        main_mod.__builtins__ = sys.modules["builtins"]  # type: ignore[attr-defined]
+
+        sys.modules["__main__"] = main_mod
+
+        # Set sys.argv properly.
+        sys.argv = self.args
+
+        try:
+            # Make a code object somehow.
+            if from_pyc:
+                code = make_code_from_pyc(self.arg0)
+            else:
+                code = make_code_from_py(self.arg0)
+        except CoverageException:
+            raise
+        except Exception as exc:
+            msg = f"Couldn't run '{self.arg0}' as Python code: {exc.__class__.__name__}: {exc}"
+            raise CoverageException(msg) from exc
+
+        # Execute the code object.
+        # Return to the original directory in case the test code exits in
+        # a non-existent directory.
+        cwd = os.getcwd()
+        try:
+            exec(code, main_mod.__dict__)
+        except SystemExit:  # pylint: disable=try-except-raise
+            # The user called sys.exit().  Just pass it along to the upper
+            # layers, where it will be handled.
+            raise
+        except Exception:
+            # Something went wrong while executing the user code.
+            # Get the exc_info, and pack them into an exception that we can
+            # throw up to the outer loop.  We peel one layer off the traceback
+            # so that the coverage.py code doesn't appear in the final printed
+            # traceback.
+            typ, err, tb = sys.exc_info()
+            assert typ is not None
+            assert err is not None
+            assert tb is not None
+
+            # PyPy3 weirdness.  If I don't access __context__, then somehow it
+            # is non-None when the exception is reported at the upper layer,
+            # and a nested exception is shown to the user.  This getattr fixes
+            # it somehow? https://bitbucket.org/pypy/pypy/issue/1903
+            getattr(err, "__context__", None)
+
+            # Call the excepthook.
+            try:
+                assert err.__traceback__ is not None
+                err.__traceback__ = err.__traceback__.tb_next
+                sys.excepthook(typ, err, tb.tb_next)
+            except SystemExit:  # pylint: disable=try-except-raise
+                raise
+            except Exception as exc:
+                # Getting the output right in the case of excepthook
+                # shenanigans is kind of involved.
+                sys.stderr.write("Error in sys.excepthook:\n")
+                typ2, err2, tb2 = sys.exc_info()
+                assert typ2 is not None
+                assert err2 is not None
+                assert tb2 is not None
+                err2.__suppress_context__ = True
+                assert err2.__traceback__ is not None
+                err2.__traceback__ = err2.__traceback__.tb_next
+                sys.__excepthook__(typ2, err2, tb2.tb_next)
+                sys.stderr.write("\nOriginal exception was:\n")
+                raise _ExceptionDuringRun(typ, err, tb.tb_next) from exc
+            else:
+                sys.exit(1)
+        finally:
+            os.chdir(cwd)
+
+
+def run_python_module(args: list[str]) -> None:
+    """Run a Python module, as though with ``python -m name args...``.
+
+    `args` is the argument array to present as sys.argv, including the first
+    element naming the module being executed.
+
+    This is a helper for tests, to encapsulate how to use PyRunner.
+
+    """
+    runner = PyRunner(args, as_module=True)
+    runner.prepare()
+    runner.run()
+
+
+def run_python_file(args: list[str]) -> None:
+    """Run a Python file as if it were the main program on the command line.
+
+    `args` is the argument array to present as sys.argv, including the first
+    element naming the file being executed.  `package` is the name of the
+    enclosing package, if any.
+
+    This is a helper for tests, to encapsulate how to use PyRunner.
+
+    """
+    runner = PyRunner(args, as_module=False)
+    runner.prepare()
+    runner.run()
+
+
+def make_code_from_py(filename: str) -> CodeType:
+    """Get source from `filename` and make a code object of it."""
+    try:
+        source = get_python_source(filename)
+    except (OSError, NoSource) as exc:
+        raise NoSource(f"No file to run: '{filename}'") from exc
+
+    code = compile(source, filename, mode="exec", dont_inherit=True)
+    return code
+
+
+def make_code_from_pyc(filename: str) -> CodeType:
+    """Get a code object from a .pyc file."""
+    try:
+        fpyc = open(filename, "rb")
+    except OSError as exc:
+        raise NoCode(f"No file to run: '{filename}'") from exc
+
+    with fpyc:
+        # First four bytes are a version-specific magic number.  It has to
+        # match or we won't run the file.
+        magic = fpyc.read(4)
+        if magic != PYC_MAGIC_NUMBER:
+            raise NoCode(f"Bad magic number in .pyc file: {magic!r} != {PYC_MAGIC_NUMBER!r}")
+
+        flags = struct.unpack("<L", fpyc.read(4))[0]
+        hash_based = flags & 0x01
+        if hash_based:
+            fpyc.read(8)  # Skip the hash.
+        else:
+            # Skip the junk in the header that we don't need.
+            fpyc.read(4)  # Skip the moddate.
+            fpyc.read(4)  # Skip the size.
+
+        # The rest of the file is the code object we want.
+        code = marshal.load(fpyc)
+        assert isinstance(code, CodeType)
+
+    return code

calculator/lib/python3.12/site-packages/coverage/files.py

@@ -0,0 +1,585 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""File wrangling."""
+
+from __future__ import annotations
+
+import abc
+import hashlib
+import ntpath
+import os
+import os.path
+import posixpath
+import re
+import sys
+from collections.abc import Callable, Iterable
+
+from coverage import env
+from coverage.exceptions import ConfigError
+from coverage.misc import human_sorted, isolate_module, join_regex, plural
+
+os = isolate_module(os)
+
+
+RELATIVE_DIR: str = ""
+CANONICAL_FILENAME_CACHE: dict[str, str] = {}
+
+
+def set_relative_directory() -> None:
+    """Set the directory that `relative_filename` will be relative to."""
+    global RELATIVE_DIR, CANONICAL_FILENAME_CACHE
+
+    # The current directory
+    abs_curdir = abs_file(os.curdir)
+    if not abs_curdir.endswith(os.sep):
+        # Suffix with separator only if not at the system root
+        abs_curdir = abs_curdir + os.sep
+
+    # The absolute path to our current directory.
+    RELATIVE_DIR = os.path.normcase(abs_curdir)
+
+    # Cache of results of calling the canonical_filename() method, to
+    # avoid duplicating work.
+    CANONICAL_FILENAME_CACHE = {}
+
+
+def relative_directory() -> str:
+    """Return the directory that `relative_filename` is relative to."""
+    return RELATIVE_DIR
+
+
+def relative_filename(filename: str) -> str:
+    """Return the relative form of `filename`.
+
+    The file name will be relative to the current directory when the
+    `set_relative_directory` was called.
+
+    """
+    fnorm = os.path.normcase(filename)
+    if fnorm.startswith(RELATIVE_DIR):
+        filename = filename[len(RELATIVE_DIR) :]
+    return filename
+
+
+def canonical_filename(filename: str) -> str:
+    """Return a canonical file name for `filename`.
+
+    An absolute path with no redundant components and normalized case.
+
+    """
+    if filename not in CANONICAL_FILENAME_CACHE:
+        cf = filename
+        if not os.path.isabs(filename):
+            for path in [os.curdir] + sys.path:
+                if path is None:
+                    continue  # type: ignore[unreachable]
+                f = os.path.join(path, filename)
+                try:
+                    exists = os.path.exists(f)
+                except UnicodeError:
+                    exists = False
+                if exists:
+                    cf = f
+                    break
+        cf = abs_file(cf)
+        CANONICAL_FILENAME_CACHE[filename] = cf
+    return CANONICAL_FILENAME_CACHE[filename]
+
+
+def flat_rootname(filename: str) -> str:
+    """A base for a flat file name to correspond to this file.
+
+    Useful for writing files about the code where you want all the files in
+    the same directory, but need to differentiate same-named files from
+    different directories.
+
+    For example, the file a/b/c.py will return 'z_86bbcbe134d28fd2_c_py'
+
+    """
+    dirname, basename = ntpath.split(filename)
+    if dirname:
+        fp = hashlib.new(
+            "sha3_256",
+            dirname.encode("UTF-8"),
+            usedforsecurity=False,
+        ).hexdigest()[:16]
+        prefix = f"z_{fp}_"
+    else:
+        prefix = ""
+    return prefix + basename.replace(".", "_")
+
+
+if env.WINDOWS:
+    _ACTUAL_PATH_CACHE: dict[str, str] = {}
+    _ACTUAL_PATH_LIST_CACHE: dict[str, list[str]] = {}
+
+    def actual_path(path: str) -> str:
+        """Get the actual path of `path`, including the correct case."""
+        if path in _ACTUAL_PATH_CACHE:
+            return _ACTUAL_PATH_CACHE[path]
+
+        head, tail = os.path.split(path)
+        if not tail:
+            # This means head is the drive spec: normalize it.
+            actpath = head.upper()
+        elif not head:
+            actpath = tail
+        else:
+            head = actual_path(head)
+            if head in _ACTUAL_PATH_LIST_CACHE:
+                files = _ACTUAL_PATH_LIST_CACHE[head]
+            else:
+                try:
+                    files = os.listdir(head)
+                except Exception:
+                    # This will raise OSError, or this bizarre TypeError:
+                    # https://bugs.python.org/issue1776160
+                    files = []
+                _ACTUAL_PATH_LIST_CACHE[head] = files
+            normtail = os.path.normcase(tail)
+            for f in files:
+                if os.path.normcase(f) == normtail:
+                    tail = f
+                    break
+            actpath = os.path.join(head, tail)
+        _ACTUAL_PATH_CACHE[path] = actpath
+        return actpath
+
+else:
+
+    def actual_path(path: str) -> str:
+        """The actual path for non-Windows platforms."""
+        return path
+
+
+def abs_file(path: str) -> str:
+    """Return the absolute normalized form of `path`."""
+    return actual_path(os.path.abspath(os.path.realpath(path)))
+
+
+def zip_location(filename: str) -> tuple[str, str] | None:
+    """Split a filename into a zipfile / inner name pair.
+
+    Only return a pair if the zipfile exists.  No check is made if the inner
+    name is in the zipfile.
+
+    """
+    for ext in [".zip", ".whl", ".egg", ".pex", ".par"]:
+        zipbase, extension, inner = filename.partition(ext + sep(filename))
+        if extension:
+            zipfile = zipbase + ext
+            if os.path.exists(zipfile):
+                return zipfile, inner
+    return None
+
+
+def source_exists(path: str) -> bool:
+    """Determine if a source file path exists."""
+    if os.path.exists(path):
+        return True
+
+    if zip_location(path):
+        # If zip_location returns anything, then it's a zipfile that
+        # exists. That's good enough for us.
+        return True
+
+    return False
+
+
+def python_reported_file(filename: str) -> str:
+    """Return the string as Python would describe this file name."""
+    return os.path.abspath(filename)
+
+
+def isabs_anywhere(filename: str) -> bool:
+    """Is `filename` an absolute path on any OS?"""
+    return ntpath.isabs(filename) or posixpath.isabs(filename)
+
+
+def prep_patterns(patterns: Iterable[str]) -> list[str]:
+    """Prepare the file patterns for use in a `GlobMatcher`.
+
+    If a pattern starts with a wildcard, it is used as a pattern
+    as-is.  If it does not start with a wildcard, then it is made
+    absolute with the current directory.
+
+    If `patterns` is None, an empty list is returned.
+
+    """
+    prepped = []
+    for p in patterns or []:
+        prepped.append(p)
+        if not p.startswith(("*", "?")):
+            prepped.append(abs_file(p))
+    return prepped
+
+
+DebugFn = Callable[[str], None] | None
+
+
+class Matcher(abc.ABC):
+    """Common behavior for matchers."""
+
+    def __init__(self, strs: list[str], name: str, caption: str, debug: DebugFn) -> None:
+        self.strs = strs
+        self.name = name
+        if debug:
+            debug(f"{caption} matching {self}")
+            for inf in self.info():
+                debug(f"    {inf}")
+
+    def __str__(self) -> str:
+        n = len(self.strs)
+        return f"{self.__class__.__name__} {self.name!r} {plural(n, 'item')}"
+
+    def __repr__(self) -> str:
+        return f"<{self.__class__.__name__} {self.name} {self.strs!r}>"
+
+    @abc.abstractmethod
+    def match(self, s: str) -> bool:
+        """Does this string match?"""
+
+    def info(self) -> list[str]:
+        """A list of strings for displaying when dumping state."""
+        return self.strs
+
+
+class TreeMatcher(Matcher):
+    """A matcher for files in a tree.
+
+    Construct with a list of paths, either files or directories. Paths match
+    with the `match` method if they are one of the files, or if they are
+    somewhere in a subtree rooted at one of the directories.
+    """
+
+    def __init__(
+        self,
+        paths: Iterable[str],
+        name: str = "unknown",
+        caption: str = "",
+        debug: DebugFn = None,
+    ) -> None:
+        paths_list = list(paths)
+        self.original_paths = human_sorted(paths_list)
+        super().__init__(self.original_paths, name=name, caption=caption, debug=debug)
+        self.paths = []
+        for p in paths_list:
+            ap = abs_file(p)
+            if ap != p and debug:
+                debug(f"        Normalized {p!r} to {ap!r}")
+            self.paths.append(ap)
+
+    def match(self, fpath: str) -> bool:  # pylint: disable=arguments-renamed
+        """Does `fpath` indicate a file in one of our trees?"""
+        fpath = abs_file(fpath)
+        for p in self.paths:
+            if fpath.startswith(p):
+                if fpath == p:
+                    # This is the same file!
+                    return True
+                if fpath[len(p)] == os.sep:
+                    # This is a file in the directory
+                    return True
+        return False
+
+
+class ModuleMatcher(Matcher):
+    """A matcher for modules in a tree."""
+
+    def __init__(
+        self,
+        module_names: Iterable[str],
+        name: str = "unknown",
+        caption: str = "",
+        debug: DebugFn = None,
+    ) -> None:
+        self.modules = list(module_names)
+        super().__init__(self.modules, name=name, caption=caption, debug=debug)
+
+    def match(self, module_name: str) -> bool:  # pylint: disable=arguments-renamed
+        """Does `module_name` indicate a module in one of our packages?"""
+        if not module_name:
+            return False
+
+        for m in self.modules:
+            if module_name.startswith(m):
+                if module_name == m:
+                    return True
+                if module_name[len(m)] == ".":
+                    # This is a module in the package
+                    return True
+
+        return False
+
+
+class GlobMatcher(Matcher):
+    """A matcher for files by file name pattern."""
+
+    def __init__(
+        self,
+        pats: Iterable[str],
+        name: str = "unknown",
+        caption: str = "",
+        debug: DebugFn = None,
+    ) -> None:
+        self.pats = list(pats)
+        super().__init__(self.pats, name=name, caption=caption, debug=debug)
+        self.re = globs_to_regex(self.pats, case_insensitive=env.WINDOWS)
+
+    def match(self, fpath: str) -> bool:  # pylint: disable=arguments-renamed
+        """Does `fpath` match one of our file name patterns?"""
+        return self.re.match(fpath) is not None
+
+
+def sep(s: str) -> str:
+    """Find the path separator used in this string, or os.sep if none."""
+    if sep_match := re.search(r"[\\/]", s):
+        the_sep = sep_match[0]
+    else:
+        the_sep = os.sep
+    return the_sep
+
+
+# Tokenizer for _glob_to_regex.
+# None as a sub means disallowed.
+# fmt: off
+G2RX_TOKENS = [(re.compile(rx), sub) for rx, sub in [
+    (r"\*\*\*+", None),             # Can't have ***
+    (r"[^/]+\*\*+", None),          # Can't have x**
+    (r"\*\*+[^/]+", None),          # Can't have **x
+    (r"\*\*/\*\*", None),           # Can't have **/**
+    (r"^\*+/", r"(.*[/\\\\])?"),    # ^*/ matches any prefix-slash, or nothing.
+    (r"/\*+$", r"[/\\\\].*"),       # /*$ matches any slash-suffix.
+    (r"\*\*/", r"(.*[/\\\\])?"),    # **/ matches any subdirs, including none
+    (r"/", r"[/\\\\]"),             # / matches either slash or backslash
+    (r"\*", r"[^/\\\\]*"),          # * matches any number of non slash-likes
+    (r"\?", r"[^/\\\\]"),           # ? matches one non slash-like
+    (r"\[.*?\]", r"\g<0>"),         # [a-f] matches [a-f]
+    (r"[a-zA-Z0-9_-]+", r"\g<0>"),  # word chars match themselves
+    (r"[\[\]]", None),              # Can't have single square brackets
+    (r".", r"\\\g<0>"),             # Anything else is escaped to be safe
+]]
+# fmt: on
+
+
+def _glob_to_regex(pattern: str) -> str:
+    """Convert a file-path glob pattern into a regex."""
+    # Turn all backslashes into slashes to simplify the tokenizer.
+    pattern = pattern.replace("\\", "/")
+    if "/" not in pattern:
+        pattern = f"**/{pattern}"
+    path_rx = []
+    pos = 0
+    while pos < len(pattern):
+        for rx, sub in G2RX_TOKENS:  # pragma: always breaks
+            if m := rx.match(pattern, pos=pos):
+                if sub is None:
+                    raise ConfigError(f"File pattern can't include {m[0]!r}")
+                path_rx.append(m.expand(sub))
+                pos = m.end()
+                break
+    return "".join(path_rx)
+
+
+def globs_to_regex(
+    patterns: Iterable[str],
+    case_insensitive: bool = False,
+    partial: bool = False,
+) -> re.Pattern[str]:
+    """Convert glob patterns to a compiled regex that matches any of them.
+
+    Slashes are always converted to match either slash or backslash, for
+    Windows support, even when running elsewhere.
+
+    If the pattern has no slash or backslash, then it is interpreted as
+    matching a file name anywhere it appears in the tree.  Otherwise, the glob
+    pattern must match the whole file path.
+
+    If `partial` is true, then the pattern will match if the target string
+    starts with the pattern. Otherwise, it must match the entire string.
+
+    Returns: a compiled regex object.  Use the .match method to compare target
+    strings.
+
+    """
+    flags = 0
+    if case_insensitive:
+        flags |= re.IGNORECASE
+    rx = join_regex(map(_glob_to_regex, patterns))
+    if not partial:
+        rx = rf"(?:{rx})\Z"
+    compiled = re.compile(rx, flags=flags)
+    return compiled
+
+
+class PathAliases:
+    """A collection of aliases for paths.
+
+    When combining data files from remote machines, often the paths to source
+    code are different, for example, due to OS differences, or because of
+    serialized checkouts on continuous integration machines.
+
+    A `PathAliases` object tracks a list of pattern/result pairs, and can
+    map a path through those aliases to produce a unified path.
+
+    """
+
+    def __init__(
+        self,
+        debugfn: Callable[[str], None] | None = None,
+        relative: bool = False,
+    ) -> None:
+        # A list of (original_pattern, regex, result)
+        self.aliases: list[tuple[str, re.Pattern[str], str]] = []
+        self.debugfn = debugfn or (lambda msg: 0)
+        self.relative = relative
+        self.pprinted = False
+
+    def pprint(self) -> None:
+        """Dump the important parts of the PathAliases, for debugging."""
+        self.debugfn(f"Aliases (relative={self.relative}):")
+        for original_pattern, regex, result in self.aliases:
+            self.debugfn(f" Rule: {original_pattern!r} -> {result!r} using regex {regex.pattern!r}")
+
+    def add(self, pattern: str, result: str) -> None:
+        """Add the `pattern`/`result` pair to the list of aliases.
+
+        `pattern` is an `glob`-style pattern.  `result` is a simple
+        string.  When mapping paths, if a path starts with a match against
+        `pattern`, then that match is replaced with `result`.  This models
+        isomorphic source trees being rooted at different places on two
+        different machines.
+
+        `pattern` can't end with a wildcard component, since that would
+        match an entire tree, and not just its root.
+
+        """
+        original_pattern = pattern
+        pattern_sep = sep(pattern)
+
+        if len(pattern) > 1:
+            pattern = pattern.rstrip(r"\/")
+
+        # The pattern can't end with a wildcard component.
+        if pattern.endswith("*"):
+            raise ConfigError("Pattern must not end with wildcards.")
+
+        # The pattern is meant to match a file path.  Let's make it absolute
+        # unless it already is, or is meant to match any prefix.
+        if not self.relative:
+            if not pattern.startswith("*") and not isabs_anywhere(pattern + pattern_sep):
+                pattern = abs_file(pattern)
+        if not pattern.endswith(pattern_sep):
+            pattern += pattern_sep
+
+        # Make a regex from the pattern.
+        regex = globs_to_regex([pattern], case_insensitive=True, partial=True)
+
+        # Normalize the result: it must end with a path separator.
+        result_sep = sep(result)
+        result = result.rstrip(r"\/") + result_sep
+        self.aliases.append((original_pattern, regex, result))
+
+    def map(self, path: str, exists: Callable[[str], bool] = source_exists) -> str:
+        """Map `path` through the aliases.
+
+        `path` is checked against all of the patterns.  The first pattern to
+        match is used to replace the root of the path with the result root.
+        Only one pattern is ever used.  If no patterns match, `path` is
+        returned unchanged.
+
+        The separator style in the result is made to match that of the result
+        in the alias.
+
+        `exists` is a function to determine if the resulting path actually
+        exists.
+
+        Returns the mapped path.  If a mapping has happened, this is a
+        canonical path.  If no mapping has happened, it is the original value
+        of `path` unchanged.
+
+        """
+        if not self.pprinted:
+            self.pprint()
+            self.pprinted = True
+
+        for original_pattern, regex, result in self.aliases:
+            if m := regex.match(path):
+                new = path.replace(m[0], result)
+                new = new.replace(sep(path), sep(result))
+                if not self.relative:
+                    new = canonical_filename(new)
+                dot_start = result.startswith(("./", ".\\")) and len(result) > 2
+                if new.startswith(("./", ".\\")) and not dot_start:
+                    new = new[2:]
+                if not exists(new):
+                    self.debugfn(
+                        f"Rule {original_pattern!r} changed {path!r} to {new!r} "
+                        + "which doesn't exist, continuing",
+                    )
+                    continue
+                self.debugfn(
+                    f"Matched path {path!r} to rule {original_pattern!r} -> {result!r}, "
+                    + f"producing {new!r}",
+                )
+                return new
+
+        # If we get here, no pattern matched.
+
+        if self.relative:
+            path = relative_filename(path)
+
+        if self.relative and not isabs_anywhere(path):
+            # Auto-generate a pattern to implicitly match relative files
+            parts = re.split(r"[/\\]", path)
+            if len(parts) > 1:
+                dir1 = parts[0]
+                pattern = f"*/{dir1}"
+                regex_pat = rf"^(.*[\\/])?{re.escape(dir1)}[\\/]"
+                result = f"{dir1}{os.sep}"
+                # Only add a new pattern if we don't already have this pattern.
+                if not any(p == pattern for p, _, _ in self.aliases):
+                    self.debugfn(
+                        f"Generating rule: {pattern!r} -> {result!r} using regex {regex_pat!r}",
+                    )
+                    self.aliases.append((pattern, re.compile(regex_pat), result))
+                    return self.map(path, exists=exists)
+
+        self.debugfn(f"No rules match, path {path!r} is unchanged")
+        return path
+
+
+def find_python_files(dirname: str, include_namespace_packages: bool) -> Iterable[str]:
+    """Yield all of the importable Python files in `dirname`, recursively.
+
+    To be importable, the files have to be in a directory with a __init__.py,
+    except for `dirname` itself, which isn't required to have one.  The
+    assumption is that `dirname` was specified directly, so the user knows
+    best, but sub-directories are checked for a __init__.py to be sure we only
+    find the importable files.
+
+    If `include_namespace_packages` is True, then the check for __init__.py
+    files is skipped.
+
+    Files with strange characters are skipped, since they couldn't have been
+    imported, and are probably editor side-files.
+
+    """
+    for i, (dirpath, dirnames, filenames) in enumerate(os.walk(dirname)):
+        if not include_namespace_packages:
+            if i > 0 and "__init__.py" not in filenames:
+                # If a directory doesn't have __init__.py, then it isn't
+                # importable and neither are its files
+                del dirnames[:]
+                continue
+        for filename in filenames:
+            # We're only interested in files that look like reasonable Python
+            # files: Must end with .py or .pyw, and must not have certain funny
+            # characters that probably mean they are editor junk.
+            if re.match(r"^[^.#~!$@%^&*()+=,]+\.pyw?$", filename):
+                yield os.path.join(dirpath, filename)
+
+
+# Globally set the relative directory.
+set_relative_directory()

calculator/lib/python3.12/site-packages/coverage/html.py

@@ -0,0 +1,863 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""HTML reporting for coverage.py."""
+
+from __future__ import annotations
+
+import collections
+import dataclasses
+import datetime
+import functools
+import json
+import os
+import re
+import string
+from collections.abc import Iterable
+from dataclasses import dataclass, field
+from typing import TYPE_CHECKING, Any
+
+import coverage
+from coverage.data import CoverageData, add_data_to_hash
+from coverage.exceptions import NoDataError
+from coverage.files import flat_rootname
+from coverage.misc import (
+    Hasher,
+    ensure_dir,
+    file_be_gone,
+    format_local_datetime,
+    human_sorted,
+    isolate_module,
+    plural,
+    stdout_link,
+)
+from coverage.report_core import get_analysis_to_report
+from coverage.results import Analysis, AnalysisNarrower, Numbers
+from coverage.templite import Templite
+from coverage.types import TLineNo, TMorfs
+from coverage.version import __url__
+
+if TYPE_CHECKING:
+    from coverage import Coverage
+    from coverage.plugins import FileReporter
+
+
+os = isolate_module(os)
+
+
+def data_filename(fname: str) -> str:
+    """Return the path to an "htmlfiles" data file of ours."""
+    static_dir = os.path.join(os.path.dirname(__file__), "htmlfiles")
+    static_filename = os.path.join(static_dir, fname)
+    return static_filename
+
+
+def read_data(fname: str) -> str:
+    """Return the contents of a data file of ours."""
+    with open(data_filename(fname), encoding="utf-8") as data_file:
+        return data_file.read()
+
+
+def write_html(fname: str, html: str) -> None:
+    """Write `html` to `fname`, properly encoded."""
+    html = re.sub(r"(\A\s+)|(\s+$)", "", html, flags=re.MULTILINE) + "\n"
+    with open(fname, "wb") as fout:
+        fout.write(html.encode("ascii", "xmlcharrefreplace"))
+
+
+@dataclass
+class LineData:
+    """The data for each source line of HTML output."""
+
+    tokens: list[tuple[str, str]]
+    number: TLineNo
+    category: str
+    contexts: list[str]
+    contexts_label: str
+    context_list: list[str]
+    short_annotations: list[str]
+    long_annotations: list[str]
+    html: str = ""
+    context_str: str | None = None
+    annotate: str | None = None
+    annotate_long: str | None = None
+    css_class: str = ""
+
+
+@dataclass
+class FileData:
+    """The data for each source file of HTML output."""
+
+    relative_filename: str
+    nums: Numbers
+    lines: list[LineData]
+
+
+@dataclass
+class IndexItem:
+    """Information for each index entry, to render an index page."""
+
+    url: str = ""
+    file: str = ""
+    description: str = ""
+    nums: Numbers = field(default_factory=Numbers)
+
+
+@dataclass
+class IndexPage:
+    """Data for each index page."""
+
+    noun: str
+    plural: str
+    filename: str
+    summaries: list[IndexItem]
+    totals: Numbers
+    skipped_covered_count: int
+    skipped_empty_count: int
+
+
+class HtmlDataGeneration:
+    """Generate structured data to be turned into HTML reports."""
+
+    EMPTY = "(empty)"
+
+    def __init__(self, cov: Coverage) -> None:
+        self.coverage = cov
+        self.config = self.coverage.config
+        self.data = self.coverage.get_data()
+        self.has_arcs = self.data.has_arcs()
+        if self.config.show_contexts:
+            if self.data.measured_contexts() == {""}:
+                self.coverage._warn("No contexts were measured")
+        self.data.set_query_contexts(self.config.report_contexts)
+
+    def data_for_file(self, fr: FileReporter, analysis: Analysis) -> FileData:
+        """Produce the data needed for one file's report."""
+        if self.has_arcs:
+            missing_branch_arcs = analysis.missing_branch_arcs()
+            arcs_executed = analysis.arcs_executed
+        else:
+            missing_branch_arcs = {}
+            arcs_executed = []
+
+        if self.config.show_contexts:
+            contexts_by_lineno = self.data.contexts_by_lineno(analysis.filename)
+
+        lines = []
+        branch_stats = analysis.branch_stats()
+        multiline_map = {}
+        if hasattr(fr, "multiline_map"):
+            multiline_map = fr.multiline_map()
+
+        for lineno, tokens in enumerate(fr.source_token_lines(), start=1):
+            # Figure out how to mark this line.
+            category = category2 = ""
+            short_annotations = []
+            long_annotations = []
+
+            if lineno in analysis.excluded:
+                category = "exc"
+            elif lineno in analysis.missing:
+                category = "mis"
+            elif self.has_arcs and lineno in missing_branch_arcs:
+                category = "par"
+                mba = missing_branch_arcs[lineno]
+                if len(mba) == branch_stats[lineno][0]:
+                    # None of the branches were taken from this line.
+                    short_annotations.append("anywhere")
+                    long_annotations.append(
+                        f"line {lineno} didn't jump anywhere: it always raised an exception."
+                    )
+                else:
+                    for b in missing_branch_arcs[lineno]:
+                        if b < 0:
+                            short_annotations.append("exit")
+                        else:
+                            short_annotations.append(str(b))
+                        long_annotations.append(
+                            fr.missing_arc_description(lineno, b, arcs_executed)
+                        )
+            elif lineno in analysis.statements:
+                category = "run"
+            elif first_line := multiline_map.get(lineno):
+                if first_line in analysis.excluded:
+                    category2 = "exc2"
+                elif first_line in analysis.missing:
+                    category2 = "mis2"
+                elif self.has_arcs and first_line in missing_branch_arcs:
+                    category2 = "par2"
+                # I don't understand why this last condition is marked as
+                # partial.  If I add an else with an exception, the exception
+                # is raised.
+                elif first_line in analysis.statements:  # pragma: part covered
+                    category2 = "run2"
+
+            contexts = []
+            contexts_label = ""
+            context_list = []
+            if category and self.config.show_contexts:
+                contexts = human_sorted(c or self.EMPTY for c in contexts_by_lineno.get(lineno, ()))
+                if contexts == [self.EMPTY]:
+                    contexts_label = self.EMPTY
+                else:
+                    contexts_label = f"{len(contexts)} ctx"
+                    context_list = contexts
+
+            lines.append(
+                LineData(
+                    tokens=tokens,
+                    number=lineno,
+                    category=category or category2,
+                    contexts=contexts,
+                    contexts_label=contexts_label,
+                    context_list=context_list,
+                    short_annotations=short_annotations,
+                    long_annotations=long_annotations,
+                )
+            )
+
+        file_data = FileData(
+            relative_filename=fr.relative_filename(),
+            nums=analysis.numbers,
+            lines=lines,
+        )
+
+        return file_data
+
+
+class FileToReport:
+    """A file we're considering reporting."""
+
+    def __init__(self, fr: FileReporter, analysis: Analysis) -> None:
+        self.fr = fr
+        self.analysis = analysis
+        self.rootname = flat_rootname(fr.relative_filename())
+        self.html_filename = self.rootname + ".html"
+        self.prev_html = self.next_html = ""
+
+
+HTML_SAFE = string.ascii_letters + string.digits + "!#$%'()*+,-./:;=?@[]^_`{|}~"
+
+
+@functools.cache
+def encode_int(n: int) -> str:
+    """Create a short HTML-safe string from an integer, using HTML_SAFE."""
+    if n == 0:
+        return HTML_SAFE[0]
+
+    r = []
+    while n:
+        n, t = divmod(n, len(HTML_SAFE))
+        r.append(HTML_SAFE[t])
+    return "".join(r)
+
+
+def copy_with_cache_bust(src: str, dest_dir: str) -> str:
+    """Copy `src` to `dest_dir`, adding a hash to the name.
+
+    Returns the updated destination file name with hash.
+    """
+    with open(src, "rb") as f:
+        text = f.read()
+    h = Hasher()
+    h.update(text)
+    cache_bust = h.hexdigest()[:8]
+    src_base = os.path.basename(src)
+    dest = src_base.replace(".", f"_cb_{cache_bust}.")
+    with open(os.path.join(dest_dir, dest), "wb") as f:
+        f.write(text)
+    return dest
+
+
+class HtmlReporter:
+    """HTML reporting."""
+
+    # These files will be copied from the htmlfiles directory to the output
+    # directory.
+    STATIC_FILES = [
+        "style.css",
+        "coverage_html.js",
+        "keybd_closed.png",
+        "favicon_32.png",
+    ]
+
+    def __init__(self, cov: Coverage) -> None:
+        self.coverage = cov
+        self.config = self.coverage.config
+        self.directory = self.config.html_dir
+
+        self.skip_covered = self.config.html_skip_covered
+        if self.skip_covered is None:
+            self.skip_covered = self.config.skip_covered
+        self.skip_empty = self.config.html_skip_empty
+        if self.skip_empty is None:
+            self.skip_empty = self.config.skip_empty
+
+        title = self.config.html_title
+
+        self.extra_css = bool(self.config.extra_css)
+
+        self.data = self.coverage.get_data()
+        self.has_arcs = self.data.has_arcs()
+
+        self.index_pages: dict[str, IndexPage] = {
+            "file": self.new_index_page("file", "files"),
+        }
+        self.incr = IncrementalChecker(self.directory)
+        self.datagen = HtmlDataGeneration(self.coverage)
+        self.directory_was_empty = False
+        self.first_fr = None
+        self.final_fr = None
+
+        self.template_globals = {
+            # Functions available in the templates.
+            "escape": escape,
+            "pair": pair,
+            "pretty_file": pretty_file,
+            # Constants for this report.
+            "__url__": __url__,
+            "__version__": coverage.__version__,
+            "title": title,
+            "time_stamp": format_local_datetime(datetime.datetime.now()),
+            "extra_css": self.extra_css,
+            "has_arcs": self.has_arcs,
+            "statics": {},
+            # Constants for all reports.
+            # These css classes determine which lines are highlighted by default.
+            "category": {
+                "exc": "exc show_exc",
+                "mis": "mis show_mis",
+                "par": "par run show_par",
+                "run": "run",
+                "exc2": "exc exc2 show_exc",
+                "mis2": "mis mis2 show_mis",
+                "par2": "par par2 ru2 show_par",
+                "run2": "run run2",
+            },
+        }
+        self.index_tmpl = Templite(read_data("index.html"), self.template_globals)
+        self.pyfile_html_source = read_data("pyfile.html")
+        self.source_tmpl = Templite(self.pyfile_html_source, self.template_globals)
+
+    def new_index_page(self, noun: str, plural_noun: str) -> IndexPage:
+        """Create an IndexPage for a kind of region."""
+        return IndexPage(
+            noun=noun,
+            plural=plural_noun,
+            filename="index.html" if noun == "file" else f"{noun}_index.html",
+            summaries=[],
+            totals=Numbers(precision=self.config.precision),
+            skipped_covered_count=0,
+            skipped_empty_count=0,
+        )
+
+    def report(self, morfs: TMorfs) -> float:
+        """Generate an HTML report for `morfs`.
+
+        `morfs` is a list of modules or file names.
+
+        """
+        # Read the status data and check that this run used the same
+        # global data as the last run.
+        self.incr.read()
+        self.incr.check_global_data(self.config, self.pyfile_html_source)
+
+        # Process all the files. For each page we need to supply a link
+        # to the next and previous page.
+        files_to_report = []
+
+        have_data = False
+        for fr, analysis in get_analysis_to_report(self.coverage, morfs):
+            have_data = True
+            ftr = FileToReport(fr, analysis)
+            if self.should_report(analysis, self.index_pages["file"]):
+                files_to_report.append(ftr)
+            else:
+                file_be_gone(os.path.join(self.directory, ftr.html_filename))
+
+        if not have_data:
+            raise NoDataError("No data to report.")
+
+        self.make_directory()
+        self.make_local_static_report_files()
+
+        if files_to_report:
+            for ftr1, ftr2 in zip(files_to_report[:-1], files_to_report[1:]):
+                ftr1.next_html = ftr2.html_filename
+                ftr2.prev_html = ftr1.html_filename
+            files_to_report[0].prev_html = "index.html"
+            files_to_report[-1].next_html = "index.html"
+
+        for ftr in files_to_report:
+            self.write_html_page(ftr)
+            for noun, plural_noun in ftr.fr.code_region_kinds():
+                if noun not in self.index_pages:
+                    self.index_pages[noun] = self.new_index_page(noun, plural_noun)
+
+        # Write the index page.
+        if files_to_report:
+            first_html = files_to_report[0].html_filename
+            final_html = files_to_report[-1].html_filename
+        else:
+            first_html = final_html = "index.html"
+        self.write_file_index_page(first_html, final_html)
+
+        # Write function and class index pages.
+        self.write_region_index_pages(files_to_report)
+
+        return (
+            self.index_pages["file"].totals.n_statements
+            and self.index_pages["file"].totals.pc_covered
+        )
+
+    def make_directory(self) -> None:
+        """Make sure our htmlcov directory exists."""
+        ensure_dir(self.directory)
+        if not os.listdir(self.directory):
+            self.directory_was_empty = True
+
+    def copy_static_file(self, src: str, slug: str = "") -> None:
+        """Copy a static file into the output directory with cache busting."""
+        dest = copy_with_cache_bust(src, self.directory)
+        if not slug:
+            slug = os.path.basename(src).replace(".", "_")
+        self.template_globals["statics"][slug] = dest  # type: ignore
+
+    def make_local_static_report_files(self) -> None:
+        """Make local instances of static files for HTML report."""
+
+        # The files we provide must always be copied.
+        for static in self.STATIC_FILES:
+            self.copy_static_file(data_filename(static))
+
+        # The user may have extra CSS they want copied.
+        if self.extra_css:
+            assert self.config.extra_css is not None
+            self.copy_static_file(self.config.extra_css, slug="extra_css")
+
+        # Only write the .gitignore file if the directory was originally empty.
+        # .gitignore can't be copied from the source tree because if it was in
+        # the source tree, it would stop the static files from being checked in.
+        if self.directory_was_empty:
+            with open(os.path.join(self.directory, ".gitignore"), "w", encoding="utf-8") as fgi:
+                fgi.write("# Created by coverage.py\n*\n")
+
+    def should_report(self, analysis: Analysis, index_page: IndexPage) -> bool:
+        """Determine if we'll report this file or region."""
+        # Get the numbers for this file.
+        nums = analysis.numbers
+        index_page.totals += nums
+
+        if self.skip_covered:
+            # Don't report on 100% files.
+            no_missing_lines = (nums.n_missing == 0)  # fmt: skip
+            no_missing_branches = (nums.n_partial_branches == 0)  # fmt: skip
+            if no_missing_lines and no_missing_branches:
+                index_page.skipped_covered_count += 1
+                return False
+
+        if self.skip_empty:
+            # Don't report on empty files.
+            if nums.n_statements == 0:
+                index_page.skipped_empty_count += 1
+                return False
+
+        return True
+
+    def write_html_page(self, ftr: FileToReport) -> None:
+        """Generate an HTML page for one source file.
+
+        If the page on disk is already correct based on our incremental status
+        checking, then the page doesn't have to be generated, and this function
+        only does page summary bookkeeping.
+
+        """
+        # Find out if the page on disk is already correct.
+        if self.incr.can_skip_file(self.data, ftr.fr, ftr.rootname):
+            self.index_pages["file"].summaries.append(self.incr.index_info(ftr.rootname))
+            return
+
+        # Write the HTML page for this source file.
+        file_data = self.datagen.data_for_file(ftr.fr, ftr.analysis)
+
+        contexts = collections.Counter(c for cline in file_data.lines for c in cline.contexts)
+        context_codes = {y: i for (i, y) in enumerate(x[0] for x in contexts.most_common())}
+        if context_codes:
+            contexts_json = json.dumps(
+                {encode_int(v): k for (k, v) in context_codes.items()},
+                indent=2,
+            )
+        else:
+            contexts_json = None
+
+        for ldata in file_data.lines:
+            # Build the HTML for the line.
+            html_parts = []
+            for tok_type, tok_text in ldata.tokens:
+                if tok_type == "ws":
+                    html_parts.append(escape(tok_text))
+                else:
+                    tok_html = escape(tok_text) or "&nbsp;"
+                    html_parts.append(f'<span class="{tok_type}">{tok_html}</span>')
+            ldata.html = "".join(html_parts)
+            if ldata.context_list:
+                encoded_contexts = [
+                    encode_int(context_codes[c_context]) for c_context in ldata.context_list
+                ]
+                code_width = max(len(ec) for ec in encoded_contexts)
+                ldata.context_str = str(code_width) + "".join(
+                    ec.ljust(code_width) for ec in encoded_contexts
+                )
+            else:
+                ldata.context_str = ""
+
+            if ldata.short_annotations:
+                # 202F is NARROW NO-BREAK SPACE.
+                # 219B is RIGHTWARDS ARROW WITH STROKE.
+                ldata.annotate = ",&nbsp;&nbsp; ".join(
+                    f"{ldata.number}&#x202F;&#x219B;&#x202F;{d}" for d in ldata.short_annotations
+                )
+            else:
+                ldata.annotate = None
+
+            if ldata.long_annotations:
+                longs = ldata.long_annotations
+                # A line can only have two branch destinations. If there were
+                # two missing, we would have written one as "always raised."
+                assert len(longs) == 1, (
+                    f"Had long annotations in {ftr.fr.relative_filename()}: {longs}"
+                )
+                ldata.annotate_long = longs[0]
+            else:
+                ldata.annotate_long = None
+
+            css_classes = []
+            if ldata.category:
+                css_classes.append(
+                    self.template_globals["category"][ldata.category],  # type: ignore[index]
+                )
+            ldata.css_class = " ".join(css_classes) or "pln"
+
+        html_path = os.path.join(self.directory, ftr.html_filename)
+        html = self.source_tmpl.render(
+            {
+                **file_data.__dict__,
+                "contexts_json": contexts_json,
+                "prev_html": ftr.prev_html,
+                "next_html": ftr.next_html,
+            }
+        )
+        write_html(html_path, html)
+
+        # Save this file's information for the index page.
+        index_info = IndexItem(
+            url=ftr.html_filename,
+            file=escape(ftr.fr.relative_filename()),
+            nums=ftr.analysis.numbers,
+        )
+        self.index_pages["file"].summaries.append(index_info)
+        self.incr.set_index_info(ftr.rootname, index_info)
+
+    def write_file_index_page(self, first_html: str, final_html: str) -> None:
+        """Write the file index page for this report."""
+        index_file = self.write_index_page(
+            self.index_pages["file"],
+            first_html=first_html,
+            final_html=final_html,
+        )
+
+        print_href = stdout_link(index_file, f"file://{os.path.abspath(index_file)}")
+        self.coverage._message(f"Wrote HTML report to {print_href}")
+
+        # Write the latest hashes for next time.
+        self.incr.write()
+
+    def write_region_index_pages(self, files_to_report: Iterable[FileToReport]) -> None:
+        """Write the other index pages for this report."""
+        for ftr in files_to_report:
+            region_nouns = [pair[0] for pair in ftr.fr.code_region_kinds()]
+            num_lines = len(ftr.fr.source().splitlines())
+            regions = ftr.fr.code_regions()
+
+            for noun in region_nouns:
+                page_data = self.index_pages[noun]
+
+                outside_lines = set(range(1, num_lines + 1))
+                for region in regions:
+                    if region.kind != noun:
+                        continue
+                    outside_lines -= region.lines
+
+                narrower = AnalysisNarrower(ftr.analysis)
+                narrower.add_regions(r.lines for r in regions if r.kind == noun)
+                narrower.add_regions([outside_lines])
+
+                for region in regions:
+                    if region.kind != noun:
+                        continue
+                    analysis = narrower.narrow(region.lines)
+                    if not self.should_report(analysis, page_data):
+                        continue
+                    sorting_name = region.name.rpartition(".")[-1].lstrip("_")
+                    page_data.summaries.append(
+                        IndexItem(
+                            url=f"{ftr.html_filename}#t{region.start}",
+                            file=escape(ftr.fr.relative_filename()),
+                            description=(
+                                f"<data value='{escape(sorting_name)}'>"
+                                + escape(region.name)
+                                + "</data>"
+                            ),
+                            nums=analysis.numbers,
+                        )
+                    )
+
+                analysis = narrower.narrow(outside_lines)
+                if self.should_report(analysis, page_data):
+                    page_data.summaries.append(
+                        IndexItem(
+                            url=ftr.html_filename,
+                            file=escape(ftr.fr.relative_filename()),
+                            description=(
+                                "<data value=''>"
+                                + f"<span class='no-noun'>(no {escape(noun)})</span>"
+                                + "</data>"
+                            ),
+                            nums=analysis.numbers,
+                        )
+                    )
+
+        for noun, index_page in self.index_pages.items():
+            if noun != "file":
+                self.write_index_page(index_page)
+
+    def write_index_page(self, index_page: IndexPage, **kwargs: str) -> str:
+        """Write an index page specified by `index_page`.
+
+        Returns the filename created.
+        """
+        skipped_covered_msg = skipped_empty_msg = ""
+        if n := index_page.skipped_covered_count:
+            things = plural(n, index_page.noun, index_page.plural)
+            skipped_covered_msg = f"{things} skipped due to complete coverage."
+        if n := index_page.skipped_empty_count:
+            things = plural(n, "empty " + index_page.noun, "empty " + index_page.plural)
+            skipped_empty_msg = f"{things} skipped."
+
+        index_buttons = [
+            {
+                "label": ip.plural.title(),
+                "url": ip.filename if ip.noun != index_page.noun else "",
+                "current": ip.noun == index_page.noun,
+            }
+            for ip in self.index_pages.values()
+        ]
+        render_data = {
+            "regions": index_page.summaries,
+            "totals": index_page.totals,
+            "noun": index_page.noun,
+            "region_noun": index_page.noun if index_page.noun != "file" else "",
+            "skip_covered": self.skip_covered,
+            "skipped_covered_msg": skipped_covered_msg,
+            "skipped_empty_msg": skipped_empty_msg,
+            "first_html": "",
+            "final_html": "",
+            "index_buttons": index_buttons,
+        }
+        render_data.update(kwargs)
+        html = self.index_tmpl.render(render_data)
+
+        index_file = os.path.join(self.directory, index_page.filename)
+        write_html(index_file, html)
+        return index_file
+
+
+@dataclass
+class FileInfo:
+    """Summary of the information from last rendering, to avoid duplicate work."""
+
+    hash: str = ""
+    index: IndexItem = field(default_factory=IndexItem)
+
+
+class IncrementalChecker:
+    """Logic and data to support incremental reporting.
+
+    When generating an HTML report, often only a few of the source files have
+    changed since the last time we made the HTML report.  This means previously
+    created HTML pages can be reused without generating them again, speeding
+    the command.
+
+    This class manages a JSON data file that captures enough information to
+    know whether an HTML page for a .py file needs to be regenerated or not.
+    The data file also needs to store all the information needed to create the
+    entry for the file on the index page so that if the HTML page is reused,
+    the index page can still be created to refer to it.
+
+    The data looks like::
+
+        {
+            "note": "This file is an internal implementation detail ...",
+            // A fixed number indicating the data format.  STATUS_FORMAT
+            "format": 5,
+            // The version of coverage.py
+            "version": "7.4.4",
+            // A hash of a number of global things, including the configuration
+            // settings and the pyfile.html template itself.
+            "globals": "540ee119c15d52a68a53fe6f0897346d",
+            "files": {
+                // An entry for each source file keyed by the flat_rootname().
+                "z_7b071bdc2a35fa80___init___py": {
+                    // Hash of the source, the text of the .py file.
+                    "hash": "e45581a5b48f879f301c0f30bf77a50c",
+                    // Information for the index.html file.
+                    "index": {
+                        "url": "z_7b071bdc2a35fa80___init___py.html",
+                        "file": "cogapp/__init__.py",
+                        "description": "",
+                        // The Numbers for this file.
+                        "nums": { "precision": 2, "n_files": 1, "n_statements": 43, ... }
+                    }
+                },
+                ...
+            }
+        }
+
+    """
+
+    STATUS_FILE = "status.json"
+    STATUS_FORMAT = 5
+    NOTE = (
+        "This file is an internal implementation detail to speed up HTML report"
+        + " generation. Its format can change at any time. You might be looking"
+        + " for the JSON report: https://coverage.rtfd.io/cmd.html#cmd-json"
+    )
+
+    def __init__(self, directory: str) -> None:
+        self.directory = directory
+        self._reset()
+
+    def _reset(self) -> None:
+        """Initialize to empty. Causes all files to be reported."""
+        self.globals = ""
+        self.files: dict[str, FileInfo] = {}
+
+    def read(self) -> None:
+        """Read the information we stored last time."""
+        try:
+            status_file = os.path.join(self.directory, self.STATUS_FILE)
+            with open(status_file, encoding="utf-8") as fstatus:
+                status = json.load(fstatus)
+        except (OSError, ValueError):
+            # Status file is missing or malformed.
+            usable = False
+        else:
+            if status["format"] != self.STATUS_FORMAT:
+                usable = False
+            elif status["version"] != coverage.__version__:
+                usable = False
+            else:
+                usable = True
+
+        if usable:
+            self.files = {}
+            for filename, filedict in status["files"].items():
+                indexdict = filedict["index"]
+                index_item = IndexItem(**indexdict)
+                index_item.nums = Numbers(**indexdict["nums"])
+                fileinfo = FileInfo(
+                    hash=filedict["hash"],
+                    index=index_item,
+                )
+                self.files[filename] = fileinfo
+            self.globals = status["globals"]
+        else:
+            self._reset()
+
+    def write(self) -> None:
+        """Write the current status."""
+        status_file = os.path.join(self.directory, self.STATUS_FILE)
+        status_data = {
+            "note": self.NOTE,
+            "format": self.STATUS_FORMAT,
+            "version": coverage.__version__,
+            "globals": self.globals,
+            "files": {fname: dataclasses.asdict(finfo) for fname, finfo in self.files.items()},
+        }
+        with open(status_file, "w", encoding="utf-8") as fout:
+            json.dump(status_data, fout, separators=(",", ":"))
+
+    def check_global_data(self, *data: Any) -> None:
+        """Check the global data that can affect incremental reporting.
+
+        Pass in whatever global information could affect the content of the
+        HTML pages.  If the global data has changed since last time, this will
+        clear the data so that all files are regenerated.
+
+        """
+        h = Hasher()
+        for d in data:
+            h.update(d)
+        these_globals = h.hexdigest()
+        if self.globals != these_globals:
+            self._reset()
+            self.globals = these_globals
+
+    def can_skip_file(self, data: CoverageData, fr: FileReporter, rootname: str) -> bool:
+        """Can we skip reporting this file?
+
+        `data` is a CoverageData object, `fr` is a `FileReporter`, and
+        `rootname` is the name being used for the file.
+
+        Returns True if the HTML page is fine as-is, False if we need to recreate
+        the HTML page.
+
+        """
+        h = Hasher()
+        h.update(fr.source().encode("utf-8"))
+        add_data_to_hash(data, fr.filename, h)
+        this_hash = h.hexdigest()
+
+        file_info = self.files.setdefault(rootname, FileInfo())
+
+        if this_hash == file_info.hash:
+            # Nothing has changed to require the file to be reported again.
+            return True
+        else:
+            # File has changed, record the latest hash and force regeneration.
+            file_info.hash = this_hash
+            return False
+
+    def index_info(self, fname: str) -> IndexItem:
+        """Get the information for index.html for `fname`."""
+        return self.files.get(fname, FileInfo()).index
+
+    def set_index_info(self, fname: str, info: IndexItem) -> None:
+        """Set the information for index.html for `fname`."""
+        self.files.setdefault(fname, FileInfo()).index = info
+
+
+# Helpers for templates and generating HTML
+
+
+def escape(t: str) -> str:
+    """HTML-escape the text in `t`.
+
+    This is only suitable for HTML text, not attributes.
+
+    """
+    # Convert HTML special chars into HTML entities.
+    return t.replace("&", "&amp;").replace("<", "&lt;")
+
+
+def pair(ratio: tuple[int, int]) -> str:
+    """Format a pair of numbers so JavaScript can read them in an attribute."""
+    return "{} {}".format(*ratio)
+
+
+def pretty_file(filename: str) -> str:
+    """Return a prettier version of `filename` for display.
+
+    This is a filter for the template engine, so HTML output is literal.
+    """
+    return re.sub(r"[/\\]", '<span class="sep">\\g<0></span>', filename)

calculator/lib/python3.12/site-packages/coverage/htmlfiles/coverage_html.js

@@ -0,0 +1,735 @@
+// Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+// For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+// Coverage.py HTML report browser code.
+/*jslint browser: true, sloppy: true, vars: true, plusplus: true, maxerr: 50, indent: 4 */
+/*global coverage: true, document, window, $ */
+
+coverage = {};
+
+// General helpers
+function debounce(callback, wait) {
+    let timeoutId = null;
+    return function(...args) {
+        clearTimeout(timeoutId);
+        timeoutId = setTimeout(() => {
+            callback.apply(this, args);
+        }, wait);
+    };
+};
+
+function checkVisible(element) {
+    const rect = element.getBoundingClientRect();
+    const viewBottom = Math.max(document.documentElement.clientHeight, window.innerHeight);
+    const viewTop = 30;
+    return !(rect.bottom < viewTop || rect.top >= viewBottom);
+}
+
+function on_click(sel, fn) {
+    const elt = document.querySelector(sel);
+    if (elt) {
+        elt.addEventListener("click", fn);
+    }
+}
+
+// Helpers for table sorting
+function getCellValue(row, column = 0) {
+    const cell = row.cells[column]  // nosemgrep: eslint.detect-object-injection
+    if (cell.childElementCount == 1) {
+        var child = cell.firstElementChild;
+        if (child.tagName === "A") {
+            child = child.firstElementChild;
+        }
+        if (child instanceof HTMLDataElement && child.value) {
+            return child.value;
+        }
+    }
+    return cell.innerText || cell.textContent;
+}
+
+function rowComparator(rowA, rowB, column = 0) {
+    let valueA = getCellValue(rowA, column);
+    let valueB = getCellValue(rowB, column);
+    if (!isNaN(valueA) && !isNaN(valueB)) {
+        return valueA - valueB;
+    }
+    return valueA.localeCompare(valueB, undefined, {numeric: true});
+}
+
+function sortColumn(th) {
+    // Get the current sorting direction of the selected header,
+    // clear state on other headers and then set the new sorting direction.
+    const currentSortOrder = th.getAttribute("aria-sort");
+    [...th.parentElement.cells].forEach(header => header.setAttribute("aria-sort", "none"));
+    var direction;
+    if (currentSortOrder === "none") {
+        direction = th.dataset.defaultSortOrder || "ascending";
+    }
+    else if (currentSortOrder === "ascending") {
+        direction = "descending";
+    }
+    else {
+        direction = "ascending";
+    }
+    th.setAttribute("aria-sort", direction);
+
+    const column = [...th.parentElement.cells].indexOf(th)
+
+    // Sort all rows and afterwards append them in order to move them in the DOM.
+    Array.from(th.closest("table").querySelectorAll("tbody tr"))
+        .sort((rowA, rowB) => rowComparator(rowA, rowB, column) * (direction === "ascending" ? 1 : -1))
+        .forEach(tr => tr.parentElement.appendChild(tr));
+
+    // Save the sort order for next time.
+    if (th.id !== "region") {
+        let th_id = "file";  // Sort by file if we don't have a column id
+        let current_direction = direction;
+        const stored_list = localStorage.getItem(coverage.INDEX_SORT_STORAGE);
+        if (stored_list) {
+            ({th_id, direction} = JSON.parse(stored_list))
+        }
+        localStorage.setItem(coverage.INDEX_SORT_STORAGE, JSON.stringify({
+            "th_id": th.id,
+            "direction": current_direction
+        }));
+        if (th.id !== th_id || document.getElementById("region")) {
+            // Sort column has changed, unset sorting by function or class.
+            localStorage.setItem(coverage.SORTED_BY_REGION, JSON.stringify({
+                "by_region": false,
+                "region_direction": current_direction
+            }));
+        }
+    }
+    else {
+        // Sort column has changed to by function or class, remember that.
+        localStorage.setItem(coverage.SORTED_BY_REGION, JSON.stringify({
+            "by_region": true,
+            "region_direction": direction
+        }));
+    }
+}
+
+// Find all the elements with data-shortcut attribute, and use them to assign a shortcut key.
+coverage.assign_shortkeys = function () {
+    document.querySelectorAll("[data-shortcut]").forEach(element => {
+        document.addEventListener("keypress", event => {
+            if (event.target.tagName.toLowerCase() === "input") {
+                return; // ignore keypress from search filter
+            }
+            if (event.key === element.dataset.shortcut) {
+                element.click();
+            }
+        });
+    });
+};
+
+// Create the events for the filter box.
+coverage.wire_up_filter = function () {
+    // Populate the filter and hide100 inputs if there are saved values for them.
+    const saved_filter_value = localStorage.getItem(coverage.FILTER_STORAGE);
+    if (saved_filter_value) {
+        document.getElementById("filter").value = saved_filter_value;
+    }
+    const saved_hide100_value = localStorage.getItem(coverage.HIDE100_STORAGE);
+    if (saved_hide100_value) {
+        document.getElementById("hide100").checked = JSON.parse(saved_hide100_value);
+    }
+
+    // Cache elements.
+    const table = document.querySelector("table.index");
+    const table_body_rows = table.querySelectorAll("tbody tr");
+    const no_rows = document.getElementById("no_rows");
+
+    const footer = table.tFoot.rows[0];
+    const ratio_columns = Array.from(footer.cells).map(cell => Boolean(cell.dataset.ratio));
+
+    // Observe filter keyevents.
+    const filter_handler = (event => {
+        // Keep running total of each metric, first index contains number of shown rows
+        const totals = ratio_columns.map(
+            is_ratio => is_ratio ? {"numer": 0, "denom": 0} : 0
+        );
+
+        var text = document.getElementById("filter").value;
+        // Store filter value
+        localStorage.setItem(coverage.FILTER_STORAGE, text);
+        const casefold = (text === text.toLowerCase());
+        const hide100 = document.getElementById("hide100").checked;
+        // Store hide value.
+        localStorage.setItem(coverage.HIDE100_STORAGE, JSON.stringify(hide100));
+
+        // Hide / show elements.
+        table_body_rows.forEach(row => {
+            var show = false;
+            // Check the text filter.
+            for (let column = 0; column < totals.length; column++) {
+                cell = row.cells[column];
+                if (cell.classList.contains("name")) {
+                    var celltext = cell.textContent;
+                    if (casefold) {
+                        celltext = celltext.toLowerCase();
+                    }
+                    if (celltext.includes(text)) {
+                        show = true;
+                    }
+                }
+            }
+
+            // Check the "hide covered" filter.
+            if (show && hide100) {
+                const [numer, denom] = row.cells[row.cells.length - 1].dataset.ratio.split(" ");
+                show = (numer !== denom);
+            }
+
+            if (!show) {
+                // hide
+                row.classList.add("hidden");
+                return;
+            }
+
+            // show
+            row.classList.remove("hidden");
+            totals[0]++;
+
+            for (let column = 0; column < totals.length; column++) {
+                // Accumulate dynamic totals
+                cell = row.cells[column]  // nosemgrep: eslint.detect-object-injection
+                if (cell.matches(".name, .spacer")) {
+                    continue;
+                }
+                if (ratio_columns[column] && cell.dataset.ratio) {
+                    // Column stores a ratio
+                    const [numer, denom] = cell.dataset.ratio.split(" ");
+                    totals[column]["numer"] += parseInt(numer, 10);  // nosemgrep: eslint.detect-object-injection
+                    totals[column]["denom"] += parseInt(denom, 10);  // nosemgrep: eslint.detect-object-injection
+                }
+                else {
+                    totals[column] += parseInt(cell.textContent, 10);  // nosemgrep: eslint.detect-object-injection
+                }
+            }
+        });
+
+        // Show placeholder if no rows will be displayed.
+        if (!totals[0]) {
+            // Show placeholder, hide table.
+            no_rows.style.display = "block";
+            table.style.display = "none";
+            return;
+        }
+
+        // Hide placeholder, show table.
+        no_rows.style.display = null;
+        table.style.display = null;
+
+        // Calculate new dynamic sum values based on visible rows.
+        for (let column = 0; column < totals.length; column++) {
+            // Get footer cell element.
+            const cell = footer.cells[column];  // nosemgrep: eslint.detect-object-injection
+            if (cell.matches(".name, .spacer")) {
+                continue;
+            }
+
+            // Set value into dynamic footer cell element.
+            if (ratio_columns[column]) {
+                // Percentage column uses the numerator and denominator,
+                // and adapts to the number of decimal places.
+                const match = /\.([0-9]+)/.exec(cell.textContent);
+                const places = match ? match[1].length : 0;
+                const { numer, denom } = totals[column];  // nosemgrep: eslint.detect-object-injection
+                cell.dataset.ratio = `${numer} ${denom}`;
+                // Check denom to prevent NaN if filtered files contain no statements
+                cell.textContent = denom
+                    ? `${(numer * 100 / denom).toFixed(places)}%`
+                    : `${(100).toFixed(places)}%`;
+            }
+            else {
+                cell.textContent = totals[column];  // nosemgrep: eslint.detect-object-injection
+            }
+        }
+    });
+
+    document.getElementById("filter").addEventListener("input", debounce(filter_handler));
+    document.getElementById("hide100").addEventListener("input", debounce(filter_handler));
+
+    // Trigger change event on setup, to force filter on page refresh
+    // (filter value may still be present).
+    document.getElementById("filter").dispatchEvent(new Event("input"));
+    document.getElementById("hide100").dispatchEvent(new Event("input"));
+};
+coverage.FILTER_STORAGE = "COVERAGE_FILTER_VALUE";
+coverage.HIDE100_STORAGE = "COVERAGE_HIDE100_VALUE";
+
+// Set up the click-to-sort columns.
+coverage.wire_up_sorting = function () {
+    document.querySelectorAll("[data-sortable] th[aria-sort]").forEach(
+        th => th.addEventListener("click", e => sortColumn(e.target))
+    );
+
+    // Look for a localStorage item containing previous sort settings:
+    let th_id = "file", direction = "ascending";
+    const stored_list = localStorage.getItem(coverage.INDEX_SORT_STORAGE);
+    if (stored_list) {
+        ({th_id, direction} = JSON.parse(stored_list));
+    }
+    let by_region = false, region_direction = "ascending";
+    const sorted_by_region = localStorage.getItem(coverage.SORTED_BY_REGION);
+    if (sorted_by_region) {
+        ({
+            by_region,
+            region_direction
+        } = JSON.parse(sorted_by_region));
+    }
+
+    const region_id = "region";
+    if (by_region && document.getElementById(region_id)) {
+        direction = region_direction;
+    }
+    // If we are in a page that has a column with id of "region", sort on
+    // it if the last sort was by function or class.
+    let th;
+    if (document.getElementById(region_id)) {
+        th = document.getElementById(by_region ? region_id : th_id);
+    }
+    else {
+        th = document.getElementById(th_id);
+    }
+    th.setAttribute("aria-sort", direction === "ascending" ? "descending" : "ascending");
+    th.click()
+};
+
+coverage.INDEX_SORT_STORAGE = "COVERAGE_INDEX_SORT_2";
+coverage.SORTED_BY_REGION = "COVERAGE_SORT_REGION";
+
+// Loaded on index.html
+coverage.index_ready = function () {
+    coverage.assign_shortkeys();
+    coverage.wire_up_filter();
+    coverage.wire_up_sorting();
+
+    on_click(".button_prev_file", coverage.to_prev_file);
+    on_click(".button_next_file", coverage.to_next_file);
+
+    on_click(".button_show_hide_help", coverage.show_hide_help);
+};
+
+// -- pyfile stuff --
+
+coverage.LINE_FILTERS_STORAGE = "COVERAGE_LINE_FILTERS";
+
+coverage.pyfile_ready = function () {
+    // If we're directed to a particular line number, highlight the line.
+    var frag = location.hash;
+    if (frag.length > 2 && frag[1] === "t") {
+        document.querySelector(frag).closest(".n").classList.add("highlight");
+        coverage.set_sel(parseInt(frag.substr(2), 10));
+    }
+    else {
+        coverage.set_sel(0);
+    }
+
+    on_click(".button_toggle_run", coverage.toggle_lines);
+    on_click(".button_toggle_mis", coverage.toggle_lines);
+    on_click(".button_toggle_exc", coverage.toggle_lines);
+    on_click(".button_toggle_par", coverage.toggle_lines);
+
+    on_click(".button_next_chunk", coverage.to_next_chunk_nicely);
+    on_click(".button_prev_chunk", coverage.to_prev_chunk_nicely);
+    on_click(".button_top_of_page", coverage.to_top);
+    on_click(".button_first_chunk", coverage.to_first_chunk);
+
+    on_click(".button_prev_file", coverage.to_prev_file);
+    on_click(".button_next_file", coverage.to_next_file);
+    on_click(".button_to_index", coverage.to_index);
+
+    on_click(".button_show_hide_help", coverage.show_hide_help);
+
+    coverage.filters = undefined;
+    try {
+        coverage.filters = localStorage.getItem(coverage.LINE_FILTERS_STORAGE);
+    } catch(err) {}
+
+    if (coverage.filters) {
+        coverage.filters = JSON.parse(coverage.filters);
+    }
+    else {
+        coverage.filters = {run: false, exc: true, mis: true, par: true};
+    }
+
+    for (cls in coverage.filters) {
+        coverage.set_line_visibilty(cls, coverage.filters[cls]);  // nosemgrep: eslint.detect-object-injection
+    }
+
+    coverage.assign_shortkeys();
+    coverage.init_scroll_markers();
+    coverage.wire_up_sticky_header();
+
+    document.querySelectorAll("[id^=ctxs]").forEach(
+        cbox => cbox.addEventListener("click", coverage.expand_contexts)
+    );
+
+    // Rebuild scroll markers when the window height changes.
+    window.addEventListener("resize", coverage.build_scroll_markers);
+};
+
+coverage.toggle_lines = function (event) {
+    const btn = event.target.closest("button");
+    const category = btn.value
+    const show = !btn.classList.contains("show_" + category);
+    coverage.set_line_visibilty(category, show);
+    coverage.build_scroll_markers();
+    coverage.filters[category] = show;
+    try {
+        localStorage.setItem(coverage.LINE_FILTERS_STORAGE, JSON.stringify(coverage.filters));
+    } catch(err) {}
+};
+
+coverage.set_line_visibilty = function (category, should_show) {
+    const cls = "show_" + category;
+    const btn = document.querySelector(".button_toggle_" + category);
+    if (btn) {
+        if (should_show) {
+            document.querySelectorAll("#source ." + category).forEach(e => e.classList.add(cls));
+            btn.classList.add(cls);
+        }
+        else {
+            document.querySelectorAll("#source ." + category).forEach(e => e.classList.remove(cls));
+            btn.classList.remove(cls);
+        }
+    }
+};
+
+// Return the nth line div.
+coverage.line_elt = function (n) {
+    return document.getElementById("t" + n)?.closest("p");
+};
+
+// Set the selection.  b and e are line numbers.
+coverage.set_sel = function (b, e) {
+    // The first line selected.
+    coverage.sel_begin = b;
+    // The next line not selected.
+    coverage.sel_end = (e === undefined) ? b+1 : e;
+};
+
+coverage.to_top = function () {
+    coverage.set_sel(0, 1);
+    coverage.scroll_window(0);
+};
+
+coverage.to_first_chunk = function () {
+    coverage.set_sel(0, 1);
+    coverage.to_next_chunk();
+};
+
+coverage.to_prev_file = function () {
+    window.location = document.getElementById("prevFileLink").href;
+}
+
+coverage.to_next_file = function () {
+    window.location = document.getElementById("nextFileLink").href;
+}
+
+coverage.to_index = function () {
+    location.href = document.getElementById("indexLink").href;
+}
+
+coverage.show_hide_help = function () {
+    const helpCheck = document.getElementById("help_panel_state")
+    helpCheck.checked = !helpCheck.checked;
+}
+
+// Return a string indicating what kind of chunk this line belongs to,
+// or null if not a chunk.
+coverage.chunk_indicator = function (line_elt) {
+    const classes = line_elt?.className;
+    if (!classes) {
+        return null;
+    }
+    const match = classes.match(/\bshow_\w+\b/);
+    if (!match) {
+        return null;
+    }
+    return match[0];
+};
+
+coverage.to_next_chunk = function () {
+    const c = coverage;
+
+    // Find the start of the next colored chunk.
+    var probe = c.sel_end;
+    var chunk_indicator, probe_line;
+    while (true) {
+        probe_line = c.line_elt(probe);
+        if (!probe_line) {
+            return;
+        }
+        chunk_indicator = c.chunk_indicator(probe_line);
+        if (chunk_indicator) {
+            break;
+        }
+        probe++;
+    }
+
+    // There's a next chunk, `probe` points to it.
+    var begin = probe;
+
+    // Find the end of this chunk.
+    var next_indicator = chunk_indicator;
+    while (next_indicator === chunk_indicator) {
+        probe++;
+        probe_line = c.line_elt(probe);
+        next_indicator = c.chunk_indicator(probe_line);
+    }
+    c.set_sel(begin, probe);
+    c.show_selection();
+};
+
+coverage.to_prev_chunk = function () {
+    const c = coverage;
+
+    // Find the end of the prev colored chunk.
+    var probe = c.sel_begin-1;
+    var probe_line = c.line_elt(probe);
+    if (!probe_line) {
+        return;
+    }
+    var chunk_indicator = c.chunk_indicator(probe_line);
+    while (probe > 1 && !chunk_indicator) {
+        probe--;
+        probe_line = c.line_elt(probe);
+        if (!probe_line) {
+            return;
+        }
+        chunk_indicator = c.chunk_indicator(probe_line);
+    }
+
+    // There's a prev chunk, `probe` points to its last line.
+    var end = probe+1;
+
+    // Find the beginning of this chunk.
+    var prev_indicator = chunk_indicator;
+    while (prev_indicator === chunk_indicator) {
+        probe--;
+        if (probe <= 0) {
+            return;
+        }
+        probe_line = c.line_elt(probe);
+        prev_indicator = c.chunk_indicator(probe_line);
+    }
+    c.set_sel(probe+1, end);
+    c.show_selection();
+};
+
+// Returns 0, 1, or 2: how many of the two ends of the selection are on
+// the screen right now?
+coverage.selection_ends_on_screen = function () {
+    if (coverage.sel_begin === 0) {
+        return 0;
+    }
+
+    const begin = coverage.line_elt(coverage.sel_begin);
+    const end = coverage.line_elt(coverage.sel_end-1);
+
+    return (
+        (checkVisible(begin) ? 1 : 0)
+        + (checkVisible(end) ? 1 : 0)
+    );
+};
+
+coverage.to_next_chunk_nicely = function () {
+    if (coverage.selection_ends_on_screen() === 0) {
+        // The selection is entirely off the screen:
+        // Set the top line on the screen as selection.
+
+        // This will select the top-left of the viewport
+        // As this is most likely the span with the line number we take the parent
+        const line = document.elementFromPoint(0, 0).parentElement;
+        if (line.parentElement !== document.getElementById("source")) {
+            // The element is not a source line but the header or similar
+            coverage.select_line_or_chunk(1);
+        }
+        else {
+            // We extract the line number from the id
+            coverage.select_line_or_chunk(parseInt(line.id.substring(1), 10));
+        }
+    }
+    coverage.to_next_chunk();
+};
+
+coverage.to_prev_chunk_nicely = function () {
+    if (coverage.selection_ends_on_screen() === 0) {
+        // The selection is entirely off the screen:
+        // Set the lowest line on the screen as selection.
+
+        // This will select the bottom-left of the viewport
+        // As this is most likely the span with the line number we take the parent
+        const line = document.elementFromPoint(document.documentElement.clientHeight-1, 0).parentElement;
+        if (line.parentElement !== document.getElementById("source")) {
+            // The element is not a source line but the header or similar
+            coverage.select_line_or_chunk(coverage.lines_len);
+        }
+        else {
+            // We extract the line number from the id
+            coverage.select_line_or_chunk(parseInt(line.id.substring(1), 10));
+        }
+    }
+    coverage.to_prev_chunk();
+};
+
+// Select line number lineno, or if it is in a colored chunk, select the
+// entire chunk
+coverage.select_line_or_chunk = function (lineno) {
+    var c = coverage;
+    var probe_line = c.line_elt(lineno);
+    if (!probe_line) {
+        return;
+    }
+    var the_indicator = c.chunk_indicator(probe_line);
+    if (the_indicator) {
+        // The line is in a highlighted chunk.
+        // Search backward for the first line.
+        var probe = lineno;
+        var indicator = the_indicator;
+        while (probe > 0 && indicator === the_indicator) {
+            probe--;
+            probe_line = c.line_elt(probe);
+            if (!probe_line) {
+                break;
+            }
+            indicator = c.chunk_indicator(probe_line);
+        }
+        var begin = probe + 1;
+
+        // Search forward for the last line.
+        probe = lineno;
+        indicator = the_indicator;
+        while (indicator === the_indicator) {
+            probe++;
+            probe_line = c.line_elt(probe);
+            indicator = c.chunk_indicator(probe_line);
+        }
+
+        coverage.set_sel(begin, probe);
+    }
+    else {
+        coverage.set_sel(lineno);
+    }
+};
+
+coverage.show_selection = function () {
+    // Highlight the lines in the chunk
+    document.querySelectorAll("#source .highlight").forEach(e => e.classList.remove("highlight"));
+    for (let probe = coverage.sel_begin; probe < coverage.sel_end; probe++) {
+        coverage.line_elt(probe).querySelector(".n").classList.add("highlight");
+    }
+
+    coverage.scroll_to_selection();
+};
+
+coverage.scroll_to_selection = function () {
+    // Scroll the page if the chunk isn't fully visible.
+    if (coverage.selection_ends_on_screen() < 2) {
+        const element = coverage.line_elt(coverage.sel_begin);
+        coverage.scroll_window(element.offsetTop - 60);
+    }
+};
+
+coverage.scroll_window = function (to_pos) {
+    window.scroll({top: to_pos, behavior: "smooth"});
+};
+
+coverage.init_scroll_markers = function () {
+    // Init some variables
+    coverage.lines_len = document.querySelectorAll("#source > p").length;
+
+    // Build html
+    coverage.build_scroll_markers();
+};
+
+coverage.build_scroll_markers = function () {
+    const temp_scroll_marker = document.getElementById("scroll_marker")
+    if (temp_scroll_marker) temp_scroll_marker.remove();
+    // Don't build markers if the window has no scroll bar.
+    if (document.body.scrollHeight <= window.innerHeight) {
+        return;
+    }
+
+    const marker_scale = window.innerHeight / document.body.scrollHeight;
+    const line_height = Math.min(Math.max(3, window.innerHeight / coverage.lines_len), 10);
+
+    let previous_line = -99, last_mark, last_top;
+
+    const scroll_marker = document.createElement("div");
+    scroll_marker.id = "scroll_marker";
+    document.getElementById("source").querySelectorAll(
+        "p.show_run, p.show_mis, p.show_exc, p.show_exc, p.show_par"
+    ).forEach(element => {
+        const line_top = Math.floor(element.offsetTop * marker_scale);
+        const line_number = parseInt(element.querySelector(".n a").id.substr(1));
+
+        if (line_number === previous_line + 1) {
+            // If this solid missed block just make previous mark higher.
+            last_mark.style.height = `${line_top + line_height - last_top}px`;
+        }
+        else {
+            // Add colored line in scroll_marker block.
+            last_mark = document.createElement("div");
+            last_mark.id = `m${line_number}`;
+            last_mark.classList.add("marker");
+            last_mark.style.height = `${line_height}px`;
+            last_mark.style.top = `${line_top}px`;
+            scroll_marker.append(last_mark);
+            last_top = line_top;
+        }
+
+        previous_line = line_number;
+    });
+
+    // Append last to prevent layout calculation
+    document.body.append(scroll_marker);
+};
+
+coverage.wire_up_sticky_header = function () {
+    const header = document.querySelector("header");
+    const header_bottom = (
+        header.querySelector(".content h2").getBoundingClientRect().top -
+        header.getBoundingClientRect().top
+    );
+
+    function updateHeader() {
+        if (window.scrollY > header_bottom) {
+            header.classList.add("sticky");
+        }
+        else {
+            header.classList.remove("sticky");
+        }
+    }
+
+    window.addEventListener("scroll", updateHeader);
+    updateHeader();
+};
+
+coverage.expand_contexts = function (e) {
+    var ctxs = e.target.parentNode.querySelector(".ctxs");
+
+    if (!ctxs.classList.contains("expanded")) {
+        var ctxs_text = ctxs.textContent;
+        var width = Number(ctxs_text[0]);
+        ctxs.textContent = "";
+        for (var i = 1; i < ctxs_text.length; i += width) {
+            key = ctxs_text.substring(i, i + width).trim();
+            ctxs.appendChild(document.createTextNode(contexts[key]));
+            ctxs.appendChild(document.createElement("br"));
+        }
+        ctxs.classList.add("expanded");
+    }
+};
+
+document.addEventListener("DOMContentLoaded", () => {
+    if (document.body.classList.contains("indexfile")) {
+        coverage.index_ready();
+    }
+    else {
+        coverage.pyfile_ready();
+    }
+});

calculator/lib/python3.12/site-packages/coverage/htmlfiles/index.html

@@ -0,0 +1,199 @@
+{# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 #}
+{# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt #}
+
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <title>{{ title|escape }}</title>
+    <link rel="icon" sizes="32x32" href="{{ statics.favicon_32_png }}">
+    <link rel="stylesheet" href="{{ statics.style_css }}" type="text/css">
+    {% if extra_css %}
+        <link rel="stylesheet" href="{{ statics.extra_css }}" type="text/css">
+    {% endif %}
+    <script src="{{ statics.coverage_html_js }}" defer></script>
+</head>
+<body class="indexfile">
+
+<header>
+    <div class="content">
+        <h1>{{ title|escape }}:
+            <span class="pc_cov">{{totals.pc_covered_str}}%</span>
+        </h1>
+
+        <aside id="help_panel_wrapper">
+            <input id="help_panel_state" type="checkbox">
+            <label for="help_panel_state">
+                <img id="keyboard_icon" src="{{ statics.keybd_closed_png }}" alt="Show/hide keyboard shortcuts">
+            </label>
+            <div id="help_panel">
+                <p class="legend">Shortcuts on this page</p>
+                <div class="keyhelp">
+                    <p>
+                        <kbd>f</kbd>
+                        {% if region_noun %}
+                        <kbd>n</kbd>
+                        {% endif %}
+                        <kbd>s</kbd>
+                        <kbd>m</kbd>
+                        <kbd>x</kbd>
+                        {% if has_arcs %}
+                        <kbd>b</kbd>
+                        <kbd>p</kbd>
+                        {% endif %}
+                        <kbd>c</kbd>
+                        &nbsp; change column sorting
+                    </p>
+                    <p>
+                        <kbd>[</kbd>
+                        <kbd>]</kbd>
+                        &nbsp; prev/next file
+                    </p>
+                    <p>
+                        <kbd>?</kbd> &nbsp; show/hide this help
+                    </p>
+                </div>
+            </div>
+        </aside>
+
+        <form id="filter_container">
+            <input id="filter" type="text" value="" placeholder="filter...">
+            <div>
+                <input id="hide100" type="checkbox" {% if skip_covered %}checked disabled {% endif %}>
+                <label for="hide100">hide covered</label>
+            </div>
+        </form>
+
+        <h2>
+            {% for ibtn in index_buttons %}
+                <a class="button{% if ibtn.current %} current{% endif %}"{% if ibtn.url %} href="{{ ibtn.url }}"{% endif %}>{{ ibtn.label }}</a>{#-#}
+            {% endfor %}
+        </h2>
+
+        <p class="text">
+            <a class="nav" href="{{__url__}}">coverage.py v{{__version__}}</a>,
+            created at {{ time_stamp }}
+        </p>
+    </div>
+</header>
+
+<main id="index">
+    <table class="index" data-sortable>
+        <thead>
+            {# The title="" attr doesn't work in Safari. #}
+            {% if has_arcs %}
+            <tr class="tablehead grouphead">
+                <th class="spacer">&nbsp;</th>
+                {% if region_noun %}
+                <th class="spacer">&nbsp;</th>
+                {% endif %}
+                <th class="spacer">&nbsp;</th>
+                <th class="left" colspan="{% if has_arcs %}4{% else %}3{% endif %}">Statements</th>
+                <th class="spacer">&nbsp;</th>
+                <th class="left" colspan="3">Branches</th>
+                <th class="spacer">&nbsp;</th>
+                <th>Total</th>
+            </tr>
+            {% endif %}
+            <tr class="tablehead" title="Click to sort">
+                <th id="file" class="name" aria-sort="none" data-shortcut="f">File<span class="arrows"></span></th>
+                {% if region_noun %}
+                <th id="region" class="name" aria-sort="none" data-default-sort-order="ascending" data-shortcut="n">{{ region_noun }}<span class="arrows"></span></th>
+                {% endif %}
+                <th class="spacer">&nbsp;</th>
+                {% if has_arcs %}
+                <th id="statements_coverage" aria-sort="none" data-default-sort-order="descending">coverage<span class="arrows"></span></th>
+                {% endif %}
+                <th id="statements" aria-sort="none" data-default-sort-order="descending" data-shortcut="s">statements<span class="arrows"></span></th>
+                <th id="missing" aria-sort="none" data-default-sort-order="descending" data-shortcut="m">missing<span class="arrows"></span></th>
+                <th id="excluded" aria-sort="none" data-default-sort-order="descending" data-shortcut="x">excluded<span class="arrows"></span></th>
+                {% if has_arcs %}
+                <th class="spacer">&nbsp;</th>
+                <th id="branches_coverage" aria-sort="none" data-default-sort-order="descending">coverage<span class="arrows"></span></th>
+                <th id="branches" aria-sort="none" data-default-sort-order="descending" data-shortcut="b">branches<span class="arrows"></span></th>
+                <th id="partial" aria-sort="none" data-default-sort-order="descending" data-shortcut="p">partial<span class="arrows"></span></th>
+                {% endif %}
+                <th class="spacer">&nbsp;</th>
+                <th id="coverage" aria-sort="none" data-shortcut="c">coverage<span class="arrows"></span></th>
+            </tr>
+        </thead>
+        <tbody>
+            {% for region in regions %}
+            <tr class="region">
+                <td class="name"><a href="{{region.url}}">{{region.file|escape|pretty_file}}</a></td>
+                {% if region_noun %}
+                <td class="name"><a href="{{region.url}}">{{region.description}}</a></td>
+                {% endif %}
+                <td class="spacer">&nbsp;</td>
+                {% if has_arcs %}
+                <td data-ratio="{{region.nums.ratio_statements|pair}}">{{region.nums.pc_statements_str}}%</td>
+                {% endif %}
+                <td>{{region.nums.n_statements}}</td>
+                <td>{{region.nums.n_missing}}</td>
+                <td>{{region.nums.n_excluded}}</td>
+                {% if has_arcs %}
+                <td class="spacer">&nbsp;</td>
+                <td data-ratio="{{region.nums.ratio_branches|pair}}">{{region.nums.pc_branches_str}}%</td>
+                <td>{{region.nums.n_branches}}</td>
+                <td>{{region.nums.n_partial_branches}}</td>
+                {% endif %}
+                <td class="spacer">&nbsp;</td>
+                <td data-ratio="{{region.nums.ratio_covered|pair}}">{{region.nums.pc_covered_str}}%</td>
+            </tr>
+            {% endfor %}
+        </tbody>
+        <tfoot>
+            <tr class="total">
+                <td class="name">Total</td>
+                {% if region_noun %}
+                <td class="name">&nbsp;</td>
+                {% endif %}
+                <td class="spacer">&nbsp;</td>
+                {% if has_arcs %}
+                <td data-ratio="{{totals.ratio_statements|pair}}">{{totals.pc_statements_str}}%</td>
+                {% endif %}
+                <td>{{totals.n_statements}}</td>
+                <td>{{totals.n_missing}}</td>
+                <td>{{totals.n_excluded}}</td>
+                {% if has_arcs %}
+                <td class="spacer">&nbsp;</td>
+                <td data-ratio="{{totals.ratio_branches|pair}}">{{totals.pc_branches_str}}%</td>
+                <td>{{totals.n_branches}}</td>
+                <td>{{totals.n_partial_branches}}</td>
+                {% endif %}
+                <td class="spacer">&nbsp;</td>
+                <td data-ratio="{{totals.ratio_covered|pair}}">{{totals.pc_covered_str}}%</td>
+            </tr>
+        </tfoot>
+    </table>
+
+    <p id="no_rows">
+        No items found using the specified filter.
+    </p>
+
+    {% if skipped_covered_msg %}
+        <p>{{ skipped_covered_msg }}</p>
+    {% endif %}
+    {% if skipped_empty_msg %}
+        <p>{{ skipped_empty_msg }}</p>
+    {% endif %}
+</main>
+
+<footer>
+    <div class="content">
+        <p>
+            <a class="nav" href="{{__url__}}">coverage.py v{{__version__}}</a>,
+            created at {{ time_stamp }}
+        </p>
+    </div>
+    <aside class="hidden">
+        <a id="prevFileLink" class="nav" href="{{ final_html }}"></a>
+        <a id="nextFileLink" class="nav" href="{{ first_html }}"></a>
+        <button type="button" class="button_prev_file" data-shortcut="["></button>
+        <button type="button" class="button_next_file" data-shortcut="]"></button>
+        <button type="button" class="button_show_hide_help" data-shortcut="?"></button>
+    </aside>
+</footer>
+
+</body>
+</html>

calculator/lib/python3.12/site-packages/coverage/htmlfiles/pyfile.html

@@ -0,0 +1,149 @@
+{# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 #}
+{# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt #}
+
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <title>Coverage for {{relative_filename|escape}}: {{nums.pc_covered_str}}%</title>
+    <link rel="icon" sizes="32x32" href="{{ statics.favicon_32_png }}">
+    <link rel="stylesheet" href="{{ statics.style_css }}" type="text/css">
+    {% if extra_css %}
+        <link rel="stylesheet" href="{{ statics.extra_css }}" type="text/css">
+    {% endif %}
+
+    {% if contexts_json %}
+    <script type="text/javascript">
+        contexts = {{ contexts_json }}
+    </script>
+    {% endif %}
+
+    <script src="{{ statics.coverage_html_js }}" defer></script>
+</head>
+<body class="pyfile">
+
+<header>
+    <div class="content">
+        <h1>
+            <span class="text">Coverage for </span><b>{{relative_filename|escape|pretty_file}}</b>:
+            <span class="pc_cov">{{nums.pc_covered_str}}%</span>
+        </h1>
+
+        <aside id="help_panel_wrapper">
+            <input id="help_panel_state" type="checkbox">
+            <label for="help_panel_state">
+                <img id="keyboard_icon" src="{{ statics.keybd_closed_png }}" alt="Show/hide keyboard shortcuts">
+            </label>
+            <div id="help_panel">
+                <p class="legend">Shortcuts on this page</p>
+                <div class="keyhelp">
+                    <p>
+                        <kbd>r</kbd>
+                        <kbd>m</kbd>
+                        <kbd>x</kbd>
+                        {% if has_arcs %}
+                        <kbd>p</kbd>
+                        {% endif %}
+                        &nbsp; toggle line displays
+                    </p>
+                    <p>
+                        <kbd>j</kbd>
+                        <kbd>k</kbd>
+                        &nbsp; next/prev highlighted chunk
+                    </p>
+                    <p>
+                        <kbd>0</kbd> &nbsp; (zero) top of page
+                    </p>
+                    <p>
+                        <kbd>1</kbd> &nbsp; (one) first highlighted chunk
+                    </p>
+                    <p>
+                        <kbd>[</kbd>
+                        <kbd>]</kbd>
+                        &nbsp; prev/next file
+                    </p>
+                    <p>
+                        <kbd>u</kbd> &nbsp; up to the index
+                    </p>
+                    <p>
+                        <kbd>?</kbd> &nbsp; show/hide this help
+                    </p>
+                </div>
+            </div>
+        </aside>
+
+        <h2>
+            <span class="text">{{nums.n_statements}} statements &nbsp;</span>
+            <button type="button" class="{{category.run}} button_toggle_run" value="run" data-shortcut="r" title="Toggle lines run">{{nums.n_executed}}<span class="text"> run</span></button>
+            <button type="button" class="{{category.mis}} button_toggle_mis" value="mis" data-shortcut="m" title="Toggle lines missing">{{nums.n_missing}}<span class="text"> missing</span></button>
+            <button type="button" class="{{category.exc}} button_toggle_exc" value="exc" data-shortcut="x" title="Toggle lines excluded">{{nums.n_excluded}}<span class="text"> excluded</span></button>
+            {% if has_arcs %}
+            <button type="button" class="{{category.par}} button_toggle_par" value="par" data-shortcut="p" title="Toggle lines partially run">{{nums.n_partial_branches}}<span class="text"> partial</span></button>
+            {% endif %}
+        </h2>
+
+        <p class="text">
+            <a id="prevFileLink" class="nav" href="{{ prev_html }}">&#xab; prev</a> &nbsp; &nbsp;
+            <a id="indexLink" class="nav" href="index.html">&Hat; index</a> &nbsp; &nbsp;
+            <a id="nextFileLink" class="nav" href="{{ next_html }}">&#xbb; next</a>
+            &nbsp; &nbsp; &nbsp;
+            <a class="nav" href="{{__url__}}">coverage.py v{{__version__}}</a>,
+            created at {{ time_stamp }}
+        </p>
+
+        <aside class="hidden">
+            <button type="button" class="button_next_chunk" data-shortcut="j"></button>
+            <button type="button" class="button_prev_chunk" data-shortcut="k"></button>
+            <button type="button" class="button_top_of_page" data-shortcut="0"></button>
+            <button type="button" class="button_first_chunk" data-shortcut="1"></button>
+            <button type="button" class="button_prev_file" data-shortcut="["></button>
+            <button type="button" class="button_next_file" data-shortcut="]"></button>
+            <button type="button" class="button_to_index" data-shortcut="u"></button>
+            <button type="button" class="button_show_hide_help" data-shortcut="?"></button>
+        </aside>
+    </div>
+</header>
+
+<main id="source">
+    {% for line in lines -%}
+        {% joined %}
+        <p class="{{line.css_class}}">
+            <span class="n"><a id="t{{line.number}}" href="#t{{line.number}}">{{line.number}}</a></span>
+            <span class="t">{{line.html}}&nbsp;</span>
+            {% if line.context_list %}
+                <input type="checkbox" id="ctxs{{line.number}}">
+            {% endif %}
+            {# Things that should float right in the line. #}
+            <span class="r">
+                {% if line.annotate %}
+                    <span class="annotate short">{{line.annotate}}</span>
+                    <span class="annotate long">{{line.annotate_long}}</span>
+                {% endif %}
+                {% if line.contexts %}
+                    <label for="ctxs{{line.number}}" class="ctx">{{ line.contexts_label }}</label>
+                {% endif %}
+            </span>
+            {# Things that should appear below the line. #}
+            {% if line.context_str %}
+                <span class="ctxs">{{ line.context_str }}</span>
+            {% endif %}
+        </p>
+        {% endjoined %}
+    {% endfor %}
+</main>
+
+<footer>
+    <div class="content">
+        <p>
+            <a class="nav" href="{{ prev_html }}">&#xab; prev</a> &nbsp; &nbsp;
+            <a class="nav" href="index.html">&Hat; index</a> &nbsp; &nbsp;
+            <a class="nav" href="{{ next_html }}">&#xbb; next</a>
+            &nbsp; &nbsp; &nbsp;
+            <a class="nav" href="{{__url__}}">coverage.py v{{__version__}}</a>,
+            created at {{ time_stamp }}
+        </p>
+    </div>
+</footer>
+
+</body>
+</html>

calculator/lib/python3.12/site-packages/coverage/htmlfiles/style.css

@@ -0,0 +1,391 @@
+@charset "UTF-8";
+/* Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 */
+/* For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt */
+/* Don't edit this .css file. Edit the .scss file instead! */
+html, body, h1, h2, h3, p, table, td, th { margin: 0; padding: 0; border: 0; font-weight: inherit; font-style: inherit; font-size: 100%; font-family: inherit; vertical-align: baseline; }
+
+body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, Cantarell, "Helvetica Neue", sans-serif; font-size: 1em; background: #fff; color: #000; }
+
+@media (prefers-color-scheme: dark) { body { background: #1e1e1e; } }
+
+@media (prefers-color-scheme: dark) { body { color: #eee; } }
+
+html > body { font-size: 16px; }
+
+a:active, a:focus { outline: 2px dashed #007acc; }
+
+p { font-size: .875em; line-height: 1.4em; }
+
+table { border-collapse: collapse; }
+
+td { vertical-align: top; }
+
+table tr.hidden { display: none !important; }
+
+p#no_rows { display: none; font-size: 1.15em; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, Cantarell, "Helvetica Neue", sans-serif; }
+
+a.nav { text-decoration: none; color: inherit; }
+
+a.nav:hover { text-decoration: underline; color: inherit; }
+
+.hidden { display: none; }
+
+header { background: #f8f8f8; width: 100%; z-index: 2; border-bottom: 1px solid #ccc; }
+
+@media (prefers-color-scheme: dark) { header { background: black; } }
+
+@media (prefers-color-scheme: dark) { header { border-color: #333; } }
+
+header .content { padding: 1rem 3.5rem; }
+
+header h2 { margin-top: .5em; font-size: 1em; }
+
+header h2 a.button { font-family: inherit; font-size: inherit; border: 1px solid; border-radius: .2em; background: #eee; color: inherit; text-decoration: none; padding: .1em .5em; margin: 1px calc(.1em + 1px); cursor: pointer; border-color: #ccc; }
+
+@media (prefers-color-scheme: dark) { header h2 a.button { background: #333; } }
+
+@media (prefers-color-scheme: dark) { header h2 a.button { border-color: #444; } }
+
+header h2 a.button.current { border: 2px solid; background: #fff; border-color: #999; cursor: default; }
+
+@media (prefers-color-scheme: dark) { header h2 a.button.current { background: #1e1e1e; } }
+
+@media (prefers-color-scheme: dark) { header h2 a.button.current { border-color: #777; } }
+
+header p.text { margin: .5em 0 -.5em; color: #666; font-style: italic; }
+
+@media (prefers-color-scheme: dark) { header p.text { color: #aaa; } }
+
+header.sticky { position: fixed; left: 0; right: 0; height: 2.5em; }
+
+header.sticky .text { display: none; }
+
+header.sticky h1, header.sticky h2 { font-size: 1em; margin-top: 0; display: inline-block; }
+
+header.sticky .content { padding: 0.5rem 3.5rem; }
+
+header.sticky .content p { font-size: 1em; }
+
+header.sticky ~ #source { padding-top: 6.5em; }
+
+main { position: relative; z-index: 1; }
+
+footer { margin: 1rem 3.5rem; }
+
+footer .content { padding: 0; color: #666; font-style: italic; }
+
+@media (prefers-color-scheme: dark) { footer .content { color: #aaa; } }
+
+#index { margin: 1rem 0 0 3.5rem; }
+
+h1 { font-size: 1.25em; display: inline-block; }
+
+#filter_container { float: right; margin: 0 2em 0 0; line-height: 1.66em; }
+
+#filter_container #filter { width: 10em; padding: 0.2em 0.5em; border: 2px solid #ccc; background: #fff; color: #000; }
+
+@media (prefers-color-scheme: dark) { #filter_container #filter { border-color: #444; } }
+
+@media (prefers-color-scheme: dark) { #filter_container #filter { background: #1e1e1e; } }
+
+@media (prefers-color-scheme: dark) { #filter_container #filter { color: #eee; } }
+
+#filter_container #filter:focus { border-color: #007acc; }
+
+#filter_container :disabled ~ label { color: #ccc; }
+
+@media (prefers-color-scheme: dark) { #filter_container :disabled ~ label { color: #444; } }
+
+#filter_container label { font-size: .875em; color: #666; }
+
+@media (prefers-color-scheme: dark) { #filter_container label { color: #aaa; } }
+
+header button { font-family: inherit; font-size: inherit; border: 1px solid; border-radius: .2em; background: #eee; color: inherit; text-decoration: none; padding: .1em .5em; margin: 1px calc(.1em + 1px); cursor: pointer; border-color: #ccc; }
+
+@media (prefers-color-scheme: dark) { header button { background: #333; } }
+
+@media (prefers-color-scheme: dark) { header button { border-color: #444; } }
+
+header button:active, header button:focus { outline: 2px dashed #007acc; }
+
+header button.run { background: #eeffee; }
+
+@media (prefers-color-scheme: dark) { header button.run { background: #373d29; } }
+
+header button.run.show_run { background: #dfd; border: 2px solid #00dd00; margin: 0 .1em; }
+
+@media (prefers-color-scheme: dark) { header button.run.show_run { background: #373d29; } }
+
+header button.mis { background: #ffeeee; }
+
+@media (prefers-color-scheme: dark) { header button.mis { background: #4b1818; } }
+
+header button.mis.show_mis { background: #fdd; border: 2px solid #ff0000; margin: 0 .1em; }
+
+@media (prefers-color-scheme: dark) { header button.mis.show_mis { background: #4b1818; } }
+
+header button.exc { background: #f7f7f7; }
+
+@media (prefers-color-scheme: dark) { header button.exc { background: #333; } }
+
+header button.exc.show_exc { background: #eee; border: 2px solid #808080; margin: 0 .1em; }
+
+@media (prefers-color-scheme: dark) { header button.exc.show_exc { background: #333; } }
+
+header button.par { background: #ffffd5; }
+
+@media (prefers-color-scheme: dark) { header button.par { background: #650; } }
+
+header button.par.show_par { background: #ffa; border: 2px solid #bbbb00; margin: 0 .1em; }
+
+@media (prefers-color-scheme: dark) { header button.par.show_par { background: #650; } }
+
+#help_panel, #source p .annotate.long { display: none; position: absolute; z-index: 999; background: #ffffcc; border: 1px solid #888; border-radius: .2em; color: #333; padding: .25em .5em; }
+
+#source p .annotate.long { white-space: normal; float: right; top: 1.75em; right: 1em; height: auto; }
+
+#help_panel_wrapper { float: right; position: relative; }
+
+#keyboard_icon { margin: 5px; }
+
+#help_panel_state { display: none; }
+
+#help_panel { top: 25px; right: 0; padding: .75em; border: 1px solid #883; color: #333; }
+
+#help_panel .keyhelp p { margin-top: .75em; }
+
+#help_panel .legend { font-style: italic; margin-bottom: 1em; }
+
+.indexfile #help_panel { width: 25em; }
+
+.pyfile #help_panel { width: 18em; }
+
+#help_panel_state:checked ~ #help_panel { display: block; }
+
+kbd { border: 1px solid black; border-color: #888 #333 #333 #888; padding: .1em .35em; font-family: SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-weight: bold; background: #eee; border-radius: 3px; }
+
+.sep { padding: 0 .1em; }
+
+#source { padding: 1em 0 1em 3.5rem; font-family: SFMono-Regular, Menlo, Monaco, Consolas, monospace; }
+
+#source p { position: relative; white-space: pre; }
+
+#source p * { box-sizing: border-box; }
+
+#source p .n { float: left; text-align: right; width: 3.5rem; box-sizing: border-box; margin-left: -3.5rem; padding-right: 1em; color: #999; user-select: none; }
+
+@media (prefers-color-scheme: dark) { #source p .n { color: #777; } }
+
+#source p .n.highlight { background: #ffdd00; }
+
+#source p .n a { scroll-margin-top: 6em; text-decoration: none; color: #999; }
+
+@media (prefers-color-scheme: dark) { #source p .n a { color: #777; } }
+
+#source p .n a:hover { text-decoration: underline; color: #999; }
+
+@media (prefers-color-scheme: dark) { #source p .n a:hover { color: #777; } }
+
+#source p .t { display: inline-block; width: 100%; box-sizing: border-box; margin-left: -.5em; padding-left: 0.3em; border-left: 0.2em solid #fff; }
+
+@media (prefers-color-scheme: dark) { #source p .t { border-color: #1e1e1e; } }
+
+#source p .t:hover { background: #f2f2f2; }
+
+@media (prefers-color-scheme: dark) { #source p .t:hover { background: #282828; } }
+
+#source p .t:hover ~ .r .annotate.long { display: block; }
+
+#source p .t .com { color: #008000; font-style: italic; line-height: 1px; }
+
+@media (prefers-color-scheme: dark) { #source p .t .com { color: #6a9955; } }
+
+#source p .t .key { font-weight: bold; line-height: 1px; }
+
+#source p .t .str, #source p .t .fst { color: #0451a5; }
+
+@media (prefers-color-scheme: dark) { #source p .t .str, #source p .t .fst { color: #9cdcfe; } }
+
+#source p.mis .t { border-left: 0.2em solid #ff0000; }
+
+#source p.mis.show_mis .t { background: #fdd; }
+
+@media (prefers-color-scheme: dark) { #source p.mis.show_mis .t { background: #4b1818; } }
+
+#source p.mis.show_mis .t:hover { background: #f2d2d2; }
+
+@media (prefers-color-scheme: dark) { #source p.mis.show_mis .t:hover { background: #532323; } }
+
+#source p.mis.mis2 .t { border-left: 0.2em dotted #ff0000; }
+
+#source p.mis.mis2.show_mis .t { background: #ffeeee; }
+
+@media (prefers-color-scheme: dark) { #source p.mis.mis2.show_mis .t { background: #351b1b; } }
+
+#source p.mis.mis2.show_mis .t:hover { background: #f2d2d2; }
+
+@media (prefers-color-scheme: dark) { #source p.mis.mis2.show_mis .t:hover { background: #532323; } }
+
+#source p.run .t { border-left: 0.2em solid #00dd00; }
+
+#source p.run.show_run .t { background: #dfd; }
+
+@media (prefers-color-scheme: dark) { #source p.run.show_run .t { background: #373d29; } }
+
+#source p.run.show_run .t:hover { background: #d2f2d2; }
+
+@media (prefers-color-scheme: dark) { #source p.run.show_run .t:hover { background: #404633; } }
+
+#source p.run.run2 .t { border-left: 0.2em dotted #00dd00; }
+
+#source p.run.run2.show_run .t { background: #eeffee; }
+
+@media (prefers-color-scheme: dark) { #source p.run.run2.show_run .t { background: #2b2e24; } }
+
+#source p.run.run2.show_run .t:hover { background: #d2f2d2; }
+
+@media (prefers-color-scheme: dark) { #source p.run.run2.show_run .t:hover { background: #404633; } }
+
+#source p.exc .t { border-left: 0.2em solid #808080; }
+
+#source p.exc.show_exc .t { background: #eee; }
+
+@media (prefers-color-scheme: dark) { #source p.exc.show_exc .t { background: #333; } }
+
+#source p.exc.show_exc .t:hover { background: #e2e2e2; }
+
+@media (prefers-color-scheme: dark) { #source p.exc.show_exc .t:hover { background: #3c3c3c; } }
+
+#source p.exc.exc2 .t { border-left: 0.2em dotted #808080; }
+
+#source p.exc.exc2.show_exc .t { background: #f7f7f7; }
+
+@media (prefers-color-scheme: dark) { #source p.exc.exc2.show_exc .t { background: #292929; } }
+
+#source p.exc.exc2.show_exc .t:hover { background: #e2e2e2; }
+
+@media (prefers-color-scheme: dark) { #source p.exc.exc2.show_exc .t:hover { background: #3c3c3c; } }
+
+#source p.par .t { border-left: 0.2em solid #bbbb00; }
+
+#source p.par.show_par .t { background: #ffa; }
+
+@media (prefers-color-scheme: dark) { #source p.par.show_par .t { background: #650; } }
+
+#source p.par.show_par .t:hover { background: #f2f2a2; }
+
+@media (prefers-color-scheme: dark) { #source p.par.show_par .t:hover { background: #6d5d0c; } }
+
+#source p.par.par2 .t { border-left: 0.2em dotted #bbbb00; }
+
+#source p.par.par2.show_par .t { background: #ffffd5; }
+
+@media (prefers-color-scheme: dark) { #source p.par.par2.show_par .t { background: #423a0f; } }
+
+#source p.par.par2.show_par .t:hover { background: #f2f2a2; }
+
+@media (prefers-color-scheme: dark) { #source p.par.par2.show_par .t:hover { background: #6d5d0c; } }
+
+#source p .r { position: absolute; top: 0; right: 2.5em; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, Cantarell, "Helvetica Neue", sans-serif; }
+
+#source p .annotate { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, Cantarell, "Helvetica Neue", sans-serif; color: #666; padding-right: .5em; }
+
+@media (prefers-color-scheme: dark) { #source p .annotate { color: #ddd; } }
+
+#source p .annotate.short:hover ~ .long { display: block; }
+
+#source p .annotate.long { width: 30em; right: 2.5em; }
+
+#source p input { display: none; }
+
+#source p input ~ .r label.ctx { cursor: pointer; border-radius: .25em; }
+
+#source p input ~ .r label.ctx::before { content: "▶ "; }
+
+#source p input ~ .r label.ctx:hover { background: #e8f4ff; color: #666; }
+
+@media (prefers-color-scheme: dark) { #source p input ~ .r label.ctx:hover { background: #0f3a42; } }
+
+@media (prefers-color-scheme: dark) { #source p input ~ .r label.ctx:hover { color: #aaa; } }
+
+#source p input:checked ~ .r label.ctx { background: #d0e8ff; color: #666; border-radius: .75em .75em 0 0; padding: 0 .5em; margin: -.25em 0; }
+
+@media (prefers-color-scheme: dark) { #source p input:checked ~ .r label.ctx { background: #056; } }
+
+@media (prefers-color-scheme: dark) { #source p input:checked ~ .r label.ctx { color: #aaa; } }
+
+#source p input:checked ~ .r label.ctx::before { content: "▼ "; }
+
+#source p input:checked ~ .ctxs { padding: .25em .5em; overflow-y: scroll; max-height: 10.5em; }
+
+#source p label.ctx { color: #999; display: inline-block; padding: 0 .5em; font-size: .8333em; }
+
+@media (prefers-color-scheme: dark) { #source p label.ctx { color: #777; } }
+
+#source p .ctxs { display: block; max-height: 0; overflow-y: hidden; transition: all .2s; padding: 0 .5em; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, Cantarell, "Helvetica Neue", sans-serif; white-space: nowrap; background: #d0e8ff; border-radius: .25em; margin-right: 1.75em; text-align: right; }
+
+@media (prefers-color-scheme: dark) { #source p .ctxs { background: #056; } }
+
+#index { font-family: SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: 0.875em; }
+
+#index table.index { margin-left: -.5em; }
+
+#index td, #index th { text-align: right; vertical-align: baseline; padding: .25em .5em; border-bottom: 1px solid #eee; }
+
+@media (prefers-color-scheme: dark) { #index td, #index th { border-color: #333; } }
+
+#index td.name, #index th.name { text-align: left; width: auto; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, Cantarell, "Helvetica Neue", sans-serif; min-width: 15em; }
+
+#index td.left, #index th.left { text-align: left; }
+
+#index td.spacer, #index th.spacer { border: none; padding: 0; }
+
+#index td.spacer:hover, #index th.spacer:hover { background: inherit; }
+
+#index th { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, Cantarell, "Helvetica Neue", sans-serif; font-style: italic; color: #333; border-color: #ccc; cursor: pointer; }
+
+@media (prefers-color-scheme: dark) { #index th { color: #ddd; } }
+
+@media (prefers-color-scheme: dark) { #index th { border-color: #444; } }
+
+#index th:hover { background: #eee; }
+
+@media (prefers-color-scheme: dark) { #index th:hover { background: #333; } }
+
+#index th .arrows { color: #666; font-size: 85%; font-family: sans-serif; font-style: normal; pointer-events: none; }
+
+#index th[aria-sort="ascending"], #index th[aria-sort="descending"] { white-space: nowrap; background: #eee; padding-left: .5em; }
+
+@media (prefers-color-scheme: dark) { #index th[aria-sort="ascending"], #index th[aria-sort="descending"] { background: #333; } }
+
+#index th[aria-sort="ascending"] .arrows::after { content: " ▲"; }
+
+#index th[aria-sort="descending"] .arrows::after { content: " ▼"; }
+
+#index tr.grouphead th { cursor: default; font-style: normal; border-color: #999; }
+
+@media (prefers-color-scheme: dark) { #index tr.grouphead th { border-color: #777; } }
+
+#index td.name { font-size: 1.15em; }
+
+#index td.name a { text-decoration: none; color: inherit; }
+
+#index td.name .no-noun { font-style: italic; }
+
+#index tr.total td, #index tr.total_dynamic td { font-weight: bold; border-bottom: none; }
+
+#index tr.region:hover { background: #eee; }
+
+@media (prefers-color-scheme: dark) { #index tr.region:hover { background: #333; } }
+
+#index tr.region:hover td.name { text-decoration: underline; color: inherit; }
+
+#scroll_marker { position: fixed; z-index: 3; right: 0; top: 0; width: 16px; height: 100%; background: #fff; border-left: 1px solid #eee; will-change: transform; }
+
+@media (prefers-color-scheme: dark) { #scroll_marker { background: #1e1e1e; } }
+
+@media (prefers-color-scheme: dark) { #scroll_marker { border-color: #333; } }
+
+#scroll_marker .marker { background: #ccc; position: absolute; min-height: 3px; width: 100%; }
+
+@media (prefers-color-scheme: dark) { #scroll_marker .marker { background: #444; } }

calculator/lib/python3.12/site-packages/coverage/htmlfiles/style.scss

@@ -0,0 +1,848 @@
+/* Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 */
+/* For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt */
+
+// CSS styles for coverage.py HTML reports.
+
+// When you edit this file, you need to run "make css" to get the CSS file
+// generated, and then check in both the .scss and the .css files.
+
+// When working on the file, this command is useful:
+//      sass --watch --style=compact --sourcemap=none --no-cache coverage/htmlfiles/style.scss:htmlcov/style.css
+//
+// OR you can process sass purely in python with `pip install pysass`, then:
+//      pysassc --style=compact coverage/htmlfiles/style.scss coverage/htmlfiles/style.css
+
+// Ignore this comment, it's for the CSS output file:
+/* Don't edit this .css file. Edit the .scss file instead! */
+
+// Dimensions
+$left-gutter: 3.5rem;
+
+//
+// Declare colors and variables
+//
+
+$font-normal:             -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
+$font-code:               SFMono-Regular, Menlo, Monaco, Consolas, monospace;
+
+$off-button-lighten:      50%;
+$hover-dark-amt:          95%;
+$multi-dim-amt:           50%;
+
+$focus-color:             #007acc;
+
+$mis-color:               #ff0000;
+$run-color:               #00dd00;
+$exc-color:               #808080;
+$par-color:               #bbbb00;
+
+$light-bg:                #fff;
+$light-fg:                #000;
+$light-gray1:             #f8f8f8;
+$light-gray2:             #eee;
+$light-gray3:             #ccc;
+$light-gray4:             #999;
+$light-gray5:             #666;
+$light-gray6:             #333;
+$light-pln-bg:            $light-bg;
+$light-mis-bg:            #fdd;
+$light-run-bg:            #dfd;
+$light-exc-bg:            $light-gray2;
+$light-par-bg:            #ffa;
+$light-token-com:         #008000;
+$light-token-str:         #0451a5;
+$light-context-bg-color:  #d0e8ff;
+
+$dark-bg:                 #1e1e1e;
+$dark-fg:                 #eee;
+$dark-gray1:              #222;
+$dark-gray2:              #333;
+$dark-gray3:              #444;
+$dark-gray4:              #777;
+$dark-gray5:              #aaa;
+$dark-gray6:              #ddd;
+$dark-pln-bg:             $dark-bg;
+$dark-mis-bg:             #4b1818;
+$dark-run-bg:             #373d29;
+$dark-exc-bg:             $dark-gray2;
+$dark-par-bg:             #650;
+$dark-token-com:          #6a9955;
+$dark-token-str:          #9cdcfe;
+$dark-context-bg-color:   #056;
+
+//
+// Mixins and utilities
+//
+
+@mixin background-dark($color) {
+    @media (prefers-color-scheme: dark) {
+        background: $color;
+    }
+}
+@mixin color-dark($color) {
+    @media (prefers-color-scheme: dark) {
+        color: $color;
+    }
+}
+@mixin border-color-dark($color) {
+    @media (prefers-color-scheme: dark) {
+        border-color: $color;
+    }
+}
+
+// Add visual outline to navigable elements on focus improve accessibility.
+@mixin focus-border {
+    &:active, &:focus {
+        outline: 2px dashed $focus-color;
+    }
+}
+
+@mixin button-shape {
+    font-family: inherit;
+    font-size: inherit;
+    border: 1px solid;
+    border-radius: .2em;
+    background: $light-gray2;
+    @include background-dark($dark-gray2);
+    color: inherit;
+    text-decoration: none;
+    padding: .1em .5em;
+    margin: 1px calc(.1em + 1px);
+    cursor: pointer;
+    border-color: $light-gray3;
+    @include border-color-dark($dark-gray3);
+}
+
+// Page-wide styles
+html, body, h1, h2, h3, p, table, td, th {
+    margin: 0;
+    padding: 0;
+    border: 0;
+    font-weight: inherit;
+    font-style: inherit;
+    font-size: 100%;
+    font-family: inherit;
+    vertical-align: baseline;
+}
+
+// Set baseline grid to 16 pt.
+body {
+    font-family: $font-normal;
+    font-size: 1em;
+    background: $light-bg;
+    color: $light-fg;
+    @include background-dark($dark-bg);
+    @include color-dark($dark-fg);
+}
+
+html>body {
+    font-size: 16px;
+}
+
+a {
+    @include focus-border;
+}
+
+p {
+    font-size: .875em;
+    line-height: 1.4em;
+}
+
+table {
+    border-collapse: collapse;
+}
+td {
+    vertical-align: top;
+}
+table tr.hidden {
+    display: none !important;
+}
+
+p#no_rows {
+    display: none;
+    font-size: 1.15em;
+    font-family: $font-normal;
+}
+
+a.nav {
+    text-decoration: none;
+    color: inherit;
+
+    &:hover {
+        text-decoration: underline;
+        color: inherit;
+    }
+}
+
+.hidden {
+    display: none;
+}
+
+// Page structure
+header {
+    background: $light-gray1;
+    @include background-dark(black);
+    width: 100%;
+    z-index: 2;
+    border-bottom: 1px solid $light-gray3;
+    @include border-color-dark($dark-gray2);
+
+    .content {
+        padding: 1rem $left-gutter;
+    }
+
+    h2 {
+        margin-top: .5em;
+        font-size: 1em;
+
+        a.button {
+            @include button-shape;
+            &.current {
+                border: 2px solid;
+                background: $light-bg;
+                @include background-dark($dark-bg);
+                border-color: $light-gray4;
+                @include border-color-dark($dark-gray4);
+                cursor: default;
+            }
+        }
+    }
+
+    p.text {
+        margin: .5em 0 -.5em;
+        color: $light-gray5;
+        @include color-dark($dark-gray5);
+        font-style: italic;
+    }
+
+    &.sticky {
+        position: fixed;
+        left: 0;
+        right: 0;
+        height: 2.5em;
+
+        .text {
+            display: none;
+        }
+
+        h1, h2 {
+            font-size: 1em;
+            margin-top: 0;
+            display: inline-block;
+        }
+
+        .content {
+            padding: .5rem $left-gutter;
+            p {
+                font-size: 1em;
+            }
+        }
+
+        & ~ #source {
+            padding-top: 6.5em;
+        }
+    }
+}
+
+main {
+    position: relative;
+    z-index: 1;
+}
+
+footer {
+    margin: 1rem $left-gutter;
+
+    .content {
+        padding: 0;
+        color: $light-gray5;
+        @include color-dark($dark-gray5);
+        font-style: italic;
+    }
+}
+
+#index {
+    margin: 1rem 0 0 $left-gutter;
+}
+
+// Header styles
+
+h1 {
+    font-size: 1.25em;
+    display: inline-block;
+}
+
+#filter_container {
+    float: right;
+    margin: 0 2em 0 0;
+    line-height: 1.66em;
+
+    #filter {
+        width: 10em;
+        padding: 0.2em 0.5em;
+        border: 2px solid $light-gray3;
+        background: $light-bg;
+        color: $light-fg;
+        @include border-color-dark($dark-gray3);
+        @include background-dark($dark-bg);
+        @include color-dark($dark-fg);
+        &:focus {
+            border-color: $focus-color;
+        }
+    }
+
+    :disabled ~ label{
+        color: $light-gray3;
+        @include color-dark($dark-gray3);
+    }
+
+    label {
+        font-size: .875em;
+        color: $light-gray5;
+        @include color-dark($dark-gray5);
+    }
+}
+
+header button {
+    @include button-shape;
+    @include focus-border;
+
+    &.run {
+        background: mix($light-run-bg, $light-bg, $off-button-lighten);
+        @include background-dark($dark-run-bg);
+        &.show_run {
+            background: $light-run-bg;
+            @include background-dark($dark-run-bg);
+            border: 2px solid $run-color;
+            margin: 0 .1em;
+        }
+    }
+    &.mis {
+        background: mix($light-mis-bg, $light-bg, $off-button-lighten);
+        @include background-dark($dark-mis-bg);
+        &.show_mis {
+            background: $light-mis-bg;
+            @include background-dark($dark-mis-bg);
+            border: 2px solid $mis-color;
+            margin: 0 .1em;
+        }
+    }
+    &.exc {
+        background: mix($light-exc-bg, $light-bg, $off-button-lighten);
+        @include background-dark($dark-exc-bg);
+        &.show_exc {
+            background: $light-exc-bg;
+            @include background-dark($dark-exc-bg);
+            border: 2px solid $exc-color;
+            margin: 0 .1em;
+        }
+    }
+    &.par {
+        background: mix($light-par-bg, $light-bg, $off-button-lighten);
+        @include background-dark($dark-par-bg);
+        &.show_par {
+            background: $light-par-bg;
+            @include background-dark($dark-par-bg);
+            border: 2px solid $par-color;
+            margin: 0 .1em;
+        }
+    }
+}
+
+// Yellow post-it things.
+%popup {
+    display: none;
+    position: absolute;
+    z-index: 999;
+    background: #ffffcc;
+    border: 1px solid #888;
+    border-radius: .2em;
+    color: #333;
+    padding: .25em .5em;
+}
+
+// Yellow post-it's in the text listings.
+%in-text-popup {
+    @extend %popup;
+    white-space: normal;
+    float: right;
+    top: 1.75em;
+    right: 1em;
+    height: auto;
+}
+
+// Help panel
+#help_panel_wrapper {
+    float: right;
+    position: relative;
+}
+
+#keyboard_icon {
+    margin: 5px;
+}
+
+#help_panel_state {
+    display: none;
+}
+
+#help_panel {
+    @extend %popup;
+    top: 25px;
+    right: 0;
+    padding: .75em;
+    border: 1px solid #883;
+
+    color: #333;
+
+    .keyhelp p {
+        margin-top: .75em;
+    }
+
+    .legend {
+        font-style: italic;
+        margin-bottom: 1em;
+    }
+
+    .indexfile & {
+        width: 25em;
+    }
+
+    .pyfile & {
+        width: 18em;
+    }
+
+    #help_panel_state:checked ~ & {
+        display: block;
+    }
+}
+
+kbd {
+    border: 1px solid black;
+    border-color: #888 #333 #333 #888;
+    padding: .1em .35em;
+    font-family: $font-code;
+    font-weight: bold;
+    background: #eee;
+    border-radius: 3px;
+}
+
+.sep {
+    padding: 0 .1em;
+}
+
+// Source file styles
+
+// The slim bar at the left edge of the source lines, colored by coverage.
+$border-indicator-width: .2em;
+
+#source {
+    padding: 1em 0 1em $left-gutter;
+    font-family: $font-code;
+
+    p {
+        // position relative makes position:absolute pop-ups appear in the right place.
+        position: relative;
+        white-space: pre;
+
+        * {
+            box-sizing: border-box;
+        }
+
+        .n {
+            float: left;
+            text-align: right;
+            width: $left-gutter;
+            box-sizing: border-box;
+            margin-left: -$left-gutter;
+            padding-right: 1em;
+            color: $light-gray4;
+            user-select: none;
+            @include color-dark($dark-gray4);
+
+            &.highlight {
+                background: #ffdd00;
+            }
+
+            a {
+                // Make anchors to the line scroll the line to be
+                // visible beneath the fixed-position header.
+                scroll-margin-top: 6em;
+                text-decoration: none;
+                color: $light-gray4;
+                @include color-dark($dark-gray4);
+                &:hover {
+                    text-decoration: underline;
+                    color: $light-gray4;
+                    @include color-dark($dark-gray4);
+                }
+            }
+        }
+
+        .t {
+            display: inline-block;
+            width: 100%;
+            box-sizing: border-box;
+            margin-left: -.5em;
+            padding-left: .5em - $border-indicator-width;
+            border-left: $border-indicator-width solid $light-bg;
+            @include border-color-dark($dark-bg);
+
+            &:hover {
+                background: mix($light-pln-bg, $light-fg, $hover-dark-amt);
+                @include background-dark(mix($dark-pln-bg, $dark-fg, $hover-dark-amt));
+
+                & ~ .r .annotate.long {
+                    display: block;
+                }
+            }
+
+            // Syntax coloring
+            .com {
+                color: $light-token-com;
+                @include color-dark($dark-token-com);
+                font-style: italic;
+                line-height: 1px;
+            }
+            .key {
+                font-weight: bold;
+                line-height: 1px;
+            }
+            .str, .fst {
+                color: $light-token-str;
+                @include color-dark($dark-token-str);
+            }
+        }
+
+        &.mis {
+            .t {
+                border-left: $border-indicator-width solid $mis-color;
+            }
+
+            &.show_mis .t {
+                background: $light-mis-bg;
+                @include background-dark($dark-mis-bg);
+
+                &:hover {
+                    background: mix($light-mis-bg, $light-fg, $hover-dark-amt);
+                    @include background-dark(mix($dark-mis-bg, $dark-fg, $hover-dark-amt));
+                }
+            }
+
+            &.mis2 {
+                .t {
+                    border-left: $border-indicator-width dotted $mis-color;
+                }
+
+                &.show_mis .t {
+                    background: mix($light-mis-bg, $light-bg, $multi-dim-amt);
+                    @include background-dark(mix($dark-mis-bg, $dark-bg, $multi-dim-amt));
+
+                    &:hover {
+                        background: mix($light-mis-bg, $light-fg, $hover-dark-amt);
+                        @include background-dark(mix($dark-mis-bg, $dark-fg, $hover-dark-amt));
+                    }
+                }
+            }
+        }
+
+        &.run {
+            .t {
+                border-left: $border-indicator-width solid $run-color;
+            }
+
+            &.show_run .t {
+                background: $light-run-bg;
+                @include background-dark($dark-run-bg);
+
+                &:hover {
+                    background: mix($light-run-bg, $light-fg, $hover-dark-amt);
+                    @include background-dark(mix($dark-run-bg, $dark-fg, $hover-dark-amt));
+                }
+            }
+
+            &.run2 {
+                .t {
+                    border-left: $border-indicator-width dotted $run-color;
+                }
+
+                &.show_run .t {
+                    background: mix($light-run-bg, $light-bg, $multi-dim-amt);
+                    @include background-dark(mix($dark-run-bg, $dark-bg, $multi-dim-amt));
+
+                    &:hover {
+                        background: mix($light-run-bg, $light-fg, $hover-dark-amt);
+                        @include background-dark(mix($dark-run-bg, $dark-fg, $hover-dark-amt));
+                    }
+                }
+            }
+        }
+
+        &.exc {
+            .t {
+                border-left: $border-indicator-width solid $exc-color;
+            }
+
+            &.show_exc .t {
+                background: $light-exc-bg;
+                @include background-dark($dark-exc-bg);
+
+                &:hover {
+                    background: mix($light-exc-bg, $light-fg, $hover-dark-amt);
+                    @include background-dark(mix($dark-exc-bg, $dark-fg, $hover-dark-amt));
+                }
+            }
+
+            &.exc2 {
+                .t {
+                    border-left: $border-indicator-width dotted $exc-color;
+                }
+
+                &.show_exc .t {
+                    background: mix($light-exc-bg, $light-bg, $multi-dim-amt);
+                    @include background-dark(mix($dark-exc-bg, $dark-bg, $multi-dim-amt));
+
+                    &:hover {
+                        background: mix($light-exc-bg, $light-fg, $hover-dark-amt);
+                        @include background-dark(mix($dark-exc-bg, $dark-fg, $hover-dark-amt));
+                    }
+                }
+            }
+        }
+
+        &.par {
+            .t {
+                border-left: $border-indicator-width solid $par-color;
+            }
+
+            &.show_par .t {
+                background: $light-par-bg;
+                @include background-dark($dark-par-bg);
+
+                &:hover {
+                    background: mix($light-par-bg, $light-fg, $hover-dark-amt);
+                    @include background-dark(mix($dark-par-bg, $dark-fg, $hover-dark-amt));
+                }
+            }
+
+            &.par2 {
+                .t {
+                    border-left: $border-indicator-width dotted $par-color;
+                }
+
+                &.show_par .t {
+                    background: mix($light-par-bg, $light-bg, $multi-dim-amt);
+                    @include background-dark(mix($dark-par-bg, $dark-bg, $multi-dim-amt));
+
+                    &:hover {
+                        background: mix($light-par-bg, $light-fg, $hover-dark-amt);
+                        @include background-dark(mix($dark-par-bg, $dark-fg, $hover-dark-amt));
+                    }
+                }
+            }
+        }
+
+        .r {
+            position: absolute;
+            top: 0;
+            right: 2.5em;
+            font-family: $font-normal;
+        }
+
+        .annotate {
+            font-family: $font-normal;
+            color: $light-gray5;
+            @include color-dark($dark-gray6);
+            padding-right: .5em;
+
+            &.short:hover ~ .long {
+                display: block;
+            }
+
+            &.long {
+                @extend %in-text-popup;
+                width: 30em;
+                right: 2.5em;
+            }
+        }
+
+        input {
+            display: none;
+
+            & ~ .r label.ctx {
+                cursor: pointer;
+                border-radius: .25em;
+                &::before {
+                    content: "▶ ";
+                }
+                &:hover {
+                    background: mix($light-context-bg-color, $light-bg, $off-button-lighten);
+                    @include background-dark(mix($dark-context-bg-color, $dark-bg, $off-button-lighten));
+                    color: $light-gray5;
+                    @include color-dark($dark-gray5);
+                }
+            }
+
+            &:checked ~ .r label.ctx {
+                background: $light-context-bg-color;
+                @include background-dark($dark-context-bg-color);
+                color: $light-gray5;
+                @include color-dark($dark-gray5);
+                border-radius: .75em .75em 0 0;
+                padding: 0 .5em;
+                margin: -.25em 0;
+                &::before {
+                    content: "▼ ";
+                }
+            }
+
+            &:checked ~ .ctxs {
+                padding: .25em .5em;
+                overflow-y: scroll;
+                max-height: 10.5em;
+            }
+        }
+
+        label.ctx {
+            color: $light-gray4;
+            @include color-dark($dark-gray4);
+            display: inline-block;
+            padding: 0 .5em;
+            font-size: .8333em;   // 10/12
+        }
+
+        .ctxs {
+            display: block;
+            max-height: 0;
+            overflow-y: hidden;
+            transition: all .2s;
+            padding: 0 .5em;
+            font-family: $font-normal;
+            white-space: nowrap;
+            background: $light-context-bg-color;
+            @include background-dark($dark-context-bg-color);
+            border-radius: .25em;
+            margin-right: 1.75em;
+            text-align: right;
+        }
+    }
+}
+
+
+// index styles
+#index {
+    font-family: $font-code;
+    font-size: 0.875em;
+
+    table.index {
+        margin-left: -.5em;
+    }
+    td, th {
+        text-align: right;
+        vertical-align: baseline;
+        padding: .25em .5em;
+        border-bottom: 1px solid $light-gray2;
+        @include border-color-dark($dark-gray2);
+        &.name {
+            text-align: left;
+            width: auto;
+            font-family: $font-normal;
+            min-width: 15em;
+        }
+        &.left {
+            text-align: left;
+        }
+        &.spacer {
+            border: none;
+            padding: 0;
+            &:hover {
+                background: inherit;
+            }
+        }
+    }
+    th {
+        font-family: $font-normal;
+        font-style: italic;
+        color: $light-gray6;
+        @include color-dark($dark-gray6);
+        border-color: $light-gray3;
+        @include border-color-dark($dark-gray3);
+        cursor: pointer;
+        &:hover {
+            background: $light-gray2;
+            @include background-dark($dark-gray2);
+        }
+        .arrows {
+            color: #666;
+            font-size: 85%;
+            font-family: sans-serif;
+            font-style: normal;
+            pointer-events: none;
+        }
+        &[aria-sort="ascending"], &[aria-sort="descending"] {
+            white-space: nowrap;
+            background: $light-gray2;
+            @include background-dark($dark-gray2);
+            padding-left: .5em;
+        }
+        &[aria-sort="ascending"] .arrows::after {
+            content: " ▲";
+        }
+        &[aria-sort="descending"] .arrows::after {
+            content: " ▼";
+        }
+    }
+    tr.grouphead {
+        th {
+            cursor: default;
+            font-style: normal;
+            border-color: $light-gray4;
+            @include border-color-dark($dark-gray4);
+        }
+    }
+    td.name {
+        font-size: 1.15em;
+        a {
+          text-decoration: none;
+          color: inherit;
+        }
+        & .no-noun {
+          font-style: italic;
+        }
+    }
+
+    tr.total td,
+    tr.total_dynamic td {
+        font-weight: bold;
+        border-bottom: none;
+    }
+    tr.region:hover {
+        background: $light-gray2;
+        @include background-dark($dark-gray2);
+        td.name {
+            text-decoration: underline;
+            color: inherit;
+        }
+    }
+}
+
+// scroll marker styles
+#scroll_marker {
+    position: fixed;
+    z-index: 3;
+    right: 0;
+    top: 0;
+    width: 16px;
+    height: 100%;
+    background: $light-bg;
+    border-left: 1px solid $light-gray2;
+    @include background-dark($dark-bg);
+    @include border-color-dark($dark-gray2);
+    will-change: transform; // for faster scrolling of fixed element in Chrome
+
+    .marker {
+        background: $light-gray3;
+        @include background-dark($dark-gray3);
+        position: absolute;
+        min-height: 3px;
+        width: 100%;
+    }
+}

calculator/lib/python3.12/site-packages/coverage/inorout.py

@@ -0,0 +1,654 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Determining whether files are being measured/reported or not."""
+
+from __future__ import annotations
+
+import importlib.util
+import inspect
+import itertools
+import os
+import os.path
+import sys
+import sysconfig
+import traceback
+from collections.abc import Iterable
+from dataclasses import dataclass
+from types import FrameType, ModuleType
+from typing import TYPE_CHECKING, Any, cast
+
+from coverage import env
+from coverage.disposition import FileDisposition, disposition_init
+from coverage.exceptions import ConfigError, CoverageException, PluginError
+from coverage.files import (
+    GlobMatcher,
+    ModuleMatcher,
+    TreeMatcher,
+    canonical_filename,
+    find_python_files,
+    prep_patterns,
+)
+from coverage.misc import isolate_module, sys_modules_saved
+from coverage.python import source_for_file, source_for_morf
+from coverage.types import TDebugCtl, TFileDisposition, TMorf, TWarnFn
+
+if TYPE_CHECKING:
+    from coverage.config import CoverageConfig
+    from coverage.plugin_support import Plugins
+
+
+os = isolate_module(os)
+
+
+def canonical_path(morf: TMorf, directory: bool = False) -> str:
+    """Return the canonical path of the module or file `morf`.
+
+    If the module is a package, then return its directory. If it is a
+    module, then return its file, unless `directory` is True, in which
+    case return its enclosing directory.
+
+    """
+    morf_path = canonical_filename(source_for_morf(morf))
+    if morf_path.endswith("__init__.py") or directory:
+        morf_path = os.path.split(morf_path)[0]
+    return morf_path
+
+
+def name_for_module(filename: str, frame: FrameType | None) -> str | None:
+    """Get the name of the module for a filename and frame.
+
+    For configurability's sake, we allow __main__ modules to be matched by
+    their importable name.
+
+    If loaded via runpy (aka -m), we can usually recover the "original"
+    full dotted module name, otherwise, we resort to interpreting the
+    file name to get the module's name.  In the case that the module name
+    can't be determined, None is returned.
+
+    """
+    module_globals = frame.f_globals if frame is not None else {}
+    dunder_name: str | None = module_globals.get("__name__", None)
+
+    if isinstance(dunder_name, str) and dunder_name != "__main__":
+        # This is the usual case: an imported module.
+        return dunder_name
+
+    spec = module_globals.get("__spec__", None)
+    if spec:
+        fullname = spec.name
+        if isinstance(fullname, str) and fullname != "__main__":
+            # Module loaded via: runpy -m
+            return fullname
+
+    # Script as first argument to Python command line.
+    inspectedname = inspect.getmodulename(filename)
+    if inspectedname is not None:
+        return inspectedname
+    else:
+        return dunder_name
+
+
+def module_is_namespace(mod: ModuleType) -> bool:
+    """Is the module object `mod` a PEP420 namespace module?"""
+    return hasattr(mod, "__path__") and getattr(mod, "__file__", None) is None
+
+
+def module_has_file(mod: ModuleType) -> bool:
+    """Does the module object `mod` have an existing __file__ ?"""
+    mod__file__ = getattr(mod, "__file__", None)
+    if mod__file__ is None:
+        return False
+    return os.path.exists(mod__file__)
+
+
+def file_and_path_for_module(modulename: str) -> tuple[str | None, list[str]]:
+    """Find the file and search path for `modulename`.
+
+    Returns:
+        filename: The filename of the module, or None.
+        path: A list (possibly empty) of directories to find submodules in.
+
+    """
+    filename = None
+    path = []
+    try:
+        spec = importlib.util.find_spec(modulename)
+    except Exception:
+        pass
+    else:
+        if spec is not None:
+            filename = spec.origin
+            path = list(spec.submodule_search_locations or ())
+    return filename, path
+
+
+def _add_sysconfig_paths(paths: set[str], path_names: list[str]) -> None:
+    """Get paths from `sysconfig.get_paths`"""
+    scheme_names = set(sysconfig.get_scheme_names())
+
+    for scheme in scheme_names:
+        config_paths = sysconfig.get_paths(scheme)
+        for path_name in path_names:
+            if path_name in config_paths:
+                paths.add(config_paths[path_name])
+
+
+def _add_stdlib_paths(paths: set[str]) -> None:
+    """Add paths where the stdlib can be found to the set `paths`."""
+    _add_sysconfig_paths(paths, ["stdlib", "platstdlib"])
+
+
+def _add_third_party_paths(paths: set[str]) -> None:
+    """Add locations for third-party packages to the set `paths`."""
+
+    # These sysconfig locations are where third-party packages are installed.
+    _add_sysconfig_paths(paths, ["platlib", "purelib", "scripts"])
+
+    # Any importable directory that is a venv is also a third-party location.
+    for d in sys.path:
+        detail = _analyze_directory(d)
+        if detail.exists and detail.venv is not None:
+            paths.add(d)
+
+
+def _add_coverage_paths(paths: set[str]) -> None:
+    """Add paths where coverage.py code can be found to the set `paths`."""
+    cover_path = canonical_path(__file__, directory=True)
+    paths.add(cover_path)
+    if env.TESTING:
+        # Don't include our own test code.
+        paths.add(os.path.join(cover_path, "tests"))
+
+
+@dataclass
+class DirectoryDetail:
+    """Details about a directory."""
+
+    exists: bool
+    venv: str | None
+
+
+def _analyze_directory(d: str) -> DirectoryDetail:
+    """Analyze the directory `d` for existence and venv status."""
+    detail = DirectoryDetail(exists=os.path.exists(d), venv=None)
+    if detail.exists:
+        while True:
+            d = os.path.dirname(d)
+            if d == os.path.dirname(d):
+                break
+            pyvenv = os.path.join(d, "pyvenv.cfg")
+            if os.path.exists(pyvenv):
+                detail.venv = d
+                break
+    return detail
+
+
+def _dir_detail(d: str) -> str:
+    """Get a string describing the directory `d` for debugging."""
+    detail = _analyze_directory(d)
+    if not detail.exists:
+        describe = "does not exist"
+    elif detail.venv is not None:
+        describe = f"venv at {detail.venv}"
+    else:
+        describe = "not a venv"
+    return f"{d!r} ({describe})"
+
+
+class InOrOut:
+    """Machinery for determining what files to measure."""
+
+    def __init__(
+        self,
+        config: CoverageConfig,
+        warn: TWarnFn,
+        debug: TDebugCtl | None,
+        include_namespace_packages: bool,
+    ) -> None:
+        self.warn = warn
+        self.debug = debug
+        self.include_namespace_packages = include_namespace_packages
+
+        self.plugins: Plugins
+        self.disp_class: type[TFileDisposition] = FileDisposition
+
+        self.source_pkgs: list[str] = list(config.source_pkgs)
+        self.source_dirs: list[str] = list(config.source_dirs)
+        for src in config.source or []:
+            if os.path.isdir(src):
+                self.source_dirs.append(src)
+            else:
+                self.source_pkgs.append(src)
+
+        # Canonicalize everything in `source_dirs`.
+        # Also confirm that they actually are directories.
+        for i, src in enumerate(self.source_dirs):
+            if not os.path.isdir(src):
+                raise ConfigError(f"Source dir is not a directory: {src!r}")
+            self.source_dirs[i] = canonical_filename(src)
+
+        self.source_pkgs_unmatched = self.source_pkgs[:]
+
+        self.include = prep_patterns(config.run_include)
+        self.omit = prep_patterns(config.run_omit)
+
+        # The directories for files considered "installed with the interpreter".
+        self.pylib_paths: set[str] = set()
+        if not config.cover_pylib:
+            _add_stdlib_paths(self.pylib_paths)
+
+        # To avoid tracing the coverage.py code itself, we skip anything
+        # located where we are.
+        self.cover_paths: set[str] = set()
+        _add_coverage_paths(self.cover_paths)
+
+        # Find where third-party packages are installed.
+        self.third_paths: set[str] = set()
+        _add_third_party_paths(self.third_paths)
+
+        # Generally useful information
+        if self.debug:
+            self._debug("sysconfig paths:")
+            for scheme in sorted(sysconfig.get_scheme_names()):
+                self._debug(f"    {scheme}:")
+                for k, v in sysconfig.get_paths(scheme).items():
+                    self._debug(f"        {k}: {_dir_detail(v)}")
+
+        # Create the matchers we need for should_trace
+        self.source_match = None
+        self.source_pkgs_match = None
+        self.pylib_match = None
+        self.include_match = None
+        self.omit_match = None
+
+        if self.source_dirs or self.source_pkgs:
+            if self.source_dirs:
+                self.source_match = TreeMatcher(
+                    self.source_dirs, "source", "Source directory", self._debug
+                )
+            if self.source_pkgs:
+                self.source_pkgs_match = ModuleMatcher(
+                    self.source_pkgs, "source_pkgs", "Source imports", self._debug
+                )
+        else:
+            if self.pylib_paths:
+                self.pylib_match = TreeMatcher(
+                    self.pylib_paths, "pylib", "Python stdlib", self._debug
+                )
+        if self.include:
+            self.include_match = GlobMatcher(self.include, "include", "Include", self._debug)
+        if self.omit:
+            self.omit_match = GlobMatcher(self.omit, "omit", "Omit", self._debug)
+
+        self.coverage_match = TreeMatcher(
+            self.cover_paths, "coverage", "Coverage code", self._debug
+        )
+
+        self.last_sys_path = list(sys.path)
+        self.set_matchers_depending_on_syspath()
+
+    def _debug(self, msg: str) -> None:
+        """A more convenient way to write debug messages."""
+        if self.debug:
+            self.debug.write(msg)
+
+    def set_matchers_depending_on_syspath(self) -> None:
+        """Set up matchers that depend on sys.path.
+
+        This is called at initialization time, and later if sys.path changes,
+        which can happen when test runners like pytest manipulate sys.path.
+
+        """
+        self._debug("sys.path:" + "".join(f"\n    {_dir_detail(d)}" for d in sys.path))
+
+        self.third_paths = set()
+        _add_third_party_paths(self.third_paths)
+        self.third_match = TreeMatcher(self.third_paths, "third", "Third-party lib", self._debug)
+
+        # Check if the source we want to measure has been installed as a
+        # third-party package.
+        # Is the source inside a third-party area?
+        self.source_in_third_paths = set()
+        with sys_modules_saved():
+            for pkg in self.source_pkgs:
+                try:
+                    modfile, path = file_and_path_for_module(pkg)
+                    self._debug(f"Imported source package {pkg!r} as {modfile!r}")
+                except CoverageException as exc:
+                    self._debug(f"Couldn't import source package {pkg!r}: {exc}")
+                    continue
+                if modfile:
+                    if self.third_match.match(modfile):
+                        self._debug(
+                            f"Source in third-party: source_pkg {pkg!r} at {modfile!r}",
+                        )
+                        self.source_in_third_paths.add(canonical_path(source_for_file(modfile)))
+                else:
+                    for pathdir in path:
+                        if self.third_match.match(pathdir):
+                            self._debug(
+                                f"Source in third-party: {pkg!r} path directory at {pathdir!r}",
+                            )
+                            self.source_in_third_paths.add(pathdir)
+
+        for src in self.source_dirs:
+            if self.third_match.match(src):
+                self._debug(f"Source in third-party: source directory {src!r}")
+                self.source_in_third_paths.add(src)
+        self.source_in_third_match = TreeMatcher(
+            self.source_in_third_paths, "source_in_third", "Source in third-party", self._debug
+        )
+
+    def should_trace(self, filename: str, frame: FrameType | None = None) -> TFileDisposition:
+        """Decide whether to trace execution in `filename`, with a reason.
+
+        This function is called from the trace function.  As each new file name
+        is encountered, this function determines whether it is traced or not.
+
+        Returns a FileDisposition object.
+
+        """
+        if sys.path != self.last_sys_path:
+            self.set_matchers_depending_on_syspath()
+            self.last_sys_path = list(sys.path)
+
+        original_filename = filename
+        disp = disposition_init(self.disp_class, filename)
+
+        def nope(disp: TFileDisposition, reason: str) -> TFileDisposition:
+            """Simple helper to make it easy to return NO."""
+            disp.trace = False
+            disp.reason = reason
+            return disp
+
+        if original_filename.startswith("<"):
+            return nope(disp, "original file name is not real")
+
+        if frame is not None:
+            # Compiled Python files have two file names: frame.f_code.co_filename is
+            # the file name at the time the .pyc was compiled.  The second name is
+            # __file__, which is where the .pyc was actually loaded from.  Since
+            # .pyc files can be moved after compilation (for example, by being
+            # installed), we look for __file__ in the frame and prefer it to the
+            # co_filename value.
+            dunder_file = frame.f_globals and frame.f_globals.get("__file__")
+            if dunder_file:
+                # Danger: __file__ can (rarely?) be of type Path.
+                filename = source_for_file(str(dunder_file))
+                if original_filename and not original_filename.startswith("<"):
+                    orig = os.path.basename(original_filename)
+                    if orig != os.path.basename(filename):
+                        # Files shouldn't be renamed when moved. This happens when
+                        # exec'ing code.  If it seems like something is wrong with
+                        # the frame's file name, then just use the original.
+                        filename = original_filename
+
+        if not filename:
+            # Empty string is pretty useless.
+            return nope(disp, "empty string isn't a file name")
+
+        if filename.startswith("memory:"):
+            return nope(disp, "memory isn't traceable")
+
+        if filename.startswith("<"):
+            # Lots of non-file execution is represented with artificial
+            # file names like "<string>", "<doctest readme.txt[0]>", or
+            # "<exec_function>".  Don't ever trace these executions, since we
+            # can't do anything with the data later anyway.
+            return nope(disp, "file name is not real")
+
+        canonical = canonical_filename(filename)
+        disp.canonical_filename = canonical
+
+        # Try the plugins, see if they have an opinion about the file.
+        plugin = None
+        for plugin in self.plugins.file_tracers:
+            if not plugin._coverage_enabled:
+                continue
+
+            try:
+                file_tracer = plugin.file_tracer(canonical)
+                if file_tracer is not None:
+                    file_tracer._coverage_plugin = plugin
+                    disp.trace = True
+                    disp.file_tracer = file_tracer
+                    if file_tracer.has_dynamic_source_filename():
+                        disp.has_dynamic_filename = True
+                    else:
+                        disp.source_filename = canonical_filename(
+                            file_tracer.source_filename(),
+                        )
+                    break
+            except Exception:
+                plugin_name = plugin._coverage_plugin_name
+                tb = traceback.format_exc()
+                self.warn(f"Disabling plug-in {plugin_name!r} due to an exception:\n{tb}")
+                plugin._coverage_enabled = False
+                continue
+        else:
+            # No plugin wanted it: it's Python.
+            disp.trace = True
+            disp.source_filename = canonical
+
+        if not disp.has_dynamic_filename:
+            if not disp.source_filename:
+                raise PluginError(
+                    f"Plugin {plugin!r} didn't set source_filename for '{disp.original_filename}'",
+                )
+            reason = self.check_include_omit_etc(disp.source_filename, frame)
+            if reason:
+                nope(disp, reason)
+
+        return disp
+
+    def check_include_omit_etc(self, filename: str, frame: FrameType | None) -> str | None:
+        """Check a file name against the include, omit, etc, rules.
+
+        Returns a string or None.  String means, don't trace, and is the reason
+        why.  None means no reason found to not trace.
+
+        """
+        modulename = name_for_module(filename, frame)
+
+        # If the user specified source or include, then that's authoritative
+        # about the outer bound of what to measure and we don't have to apply
+        # any canned exclusions. If they didn't, then we have to exclude the
+        # stdlib and coverage.py directories.
+        if self.source_match or self.source_pkgs_match:
+            extra = ""
+            ok = False
+            if self.source_pkgs_match:
+                if isinstance(modulename, str) and self.source_pkgs_match.match(modulename):
+                    ok = True
+                    if modulename in self.source_pkgs_unmatched:
+                        self.source_pkgs_unmatched.remove(modulename)
+                else:
+                    extra = f"module {modulename!r} "
+            if not ok and self.source_match:
+                if self.source_match.match(filename):
+                    ok = True
+            if not ok:
+                return extra + "falls outside the --source spec"
+            if self.third_match.match(filename) and not self.source_in_third_match.match(filename):
+                return "inside --source, but is third-party"
+        elif self.include_match:
+            if not self.include_match.match(filename):
+                return "falls outside the --include trees"
+        else:
+            # We exclude the coverage.py code itself, since a little of it
+            # will be measured otherwise.
+            if self.coverage_match.match(filename):
+                return "is part of coverage.py"
+
+            # Exclude anything in the third-party installation areas. Check this before
+            # the stdlib, since site-packages is nested inside the stdlib area. If we
+            # do it the other way around, third-party code will be labeled as stdlib
+            # in the debug output.
+            if self.third_match.match(filename):
+                return "is a third-party module"
+
+            # If we aren't supposed to trace installed code, then check if this
+            # is in the Python standard library and skip it if so.
+            if self.pylib_match and self.pylib_match.match(filename):
+                return "is in the stdlib"
+
+        # Check the file against the omit pattern.
+        if self.omit_match and self.omit_match.match(filename):
+            return "is inside an --omit pattern"
+
+        # No point tracing a file we can't later write to SQLite.
+        try:
+            filename.encode("utf-8")
+        except UnicodeEncodeError:
+            return "non-encodable filename"
+
+        # No reason found to skip this file.
+        return None
+
+    def warn_conflicting_settings(self) -> None:
+        """Warn if there are settings that conflict."""
+        if self.include:
+            if self.source_dirs or self.source_pkgs:
+                self.warn("--include is ignored because --source is set", slug="include-ignored")
+
+    def warn_already_imported_files(self) -> None:
+        """Warn if files have already been imported that we will be measuring."""
+        if self.include or self.source_dirs or self.source_pkgs:
+            warned = set()
+            for mod in list(sys.modules.values()):
+                filename = getattr(mod, "__file__", None)
+                if filename is None:
+                    continue
+                if filename in warned:
+                    continue
+
+                if len(getattr(mod, "__path__", ())) > 1:
+                    # A namespace package, which confuses this code, so ignore it.
+                    continue
+
+                disp = self.should_trace(filename)
+                if disp.has_dynamic_filename:
+                    # A plugin with dynamic filenames: the Python file
+                    # shouldn't cause a warning, since it won't be the subject
+                    # of tracing anyway.
+                    continue
+                if disp.trace:
+                    msg = f"Already imported a file that will be measured: {filename}"
+                    self.warn(msg, slug="already-imported")
+                    warned.add(filename)
+                elif self.debug and self.debug.should("trace"):
+                    self.debug.write(
+                        "Didn't trace already imported file {!r}: {}".format(
+                            disp.original_filename,
+                            disp.reason,
+                        ),
+                    )
+
+    def warn_unimported_source(self) -> None:
+        """Warn about source packages that were of interest, but never traced."""
+        for pkg in self.source_pkgs_unmatched:
+            self._warn_about_unmeasured_code(pkg)
+
+    def _warn_about_unmeasured_code(self, pkg: str) -> None:
+        """Warn about a package or module that we never traced.
+
+        `pkg` is a string, the name of the package or module.
+
+        """
+        mod = sys.modules.get(pkg)
+        if mod is None:
+            self.warn(f"Module {pkg} was never imported.", slug="module-not-imported")
+            return
+
+        if module_is_namespace(mod):
+            # A namespace package. It's OK for this not to have been traced,
+            # since there is no code directly in it.
+            return
+
+        if not module_has_file(mod):
+            self.warn(f"Module {pkg} has no Python source.", slug="module-not-python")
+            return
+
+        # The module was in sys.modules, and seems like a module with code, but
+        # we never measured it. I guess that means it was imported before
+        # coverage even started.
+        msg = f"Module {pkg} was previously imported, but not measured"
+        self.warn(msg, slug="module-not-measured")
+
+    def find_possibly_unexecuted_files(self) -> Iterable[tuple[str, str | None]]:
+        """Find files in the areas of interest that might be untraced.
+
+        Yields pairs: file path, and responsible plug-in name.
+        """
+        for pkg in self.source_pkgs:
+            if pkg not in sys.modules or not module_has_file(sys.modules[pkg]):
+                continue
+            pkg_file = source_for_file(cast(str, sys.modules[pkg].__file__))
+            yield from self._find_executable_files(canonical_path(pkg_file))
+
+        for src in self.source_dirs:
+            yield from self._find_executable_files(src)
+
+    def _find_plugin_files(self, src_dir: str) -> Iterable[tuple[str, str]]:
+        """Get executable files from the plugins."""
+        for plugin in self.plugins.file_tracers:
+            for x_file in plugin.find_executable_files(src_dir):
+                yield x_file, plugin._coverage_plugin_name
+
+    def _find_executable_files(self, src_dir: str) -> Iterable[tuple[str, str | None]]:
+        """Find executable files in `src_dir`.
+
+        Search for files in `src_dir` that can be executed because they
+        are probably importable. Don't include ones that have been omitted
+        by the configuration.
+
+        Yield the file path, and the plugin name that handles the file.
+
+        """
+        py_files = (
+            (py_file, None)
+            for py_file in find_python_files(src_dir, self.include_namespace_packages)
+        )
+        plugin_files = self._find_plugin_files(src_dir)
+
+        for file_path, plugin_name in itertools.chain(py_files, plugin_files):
+            file_path = canonical_filename(file_path)
+            if self.omit_match and self.omit_match.match(file_path):
+                # Turns out this file was omitted, so don't pull it back
+                # in as un-executed.
+                continue
+            yield file_path, plugin_name
+
+    def sys_info(self) -> Iterable[tuple[str, Any]]:
+        """Our information for Coverage.sys_info.
+
+        Returns a list of (key, value) pairs.
+        """
+        info = [
+            ("coverage_paths", self.cover_paths),
+            ("stdlib_paths", self.pylib_paths),
+            ("third_party_paths", self.third_paths),
+            ("source_in_third_party_paths", self.source_in_third_paths),
+        ]
+
+        matcher_names = [
+            "source_match",
+            "source_pkgs_match",
+            "include_match",
+            "omit_match",
+            "coverage_match",
+            "pylib_match",
+            "third_match",
+            "source_in_third_match",
+        ]
+
+        for matcher_name in matcher_names:
+            matcher = getattr(self, matcher_name)
+            if matcher:
+                matcher_info = matcher.info()
+            else:
+                matcher_info = "-none-"
+            info.append((matcher_name, matcher_info))
+
+        return info

calculator/lib/python3.12/site-packages/coverage/jsonreport.py

@@ -0,0 +1,200 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Json reporting for coverage.py"""
+
+from __future__ import annotations
+
+import datetime
+import json
+import sys
+from collections.abc import Iterable
+from typing import IO, TYPE_CHECKING, Any
+
+from coverage import __version__
+from coverage.report_core import get_analysis_to_report
+from coverage.results import Analysis, AnalysisNarrower, Numbers
+from coverage.types import TLineNo, TMorfs
+
+if TYPE_CHECKING:
+    from coverage import Coverage
+    from coverage.data import CoverageData
+    from coverage.plugin import FileReporter
+
+
+# A type for data that can be JSON-serialized.
+JsonObj = dict[str, Any]
+
+# "Version 1" had no format number at all.
+# 2: add the meta.format field.
+# 3: add region information (functions, classes)
+FORMAT_VERSION = 3
+
+
+class JsonReporter:
+    """A reporter for writing JSON coverage results."""
+
+    report_type = "JSON report"
+
+    def __init__(self, coverage: Coverage) -> None:
+        self.coverage = coverage
+        self.config = self.coverage.config
+        self.total = Numbers(self.config.precision)
+        self.report_data: JsonObj = {}
+
+    def make_summary(self, nums: Numbers) -> JsonObj:
+        """Create a dict summarizing `nums`."""
+        return {
+            "covered_lines": nums.n_executed,
+            "num_statements": nums.n_statements,
+            "percent_covered": nums.pc_covered,
+            "percent_covered_display": nums.pc_covered_str,
+            "missing_lines": nums.n_missing,
+            "excluded_lines": nums.n_excluded,
+            "percent_statements_covered": nums.pc_statements,
+            "percent_statements_covered_display": nums.pc_statements_str,
+        }
+
+    def make_branch_summary(self, nums: Numbers) -> JsonObj:
+        """Create a dict summarizing the branch info in `nums`."""
+        return {
+            "num_branches": nums.n_branches,
+            "num_partial_branches": nums.n_partial_branches,
+            "covered_branches": nums.n_executed_branches,
+            "missing_branches": nums.n_missing_branches,
+            "percent_branches_covered": nums.pc_branches,
+            "percent_branches_covered_display": nums.pc_branches_str,
+        }
+
+    def report(self, morfs: TMorfs, outfile: IO[str]) -> float:
+        """Generate a json report for `morfs`.
+
+        `morfs` is a list of modules or file names.
+
+        `outfile` is a file object to write the json to.
+
+        """
+        outfile = outfile or sys.stdout
+        coverage_data = self.coverage.get_data()
+        coverage_data.set_query_contexts(self.config.report_contexts)
+        self.report_data["meta"] = {
+            "format": FORMAT_VERSION,
+            "version": __version__,
+            "timestamp": datetime.datetime.now().isoformat(),
+            "branch_coverage": coverage_data.has_arcs(),
+            "show_contexts": self.config.json_show_contexts,
+        }
+
+        measured_files = {}
+        for file_reporter, analysis in get_analysis_to_report(self.coverage, morfs):
+            measured_files[file_reporter.relative_filename()] = self.report_one_file(
+                coverage_data,
+                analysis,
+                file_reporter,
+            )
+
+        self.report_data["files"] = measured_files
+        self.report_data["totals"] = self.make_summary(self.total)
+
+        if coverage_data.has_arcs():
+            self.report_data["totals"].update(self.make_branch_summary(self.total))
+
+        json.dump(
+            self.report_data,
+            outfile,
+            indent=(4 if self.config.json_pretty_print else None),
+        )
+
+        return self.total.n_statements and self.total.pc_covered
+
+    def report_one_file(
+        self, coverage_data: CoverageData, analysis: Analysis, file_reporter: FileReporter
+    ) -> JsonObj:
+        """Extract the relevant report data for a single file."""
+        nums = analysis.numbers
+        self.total += nums
+        summary = self.make_summary(nums)
+        reported_file: JsonObj = {
+            "executed_lines": sorted(analysis.executed),
+            "summary": summary,
+            "missing_lines": sorted(analysis.missing),
+            "excluded_lines": sorted(analysis.excluded),
+        }
+        if self.config.json_show_contexts:
+            reported_file["contexts"] = coverage_data.contexts_by_lineno(analysis.filename)
+        if coverage_data.has_arcs():
+            summary.update(self.make_branch_summary(nums))
+            reported_file["executed_branches"] = list(
+                _convert_branch_arcs(analysis.executed_branch_arcs()),
+            )
+            reported_file["missing_branches"] = list(
+                _convert_branch_arcs(analysis.missing_branch_arcs()),
+            )
+
+        num_lines = len(file_reporter.source().splitlines())
+        regions = file_reporter.code_regions()
+        for noun, plural in file_reporter.code_region_kinds():
+            outside_lines = set(range(1, num_lines + 1))
+            for region in regions:
+                if region.kind != noun:
+                    continue
+                outside_lines -= region.lines
+
+            narrower = AnalysisNarrower(analysis)
+            narrower.add_regions(r.lines for r in regions if r.kind == noun)
+            narrower.add_regions([outside_lines])
+
+            reported_file[plural] = region_data = {}
+            for region in regions:
+                if region.kind != noun:
+                    continue
+                region_data[region.name] = self.make_region_data(
+                    coverage_data,
+                    narrower.narrow(region.lines),
+                    region.start,
+                )
+
+            region_data[""] = self.make_region_data(
+                coverage_data,
+                narrower.narrow(outside_lines),
+                min(outside_lines, default=1),
+            )
+        return reported_file
+
+    def make_region_data(
+        self,
+        coverage_data: CoverageData,
+        narrowed_analysis: Analysis,
+        start_line: int,
+    ) -> JsonObj:
+        """Create the data object for one region of a file."""
+        narrowed_nums = narrowed_analysis.numbers
+        narrowed_summary = self.make_summary(narrowed_nums)
+        this_region = {
+            "executed_lines": sorted(narrowed_analysis.executed),
+            "summary": narrowed_summary,
+            "missing_lines": sorted(narrowed_analysis.missing),
+            "excluded_lines": sorted(narrowed_analysis.excluded),
+            "start_line": start_line,
+        }
+        if self.config.json_show_contexts:
+            contexts = coverage_data.contexts_by_lineno(narrowed_analysis.filename)
+            this_region["contexts"] = contexts
+        if coverage_data.has_arcs():
+            narrowed_summary.update(self.make_branch_summary(narrowed_nums))
+            this_region["executed_branches"] = list(
+                _convert_branch_arcs(narrowed_analysis.executed_branch_arcs()),
+            )
+            this_region["missing_branches"] = list(
+                _convert_branch_arcs(narrowed_analysis.missing_branch_arcs()),
+            )
+        return this_region
+
+
+def _convert_branch_arcs(
+    branch_arcs: dict[TLineNo, list[TLineNo]],
+) -> Iterable[tuple[TLineNo, TLineNo]]:
+    """Convert branch arcs to a list of two-element tuples."""
+    for source, targets in branch_arcs.items():
+        for target in targets:
+            yield source, target

calculator/lib/python3.12/site-packages/coverage/lcovreport.py

@@ -0,0 +1,218 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""LCOV reporting for coverage.py."""
+
+from __future__ import annotations
+
+import base64
+import hashlib
+import sys
+from typing import IO, TYPE_CHECKING
+
+from coverage.plugin import FileReporter
+from coverage.report_core import get_analysis_to_report
+from coverage.results import Analysis, AnalysisNarrower, Numbers
+from coverage.types import TMorfs
+
+if TYPE_CHECKING:
+    from coverage import Coverage
+
+
+def line_hash(line: str) -> str:
+    """Produce a hash of a source line for use in the LCOV file."""
+    # The LCOV file format optionally allows each line to be MD5ed as a
+    # fingerprint of the file.  This is not a security use.  Some security
+    # scanners raise alarms about the use of MD5 here, but it is a false
+    # positive.  This is not a security concern.
+    # The unusual encoding of the MD5 hash, as a base64 sequence with the
+    # trailing = signs stripped, is specified by the LCOV file format.
+    hashed = hashlib.md5(line.encode("utf-8"), usedforsecurity=False).digest()
+    return base64.b64encode(hashed).decode("ascii").rstrip("=")
+
+
+def lcov_lines(
+    analysis: Analysis,
+    lines: list[int],
+    source_lines: list[str],
+    outfile: IO[str],
+) -> None:
+    """Emit line coverage records for an analyzed file."""
+    hash_suffix = ""
+    for line in lines:
+        if source_lines:
+            hash_suffix = "," + line_hash(source_lines[line - 1])
+        # Q: can we get info about the number of times a statement is
+        # executed?  If so, that should be recorded here.
+        hit = int(line not in analysis.missing)
+        outfile.write(f"DA:{line},{hit}{hash_suffix}\n")
+
+    if analysis.numbers.n_statements > 0:
+        outfile.write(f"LF:{analysis.numbers.n_statements}\n")
+        outfile.write(f"LH:{analysis.numbers.n_executed}\n")
+
+
+def lcov_functions(
+    fr: FileReporter,
+    file_analysis: Analysis,
+    outfile: IO[str],
+) -> None:
+    """Emit function coverage records for an analyzed file."""
+    # lcov 2.2 introduces a new format for function coverage records.
+    # We continue to generate the old format because we don't know what
+    # version of the lcov tools will be used to read this report.
+
+    # "and region.lines" below avoids a crash due to a bug in PyPy 3.8
+    # where, for whatever reason, when collecting data in --branch mode,
+    # top-level functions have an empty lines array.  Instead we just don't
+    # emit function records for those.
+
+    # suppressions because of https://github.com/pylint-dev/pylint/issues/9923
+    functions = [
+        (
+            min(region.start, min(region.lines)),  # pylint: disable=nested-min-max
+            max(region.start, max(region.lines)),  # pylint: disable=nested-min-max
+            region,
+        )
+        for region in fr.code_regions()
+        if region.kind == "function" and region.lines
+    ]
+    if not functions:
+        return
+
+    narrower = AnalysisNarrower(file_analysis)
+    narrower.add_regions(r.lines for _, _, r in functions)
+
+    functions.sort()
+    functions_hit = 0
+    for first_line, last_line, region in functions:
+        # A function counts as having been executed if any of it has been
+        # executed.
+        analysis = narrower.narrow(region.lines)
+        hit = int(analysis.numbers.n_executed > 0)
+        functions_hit += hit
+
+        outfile.write(f"FN:{first_line},{last_line},{region.name}\n")
+        outfile.write(f"FNDA:{hit},{region.name}\n")
+
+    outfile.write(f"FNF:{len(functions)}\n")
+    outfile.write(f"FNH:{functions_hit}\n")
+
+
+def lcov_arcs(
+    fr: FileReporter,
+    analysis: Analysis,
+    lines: list[int],
+    outfile: IO[str],
+) -> None:
+    """Emit branch coverage records for an analyzed file."""
+    branch_stats = analysis.branch_stats()
+    executed_arcs = analysis.executed_branch_arcs()
+    missing_arcs = analysis.missing_branch_arcs()
+
+    for line in lines:
+        if line not in branch_stats:
+            continue
+
+        # This is only one of several possible ways to map our sets of executed
+        # and not-executed arcs to BRDA codes.  It seems to produce reasonable
+        # results when fed through genhtml.
+        _, taken = branch_stats[line]
+
+        if taken == 0:
+            # When _none_ of the out arcs from 'line' were executed,
+            # it can mean the line always raised an exception.
+            assert len(executed_arcs[line]) == 0
+            destinations = [(dst, "-") for dst in missing_arcs[line]]
+        else:
+            # Q: can we get counts of the number of times each arc was executed?
+            # branch_stats has "total" and "taken" counts for each branch,
+            # but it doesn't have "taken" broken down by destination.
+            destinations = [(dst, "1") for dst in executed_arcs[line]]
+            destinations.extend((dst, "0") for dst in missing_arcs[line])
+
+        # Sort exit arcs after normal arcs.  Exit arcs typically come from
+        # an if statement, at the end of a function, with no else clause.
+        # This structure reads like you're jumping to the end of the function
+        # when the conditional expression is false, so it should be presented
+        # as the second alternative for the branch, after the alternative that
+        # enters the if clause.
+        destinations.sort(key=lambda d: (d[0] < 0, d))
+
+        for dst, hit in destinations:
+            branch = fr.arc_description(line, dst)
+            outfile.write(f"BRDA:{line},0,{branch},{hit}\n")
+
+    # Summary of the branch coverage.
+    brf = sum(t for t, k in branch_stats.values())
+    brh = brf - sum(t - k for t, k in branch_stats.values())
+    if brf > 0:
+        outfile.write(f"BRF:{brf}\n")
+        outfile.write(f"BRH:{brh}\n")
+
+
+class LcovReporter:
+    """A reporter for writing LCOV coverage reports."""
+
+    report_type = "LCOV report"
+
+    def __init__(self, coverage: Coverage) -> None:
+        self.coverage = coverage
+        self.config = coverage.config
+        self.total = Numbers(self.coverage.config.precision)
+
+    def report(self, morfs: TMorfs, outfile: IO[str]) -> float:
+        """Renders the full lcov report.
+
+        `morfs` is a list of modules or filenames
+
+        outfile is the file object to write the file into.
+        """
+
+        self.coverage.get_data()
+        outfile = outfile or sys.stdout
+
+        # ensure file records are sorted by the _relative_ filename, not the full path
+        to_report = [
+            (fr.relative_filename(), fr, analysis)
+            for fr, analysis in get_analysis_to_report(self.coverage, morfs)
+        ]
+        to_report.sort()
+
+        for fname, fr, analysis in to_report:
+            self.total += analysis.numbers
+            self.lcov_file(fname, fr, analysis, outfile)
+
+        return self.total.n_statements and self.total.pc_covered
+
+    def lcov_file(
+        self,
+        rel_fname: str,
+        fr: FileReporter,
+        analysis: Analysis,
+        outfile: IO[str],
+    ) -> None:
+        """Produces the lcov data for a single file.
+
+        This currently supports both line and branch coverage,
+        however function coverage is not supported.
+        """
+
+        if analysis.numbers.n_statements == 0:
+            if self.config.skip_empty:
+                return
+
+        outfile.write(f"SF:{rel_fname}\n")
+
+        lines = sorted(analysis.statements)
+        if self.config.lcov_line_checksums:
+            source_lines = fr.source().splitlines()
+        else:
+            source_lines = []
+
+        lcov_lines(analysis, lines, source_lines, outfile)
+        lcov_functions(fr, analysis, outfile)
+        if analysis.has_arcs:
+            lcov_arcs(fr, analysis, lines, outfile)
+
+        outfile.write("end_of_record\n")

calculator/lib/python3.12/site-packages/coverage/misc.py

@@ -0,0 +1,382 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Miscellaneous stuff for coverage.py."""
+
+from __future__ import annotations
+
+import contextlib
+import datetime
+import errno
+import functools
+import hashlib
+import importlib
+import importlib.util
+import inspect
+import os
+import os.path
+import re
+import sys
+import types
+from collections.abc import Iterable, Iterator, Mapping, Sequence
+from types import ModuleType
+from typing import Any, NoReturn, TypeVar
+
+# In 6.0, the exceptions moved from misc.py to exceptions.py.  But a number of
+# other packages were importing the exceptions from misc, so import them here.
+# pylint: disable=unused-wildcard-import
+from coverage.exceptions import *  # pylint: disable=wildcard-import
+from coverage.exceptions import CoverageException
+from coverage.types import TArc
+
+ISOLATED_MODULES: dict[ModuleType, ModuleType] = {}
+
+
+def isolate_module(mod: ModuleType) -> ModuleType:
+    """Copy a module so that we are isolated from aggressive mocking.
+
+    If a test suite mocks os.path.exists (for example), and then we need to use
+    it during the test, everything will get tangled up if we use their mock.
+    Making a copy of the module when we import it will isolate coverage.py from
+    those complications.
+    """
+    if mod not in ISOLATED_MODULES:
+        new_mod = types.ModuleType(mod.__name__)
+        ISOLATED_MODULES[mod] = new_mod
+        for name in dir(mod):
+            value = getattr(mod, name)
+            if isinstance(value, types.ModuleType):
+                value = isolate_module(value)
+            setattr(new_mod, name, value)
+    return ISOLATED_MODULES[mod]
+
+
+os = isolate_module(os)
+
+
+class SysModuleSaver:
+    """Saves the contents of sys.modules, and removes new modules later."""
+
+    def __init__(self) -> None:
+        self.old_modules = set(sys.modules)
+
+    def restore(self) -> None:
+        """Remove any modules imported since this object started."""
+        new_modules = set(sys.modules) - self.old_modules
+        for m in new_modules:
+            del sys.modules[m]
+
+
+@contextlib.contextmanager
+def sys_modules_saved() -> Iterator[None]:
+    """A context manager to remove any modules imported during a block."""
+    saver = SysModuleSaver()
+    try:
+        yield
+    finally:
+        saver.restore()
+
+
+def import_third_party(modname: str) -> tuple[ModuleType, bool]:
+    """Import a third-party module we need, but might not be installed.
+
+    This also cleans out the module after the import, so that coverage won't
+    appear to have imported it.  This lets the third party use coverage for
+    their own tests.
+
+    Arguments:
+        modname (str): the name of the module to import.
+
+    Returns:
+        The imported module, and a boolean indicating if the module could be imported.
+
+    If the boolean is False, the module returned is not the one you want: don't use it.
+
+    """
+    with sys_modules_saved():
+        try:
+            return importlib.import_module(modname), True
+        except ImportError:
+            return sys, False
+
+
+def nice_pair(pair: TArc) -> str:
+    """Make a nice string representation of a pair of numbers.
+
+    If the numbers are equal, just return the number, otherwise return the pair
+    with a dash between them, indicating the range.
+
+    """
+    start, end = pair
+    if start == end:
+        return f"{start}"
+    else:
+        return f"{start}-{end}"
+
+
+def bool_or_none(b: Any) -> bool | None:
+    """Return bool(b), but preserve None."""
+    if b is None:
+        return None
+    else:
+        return bool(b)
+
+
+def join_regex(regexes: Iterable[str]) -> str:
+    """Combine a series of regex strings into one that matches any of them."""
+    regexes = list(regexes)
+    if len(regexes) == 1:
+        return regexes[0]
+    else:
+        return "|".join(f"(?:{r})" for r in regexes)
+
+
+def file_be_gone(path: str) -> None:
+    """Remove a file, and don't get annoyed if it doesn't exist."""
+    try:
+        os.remove(path)
+    except OSError as e:
+        if e.errno != errno.ENOENT:
+            raise
+
+
+def ensure_dir(directory: str) -> None:
+    """Make sure the directory exists.
+
+    If `directory` is None or empty, do nothing.
+    """
+    if directory:
+        os.makedirs(directory, exist_ok=True)
+
+
+def ensure_dir_for_file(path: str) -> None:
+    """Make sure the directory for the path exists."""
+    ensure_dir(os.path.dirname(path))
+
+
+class Hasher:
+    """Hashes Python data for fingerprinting."""
+
+    def __init__(self) -> None:
+        self.hash = hashlib.new("sha3_256", usedforsecurity=False)
+
+    def update(self, v: Any) -> None:
+        """Add `v` to the hash, recursively if needed."""
+        self.hash.update(str(type(v)).encode("utf-8"))
+        match v:
+            case None:
+                pass
+            case str():
+                self.hash.update(f"{len(v)}:".encode())
+                self.hash.update(v.encode("utf-8"))
+            case bytes():
+                self.hash.update(f"{len(v)}:".encode())
+                self.hash.update(v)
+            case int() | float():
+                self.hash.update(str(v).encode("utf-8"))
+            case tuple() | list():
+                for e in v:
+                    self.update(e)
+            case dict():
+                for k, kv in sorted(v.items()):
+                    self.update(k)
+                    self.update(kv)
+            case set():
+                for e in sorted(v):
+                    self.update(e)
+            case _:
+                for k in dir(v):
+                    if k.startswith("__"):
+                        continue
+                    a = getattr(v, k)
+                    if inspect.isroutine(a):
+                        continue
+                    self.update(k)
+                    self.update(a)
+        self.hash.update(b".")
+
+    def digest(self) -> bytes:
+        """Get the full binary digest of the hash."""
+        return self.hash.digest()
+
+    def hexdigest(self) -> str:
+        """Retrieve a 32-char hex digest of the hash."""
+        return self.hash.hexdigest()[:32]
+
+
+def _needs_to_implement(that: Any, func_name: str) -> NoReturn:
+    """Helper to raise NotImplementedError in interface stubs."""
+    if hasattr(that, "_coverage_plugin_name"):
+        thing = "Plugin"
+        name = that._coverage_plugin_name
+    else:
+        thing = "Class"
+        klass = that.__class__
+        name = f"{klass.__module__}.{klass.__name__}"
+
+    raise NotImplementedError(
+        f"{thing} {name!r} needs to implement {func_name}()",
+    )
+
+
+class DefaultValue:
+    """A sentinel object to use for unusual default-value needs.
+
+    Construct with a string that will be used as the repr, for display in help
+    and Sphinx output.
+
+    """
+
+    def __init__(self, display_as: str) -> None:
+        self.display_as = display_as
+
+    def __repr__(self) -> str:
+        return self.display_as
+
+
+def substitute_variables(text: str, variables: Mapping[str, str]) -> str:
+    """Substitute ``${VAR}`` variables in `text` with their values.
+
+    Variables in the text can take a number of shell-inspired forms::
+
+        $VAR
+        ${VAR}
+        ${VAR?}             strict: an error if VAR isn't defined.
+        ${VAR-missing}      defaulted: "missing" if VAR isn't defined.
+        $$                  just a dollar sign.
+
+    `variables` is a dictionary of variable values.
+
+    Returns the resulting text with values substituted.
+
+    """
+    dollar_pattern = r"""(?x)   # Use extended regex syntax
+        \$                      # A dollar sign,
+        (?:                     # then
+            (?P<dollar> \$ ) |      # a dollar sign, or
+            (?P<word1> \w+ ) |      # a plain word, or
+            \{                      # a {-wrapped
+                (?P<word2> \w+ )        # word,
+                (?:                         # either
+                    (?P<strict> \? ) |      # with a strict marker
+                    -(?P<defval> [^}]* )    # or a default value
+                )?                      # maybe.
+            }
+        )
+        """
+
+    dollar_groups = ("dollar", "word1", "word2")
+
+    def dollar_replace(match: re.Match[str]) -> str:
+        """Called for each $replacement."""
+        # Only one of the dollar_groups will have matched, just get its text.
+        word = next(g for g in match.group(*dollar_groups) if g)  # pragma: always breaks
+        if word == "$":
+            return "$"
+        elif word in variables:
+            return variables[word]
+        elif match["strict"]:
+            msg = f"Variable {word} is undefined: {text!r}"
+            raise CoverageException(msg)
+        else:
+            return match["defval"]
+
+    text = re.sub(dollar_pattern, dollar_replace, text)
+    return text
+
+
+def format_local_datetime(dt: datetime.datetime) -> str:
+    """Return a string with local timezone representing the date."""
+    return dt.astimezone().strftime("%Y-%m-%d %H:%M %z")
+
+
+def import_local_file(modname: str, modfile: str | None = None) -> ModuleType:
+    """Import a local file as a module.
+
+    Opens a file in the current directory named `modname`.py, imports it
+    as `modname`, and returns the module object.  `modfile` is the file to
+    import if it isn't in the current directory.
+
+    """
+    if modfile is None:
+        modfile = modname + ".py"
+    spec = importlib.util.spec_from_file_location(modname, modfile)
+    assert spec is not None
+    mod = importlib.util.module_from_spec(spec)
+    sys.modules[modname] = mod
+    assert spec.loader is not None
+    spec.loader.exec_module(mod)
+
+    return mod
+
+
+@functools.cache
+def _human_key(s: str) -> tuple[list[str | int], str]:
+    """Turn a string into a list of string and number chunks.
+
+    "z23a" -> (["z", 23, "a"], "z23a")
+
+    The original string is appended as a last value to ensure the
+    key is unique enough so that "x1y" and "x001y" can be distinguished.
+    """
+
+    def tryint(s: str) -> str | int:
+        """If `s` is a number, return an int, else `s` unchanged."""
+        try:
+            return int(s)
+        except ValueError:
+            return s
+
+    return ([tryint(c) for c in re.split(r"(\d+)", s)], s)
+
+
+def human_sorted(strings: Iterable[str]) -> list[str]:
+    """Sort the given iterable of strings the way that humans expect.
+
+    Numeric components in the strings are sorted as numbers.
+
+    Returns the sorted list.
+
+    """
+    return sorted(strings, key=_human_key)
+
+
+SortableItem = TypeVar("SortableItem", bound=Sequence[Any])
+
+
+def human_sorted_items(
+    items: Iterable[SortableItem],
+    reverse: bool = False,
+) -> list[SortableItem]:
+    """Sort (string, ...) items the way humans expect.
+
+    The elements of `items` can be any tuple/list. They'll be sorted by the
+    first element (a string), with ties broken by the remaining elements.
+
+    Returns the sorted list of items.
+    """
+    return sorted(items, key=lambda item: (_human_key(item[0]), *item[1:]), reverse=reverse)
+
+
+def plural(n: int, thing: str = "", things: str = "") -> str:
+    """Pluralize a word.
+
+    If n is 1, return thing.  Otherwise return things, or thing+s.
+    """
+    if n == 1:
+        noun = thing
+    else:
+        noun = things or (thing + "s")
+    return f"{n} {noun}"
+
+
+def stdout_link(text: str, url: str) -> str:
+    """Format text+url as a clickable link for stdout.
+
+    If attached to a terminal, use escape sequences. Otherwise, just return
+    the text.
+    """
+    if hasattr(sys.stdout, "isatty") and sys.stdout.isatty():
+        return f"\033]8;;{url}\a{text}\033]8;;\a"
+    else:
+        return text

calculator/lib/python3.12/site-packages/coverage/multiproc.py

@@ -0,0 +1,120 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Monkey-patching to add multiprocessing support for coverage.py"""
+
+from __future__ import annotations
+
+import multiprocessing
+import multiprocessing.process
+import os
+import os.path
+import sys
+import traceback
+from typing import Any
+
+from coverage.debug import DebugControl
+
+# An attribute that will be set on the module to indicate that it has been
+# monkey-patched.
+PATCHED_MARKER = "_coverage$patched"
+
+
+OriginalProcess = multiprocessing.process.BaseProcess
+original_bootstrap = OriginalProcess._bootstrap  # type: ignore[attr-defined]
+
+
+class ProcessWithCoverage(OriginalProcess):  # pylint: disable=abstract-method
+    """A replacement for multiprocess.Process that starts coverage."""
+
+    def _bootstrap(self, *args, **kwargs):  # type: ignore[no-untyped-def]
+        """Wrapper around _bootstrap to start coverage."""
+        debug: DebugControl | None = None
+        try:
+            from coverage import Coverage  # avoid circular import
+
+            cov = Coverage(data_suffix=True, auto_data=True)
+            cov._warn_preimported_source = False
+            cov.start()
+            _debug = cov._debug
+            assert _debug is not None
+            if _debug.should("multiproc"):
+                debug = _debug
+            if debug:
+                debug.write("Calling multiprocessing bootstrap")
+        except Exception:
+            print("Exception during multiprocessing bootstrap init:", file=sys.stderr)
+            traceback.print_exc(file=sys.stderr)
+            sys.stderr.flush()
+            raise
+        try:
+            return original_bootstrap(self, *args, **kwargs)
+        finally:
+            if debug:
+                debug.write("Finished multiprocessing bootstrap")
+            try:
+                cov.stop()
+                cov.save()
+            except Exception as exc:
+                if debug:
+                    debug.write("Exception during multiprocessing bootstrap cleanup", exc=exc)
+                raise
+            if debug:
+                debug.write("Saved multiprocessing data")
+
+
+class Stowaway:
+    """An object to pickle, so when it is unpickled, it can apply the monkey-patch."""
+
+    def __init__(self, rcfile: str) -> None:
+        self.rcfile = rcfile
+
+    def __getstate__(self) -> dict[str, str]:
+        return {"rcfile": self.rcfile}
+
+    def __setstate__(self, state: dict[str, str]) -> None:
+        patch_multiprocessing(state["rcfile"])
+
+
+def patch_multiprocessing(rcfile: str) -> None:
+    """Monkey-patch the multiprocessing module.
+
+    This enables coverage measurement of processes started by multiprocessing.
+    This involves aggressive monkey-patching.
+
+    `rcfile` is the path to the rcfile being used.
+
+    """
+
+    if hasattr(multiprocessing, PATCHED_MARKER):
+        return
+
+    OriginalProcess._bootstrap = ProcessWithCoverage._bootstrap  # type: ignore[attr-defined]
+
+    # Set the value in ProcessWithCoverage that will be pickled into the child
+    # process.
+    os.environ["COVERAGE_RCFILE"] = os.path.abspath(rcfile)
+
+    # When spawning processes rather than forking them, we have no state in the
+    # new process.  We sneak in there with a Stowaway: we stuff one of our own
+    # objects into the data that gets pickled and sent to the subprocess. When
+    # the Stowaway is unpickled, its __setstate__ method is called, which
+    # re-applies the monkey-patch.
+    # Windows only spawns, so this is needed to keep Windows working.
+    try:
+        from multiprocessing import spawn
+
+        original_get_preparation_data = spawn.get_preparation_data
+    except (ImportError, AttributeError):
+        pass
+    else:
+
+        def get_preparation_data_with_stowaway(name: str) -> dict[str, Any]:
+            """Get the original preparation data, and also insert our stowaway."""
+            d = original_get_preparation_data(name)
+            d["stowaway"] = Stowaway(rcfile)
+            return d
+
+        spawn.get_preparation_data = get_preparation_data_with_stowaway
+
+    setattr(multiprocessing, PATCHED_MARKER, True)

calculator/lib/python3.12/site-packages/coverage/numbits.py

@@ -0,0 +1,146 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""
+Functions to manipulate packed binary representations of number sets.
+
+To save space, coverage stores sets of line numbers in SQLite using a packed
+binary representation called a numbits.  A numbits is a set of positive
+integers.
+
+A numbits is stored as a blob in the database.  The exact meaning of the bytes
+in the blobs should be considered an implementation detail that might change in
+the future.  Use these functions to work with those binary blobs of data.
+
+"""
+
+from __future__ import annotations
+
+import json
+import sqlite3
+from collections.abc import Iterable
+from itertools import zip_longest
+
+
+def nums_to_numbits(nums: Iterable[int]) -> bytes:
+    """Convert `nums` into a numbits.
+
+    Arguments:
+        nums: a reusable iterable of integers, the line numbers to store.
+
+    Returns:
+        A binary blob.
+    """
+    try:
+        nbytes = max(nums) // 8 + 1
+    except ValueError:
+        # nums was empty.
+        return b""
+    b = bytearray(nbytes)
+    for num in nums:
+        b[num // 8] |= 1 << num % 8
+    return bytes(b)
+
+
+def numbits_to_nums(numbits: bytes) -> list[int]:
+    """Convert a numbits into a list of numbers.
+
+    Arguments:
+        numbits: a binary blob, the packed number set.
+
+    Returns:
+        A list of ints.
+
+    When registered as a SQLite function by :func:`register_sqlite_functions`,
+    this returns a string, a JSON-encoded list of ints.
+
+    """
+    nums = []
+    for byte_i, byte in enumerate(numbits):
+        for bit_i in range(8):
+            if byte & (1 << bit_i):
+                nums.append(byte_i * 8 + bit_i)
+    return nums
+
+
+def numbits_union(numbits1: bytes, numbits2: bytes) -> bytes:
+    """Compute the union of two numbits.
+
+    Returns:
+        A new numbits, the union of `numbits1` and `numbits2`.
+    """
+    byte_pairs = zip_longest(numbits1, numbits2, fillvalue=0)
+    return bytes(b1 | b2 for b1, b2 in byte_pairs)
+
+
+def numbits_intersection(numbits1: bytes, numbits2: bytes) -> bytes:
+    """Compute the intersection of two numbits.
+
+    Returns:
+        A new numbits, the intersection `numbits1` and `numbits2`.
+    """
+    byte_pairs = zip_longest(numbits1, numbits2, fillvalue=0)
+    intersection_bytes = bytes(b1 & b2 for b1, b2 in byte_pairs)
+    return intersection_bytes.rstrip(b"\0")
+
+
+def numbits_any_intersection(numbits1: bytes, numbits2: bytes) -> bool:
+    """Is there any number that appears in both numbits?
+
+    Determine whether two number sets have a non-empty intersection. This is
+    faster than computing the intersection.
+
+    Returns:
+        A bool, True if there is any number in both `numbits1` and `numbits2`.
+    """
+    byte_pairs = zip_longest(numbits1, numbits2, fillvalue=0)
+    return any(b1 & b2 for b1, b2 in byte_pairs)
+
+
+def num_in_numbits(num: int, numbits: bytes) -> bool:
+    """Does the integer `num` appear in `numbits`?
+
+    Returns:
+        A bool, True if `num` is a member of `numbits`.
+    """
+    nbyte, nbit = divmod(num, 8)
+    if nbyte >= len(numbits):
+        return False
+    return bool(numbits[nbyte] & (1 << nbit))
+
+
+def register_sqlite_functions(connection: sqlite3.Connection) -> None:
+    """
+    Define numbits functions in a SQLite connection.
+
+    This defines these functions for use in SQLite statements:
+
+    * :func:`numbits_union`
+    * :func:`numbits_intersection`
+    * :func:`numbits_any_intersection`
+    * :func:`num_in_numbits`
+    * :func:`numbits_to_nums`
+
+    `connection` is a :class:`sqlite3.Connection <python:sqlite3.Connection>`
+    object.  After creating the connection, pass it to this function to
+    register the numbits functions.  Then you can use numbits functions in your
+    queries::
+
+        import sqlite3
+        from coverage.numbits import register_sqlite_functions
+
+        conn = sqlite3.connect("example.db")
+        register_sqlite_functions(conn)
+        c = conn.cursor()
+        # Kind of a nonsense query:
+        # Find all the files and contexts that executed line 47 in any file:
+        c.execute(
+            "select file_id, context_id from line_bits where num_in_numbits(?, numbits)",
+            (47,)
+        )
+    """
+    connection.create_function("numbits_union", 2, numbits_union)
+    connection.create_function("numbits_intersection", 2, numbits_intersection)
+    connection.create_function("numbits_any_intersection", 2, numbits_any_intersection)
+    connection.create_function("num_in_numbits", 2, num_in_numbits)
+    connection.create_function("numbits_to_nums", 1, lambda b: json.dumps(numbits_to_nums(b)))

calculator/lib/python3.12/site-packages/coverage/patch.py

@@ -0,0 +1,118 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Invasive patches for coverage.py."""
+
+from __future__ import annotations
+
+import contextlib
+import os
+from typing import TYPE_CHECKING, Any, NoReturn
+
+from coverage import env
+from coverage.debug import DevNullDebug
+from coverage.exceptions import ConfigError, CoverageException
+
+if TYPE_CHECKING:
+    from coverage import Coverage
+    from coverage.config import CoverageConfig
+    from coverage.types import TDebugCtl
+
+
+def apply_patches(
+    cov: Coverage,
+    config: CoverageConfig,
+    debug: TDebugCtl,
+) -> None:
+    """Apply invasive patches requested by `[run] patch=`."""
+    debug = debug if debug.should("patch") else DevNullDebug()
+    for patch in sorted(set(config.patch)):
+        match patch:
+            case "_exit":
+                _patch__exit(cov, debug)
+
+            case "execv":
+                _patch_execv(cov, config, debug)
+
+            case "fork":
+                _patch_fork(debug)
+
+            case "subprocess":
+                _patch_subprocess(config, debug)
+
+            case _:
+                raise ConfigError(f"Unknown patch {patch!r}")
+
+
+def _patch__exit(cov: Coverage, debug: TDebugCtl) -> None:
+    """Patch os._exit."""
+    debug.write("Patching _exit")
+
+    old_exit = os._exit
+
+    def coverage_os_exit_patch(status: int) -> NoReturn:
+        with contextlib.suppress(Exception):
+            debug.write(f"Using _exit patch with {cov = }")
+        with contextlib.suppress(Exception):
+            cov.save()
+        old_exit(status)
+
+    os._exit = coverage_os_exit_patch
+
+
+def _patch_execv(cov: Coverage, config: CoverageConfig, debug: TDebugCtl) -> None:
+    """Patch the execv family of functions."""
+    if env.WINDOWS:
+        raise CoverageException("patch=execv isn't supported yet on Windows.")
+
+    debug.write("Patching execv")
+
+    def make_execv_patch(fname: str, old_execv: Any) -> Any:
+        def coverage_execv_patch(*args: Any, **kwargs: Any) -> Any:
+            with contextlib.suppress(Exception):
+                debug.write(f"Using execv patch for {fname} with {cov = }")
+            with contextlib.suppress(Exception):
+                cov.save()
+
+            if fname.endswith("e"):
+                # Assume the `env` argument is passed positionally.
+                new_env = args[-1]
+                # Pass our configuration in the new environment.
+                new_env["COVERAGE_PROCESS_CONFIG"] = config.serialize()
+                if env.TESTING:
+                    # The subprocesses need to use the same core as the main process.
+                    new_env["COVERAGE_CORE"] = os.getenv("COVERAGE_CORE")
+
+                    # When testing locally, we need to honor the pyc file location
+                    # or they get written to the .tox directories and pollute the
+                    # next run with a different core.
+                    if (cache_prefix := os.getenv("PYTHONPYCACHEPREFIX")) is not None:
+                        new_env["PYTHONPYCACHEPREFIX"] = cache_prefix
+
+                    # Without this, it fails on PyPy and Ubuntu.
+                    new_env["PATH"] = os.getenv("PATH")
+            old_execv(*args, **kwargs)
+
+        return coverage_execv_patch
+
+    # All the exec* and spawn* functions eventually call execv or execve.
+    os.execv = make_execv_patch("execv", os.execv)
+    os.execve = make_execv_patch("execve", os.execve)
+
+
+def _patch_fork(debug: TDebugCtl) -> None:
+    """Ensure Coverage is properly reset after a fork."""
+    from coverage.control import _after_fork_in_child
+
+    if env.WINDOWS:
+        raise CoverageException("patch=fork isn't supported yet on Windows.")
+
+    debug.write("Patching fork")
+    os.register_at_fork(after_in_child=_after_fork_in_child)
+
+
+def _patch_subprocess(config: CoverageConfig, debug: TDebugCtl) -> None:
+    """Write .pth files and set environment vars to measure subprocesses."""
+    debug.write("Patching subprocess")
+    assert config.config_file is not None
+    os.environ["COVERAGE_PROCESS_CONFIG"] = config.serialize()

calculator/lib/python3.12/site-packages/coverage/phystokens.py

@@ -0,0 +1,202 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Better tokenizing for coverage.py."""
+
+from __future__ import annotations
+
+import ast
+import io
+import keyword
+import re
+import sys
+import token
+import tokenize
+from collections.abc import Iterable
+
+from coverage import env
+from coverage.types import TLineNo, TSourceTokenLines
+
+TokenInfos = Iterable[tokenize.TokenInfo]
+
+
+def _phys_tokens(toks: TokenInfos) -> TokenInfos:
+    """Return all physical tokens, even line continuations.
+
+    tokenize.generate_tokens() doesn't return a token for the backslash that
+    continues lines.  This wrapper provides those tokens so that we can
+    re-create a faithful representation of the original source.
+
+    Returns the same values as generate_tokens()
+
+    """
+    last_line: str | None = None
+    last_lineno = -1
+    last_ttext: str = ""
+    for ttype, ttext, (slineno, scol), (elineno, ecol), ltext in toks:
+        if last_lineno != elineno:
+            if last_line and last_line.endswith("\\\n"):
+                # We are at the beginning of a new line, and the last line
+                # ended with a backslash.  We probably have to inject a
+                # backslash token into the stream. Unfortunately, there's more
+                # to figure out.  This code::
+                #
+                #   usage = """\
+                #   HEY THERE
+                #   """
+                #
+                # triggers this condition, but the token text is::
+                #
+                #   '"""\\\nHEY THERE\n"""'
+                #
+                # so we need to figure out if the backslash is already in the
+                # string token or not.
+                inject_backslash = True
+                if last_ttext.endswith("\\"):
+                    inject_backslash = False
+                elif ttype == token.STRING:
+                    if (  # pylint: disable=simplifiable-if-statement
+                        last_line.endswith("\\\n")
+                        and last_line.rstrip(" \\\n").endswith(last_ttext)
+                    ):
+                        # Deal with special cases like such code::
+                        #
+                        #   a = ["aaa",\ # there may be zero or more blanks between "," and "\".
+                        #        "bbb \
+                        #        ccc"]
+                        #
+                        inject_backslash = True
+                    else:
+                        # It's a multi-line string and the first line ends with
+                        # a backslash, so we don't need to inject another.
+                        inject_backslash = False
+                elif env.PYBEHAVIOR.fstring_syntax and ttype == token.FSTRING_MIDDLE:
+                    inject_backslash = False
+                if inject_backslash:
+                    # Figure out what column the backslash is in.
+                    ccol = len(last_line.split("\n")[-2]) - 1
+                    # Yield the token, with a fake token type.
+                    yield tokenize.TokenInfo(
+                        99999,
+                        "\\\n",
+                        (slineno, ccol),
+                        (slineno, ccol + 2),
+                        last_line,
+                    )
+            last_line = ltext
+        if ttype not in (tokenize.NEWLINE, tokenize.NL):
+            last_ttext = ttext
+        yield tokenize.TokenInfo(ttype, ttext, (slineno, scol), (elineno, ecol), ltext)
+        last_lineno = elineno
+
+
+def find_soft_key_lines(source: str) -> set[TLineNo]:
+    """Helper for finding lines with soft keywords, like match/case lines."""
+    soft_key_lines: set[TLineNo] = set()
+
+    for node in ast.walk(ast.parse(source)):
+        # PYVERSION: we use sys.version_info here so that mypy will be ok with
+        # us accessing attributes that appeared in those versions.
+        if isinstance(node, ast.Match):
+            soft_key_lines.add(node.lineno)
+            for case in node.cases:
+                soft_key_lines.add(case.pattern.lineno)
+        elif sys.version_info >= (3, 12) and isinstance(node, ast.TypeAlias):
+            soft_key_lines.add(node.lineno)
+        elif sys.version_info >= (3, 15) and isinstance(node, (ast.Import, ast.ImportFrom)):
+            if node.is_lazy:
+                soft_key_lines.add(node.lineno)
+
+    return soft_key_lines
+
+
+def source_token_lines(source: str) -> TSourceTokenLines:
+    """Generate a series of lines, one for each line in `source`.
+
+    Each line is a list of pairs, each pair is a token::
+
+        [('key', 'def'), ('ws', ' '), ('nam', 'hello'), ('op', '('), ... ]
+
+    Each pair has a token class, and the token text.
+
+    If you concatenate all the token texts, and then join them with newlines,
+    you should have your original `source` back, with two differences:
+    trailing white space is not preserved, and a final line with no newline
+    is indistinguishable from a final line with a newline.
+
+    """
+
+    ws_tokens = {token.INDENT, token.DEDENT, token.NEWLINE, tokenize.NL}
+    line: list[tuple[str, str]] = []
+    col = 0
+
+    source = source.expandtabs(8).replace("\r\n", "\n")
+    tokgen = generate_tokens(source)
+
+    soft_key_lines = find_soft_key_lines(source)
+
+    for ttype, ttext, (sline, scol), (_, ecol), _ in _phys_tokens(tokgen):
+        mark_start = True
+        for part in re.split("(\n)", ttext):
+            if part == "\n":
+                yield line
+                line = []
+                col = 0
+                mark_end = False
+            elif part == "":
+                mark_end = False
+            elif ttype in ws_tokens:
+                mark_end = False
+            else:
+                if env.PYBEHAVIOR.fstring_syntax and ttype == token.FSTRING_MIDDLE:
+                    part = part.replace("{", "{{").replace("}", "}}")
+                    ecol = scol + len(part)
+                if mark_start and scol > col:
+                    line.append(("ws", " " * (scol - col)))
+                    mark_start = False
+                tok_class = tokenize.tok_name.get(ttype, "xx").lower()[:3]
+                if ttype == token.NAME:
+                    if keyword.iskeyword(ttext):
+                        # Hard keywords are always keywords.
+                        tok_class = "key"
+                    elif keyword.issoftkeyword(ttext):
+                        # Soft keywords appear at the start of their line.
+                        if len(line) == 0:
+                            is_start_of_line = True
+                        elif (len(line) == 1) and line[0][0] == "ws":
+                            is_start_of_line = True
+                        else:
+                            is_start_of_line = False
+                        if is_start_of_line and sline in soft_key_lines:
+                            tok_class = "key"
+                line.append((tok_class, part))
+                mark_end = True
+            scol = 0
+        if mark_end:
+            col = ecol
+
+    if line:
+        yield line
+
+
+def generate_tokens(text: str) -> TokenInfos:
+    """A helper around `tokenize.generate_tokens`.
+
+    Originally this was used to cache the results, but it didn't seem to make
+    reporting go faster, and caused issues with using too much memory.
+
+    """
+    readline = io.StringIO(text).readline
+    return tokenize.generate_tokens(readline)
+
+
+def source_encoding(source: bytes) -> str:
+    """Determine the encoding for `source`, according to PEP 263.
+
+    `source` is a byte string: the text of the program.
+
+    Returns a string, the name of the encoding.
+
+    """
+    readline = iter(source.splitlines(True)).__next__
+    return tokenize.detect_encoding(readline)[0]

calculator/lib/python3.12/site-packages/coverage/plugin.py

@@ -0,0 +1,617 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""
+.. versionadded:: 4.0
+
+Plug-in interfaces for coverage.py.
+
+Coverage.py supports a few different kinds of plug-ins that change its
+behavior:
+
+* File tracers implement tracing of non-Python file types.
+
+* Configurers add custom configuration, using Python code to change the
+  configuration.
+
+* Dynamic context switchers decide when the dynamic context has changed, for
+  example, to record what test function produced the coverage.
+
+To write a coverage.py plug-in, create a module with a subclass of
+:class:`~coverage.CoveragePlugin`.  You will override methods in your class to
+participate in various aspects of coverage.py's processing.
+Different types of plug-ins have to override different methods.
+
+Any plug-in can optionally implement :meth:`~coverage.CoveragePlugin.sys_info`
+to provide debugging information about their operation.
+
+Your module must also contain a ``coverage_init`` function that registers an
+instance of your plug-in class::
+
+    import coverage
+
+    class MyPlugin(coverage.CoveragePlugin):
+        ...
+
+    def coverage_init(reg, options):
+        reg.add_file_tracer(MyPlugin())
+
+You use the `reg` parameter passed to your ``coverage_init`` function to
+register your plug-in object.  The registration method you call depends on
+what kind of plug-in it is.
+
+If your plug-in takes options, the `options` parameter is a dictionary of your
+plug-in's options from the coverage.py configuration file.  Use them however
+you want to configure your object before registering it.
+
+Coverage.py will store its own information on your plug-in object, using
+attributes whose names start with ``_coverage_``.  Don't be startled.
+
+.. warning::
+    Plug-ins are imported by coverage.py before it begins measuring code.
+    If you write a plugin in your own project, it might import your product
+    code before coverage.py can start measuring.  This can result in your
+    own code being reported as missing.
+
+    One solution is to put your plugins in your project tree, but not in
+    your importable Python package.
+
+
+.. _file_tracer_plugins:
+
+File Tracers
+============
+
+File tracers implement measurement support for non-Python files.  File tracers
+implement the :meth:`~coverage.CoveragePlugin.file_tracer` method to claim
+files and the :meth:`~coverage.CoveragePlugin.file_reporter` method to report
+on those files.
+
+In your ``coverage_init`` function, use the ``add_file_tracer`` method to
+register your file tracer.
+
+
+.. _configurer_plugins:
+
+Configurers
+===========
+
+.. versionadded:: 4.5
+
+Configurers modify the configuration of coverage.py during start-up.
+Configurers implement the :meth:`~coverage.CoveragePlugin.configure` method to
+change the configuration.
+
+In your ``coverage_init`` function, use the ``add_configurer`` method to
+register your configurer.
+
+
+.. _dynamic_context_plugins:
+
+Dynamic Context Switchers
+=========================
+
+.. versionadded:: 5.0
+
+Dynamic context switcher plugins implement the
+:meth:`~coverage.CoveragePlugin.dynamic_context` method to dynamically compute
+the context label for each measured frame.
+
+Computed context labels are useful when you want to group measured data without
+modifying the source code.
+
+For example, you could write a plugin that checks `frame.f_code` to inspect
+the currently executed method, and set the context label to a fully qualified
+method name if it's an instance method of `unittest.TestCase` and the method
+name starts with 'test'.  Such a plugin would provide basic coverage grouping
+by test and could be used with test runners that have no built-in coveragepy
+support.
+
+In your ``coverage_init`` function, use the ``add_dynamic_context`` method to
+register your dynamic context switcher.
+
+"""
+
+from __future__ import annotations
+
+import functools
+from collections.abc import Iterable
+from dataclasses import dataclass
+from types import FrameType
+from typing import Any
+
+from coverage import files
+from coverage.misc import _needs_to_implement
+from coverage.types import TArc, TConfigurable, TLineNo, TSourceTokenLines
+
+
+class CoveragePlugin:
+    """Base class for coverage.py plug-ins."""
+
+    _coverage_plugin_name: str
+    _coverage_enabled: bool
+
+    def file_tracer(self, filename: str) -> FileTracer | None:  # pylint: disable=unused-argument
+        """Get a :class:`FileTracer` object for a file.
+
+        Plug-in type: file tracer.
+
+        Every Python source file is offered to your plug-in to give it a chance
+        to take responsibility for tracing the file.  If your plug-in can
+        handle the file, it should return a :class:`FileTracer` object.
+        Otherwise return None.
+
+        There is no way to register your plug-in for particular files.
+        Instead, this method is invoked for all  files as they are executed,
+        and the plug-in decides whether it can trace the file or not.
+        Be prepared for `filename` to refer to all kinds of files that have
+        nothing to do with your plug-in.
+
+        The file name will be a Python file being executed.  There are two
+        broad categories of behavior for a plug-in, depending on the kind of
+        files your plug-in supports:
+
+        * Static file names: each of your original source files has been
+          converted into a distinct Python file.  Your plug-in is invoked with
+          the Python file name, and it maps it back to its original source
+          file.
+
+        * Dynamic file names: all of your source files are executed by the same
+          Python file.  In this case, your plug-in implements
+          :meth:`FileTracer.dynamic_source_filename` to provide the actual
+          source file for each execution frame.
+
+        `filename` is a string, the path to the file being considered.  This is
+        the absolute real path to the file.  If you are comparing to other
+        paths, be sure to take this into account.
+
+        Returns a :class:`FileTracer` object to use to trace `filename`, or
+        None if this plug-in cannot trace this file.
+
+        """
+        return None
+
+    def file_reporter(
+        self,
+        filename: str,  # pylint: disable=unused-argument
+    ) -> FileReporter | str:  # str should be Literal["python"]
+        """Get the :class:`FileReporter` class to use for a file.
+
+        Plug-in type: file tracer.
+
+        This will only be invoked if `filename` returns non-None from
+        :meth:`file_tracer`.  It's an error to return None from this method.
+
+        Returns a :class:`FileReporter` object to use to report on `filename`,
+        or the string `"python"` to have coverage.py treat the file as Python.
+
+        """
+        _needs_to_implement(self, "file_reporter")
+
+    def dynamic_context(
+        self,
+        frame: FrameType,  # pylint: disable=unused-argument
+    ) -> str | None:
+        """Get the dynamically computed context label for `frame`.
+
+        Plug-in type: dynamic context.
+
+        This method is invoked for each frame when outside of a dynamic
+        context, to see if a new dynamic context should be started.  If it
+        returns a string, a new context label is set for this and deeper
+        frames.  The dynamic context ends when this frame returns.
+
+        Returns a string to start a new dynamic context, or None if no new
+        context should be started.
+
+        """
+        return None
+
+    def find_executable_files(
+        self,
+        src_dir: str,  # pylint: disable=unused-argument
+    ) -> Iterable[str]:
+        """Yield all of the executable files in `src_dir`, recursively.
+
+        Plug-in type: file tracer.
+
+        Executability is a plug-in-specific property, but generally means files
+        which would have been considered for coverage analysis, had they been
+        included automatically.
+
+        Returns or yields a sequence of strings, the paths to files that could
+        have been executed, including files that had been executed.
+
+        """
+        return []
+
+    def configure(self, config: TConfigurable) -> None:
+        """Modify the configuration of coverage.py.
+
+        Plug-in type: configurer.
+
+        This method is called during coverage.py start-up, to give your plug-in
+        a chance to change the configuration.  The `config` parameter is an
+        object with :meth:`~coverage.Coverage.get_option` and
+        :meth:`~coverage.Coverage.set_option` methods.  Do not call any other
+        methods on the `config` object.
+
+        """
+        pass
+
+    def sys_info(self) -> Iterable[tuple[str, Any]]:
+        """Get a list of information useful for debugging.
+
+        Plug-in type: any.
+
+        This method will be invoked for ``--debug=sys``.  Your
+        plug-in can return any information it wants to be displayed.
+
+        Returns a list of pairs: `[(name, value), ...]`.
+
+        """
+        return []
+
+
+class CoveragePluginBase:
+    """Plugins produce specialized objects, which point back to the original plugin."""
+
+    _coverage_plugin: CoveragePlugin
+
+
+class FileTracer(CoveragePluginBase):
+    """Support needed for files during the execution phase.
+
+    File tracer plug-ins implement subclasses of FileTracer to return from
+    their :meth:`~CoveragePlugin.file_tracer` method.
+
+    You may construct this object from :meth:`CoveragePlugin.file_tracer` any
+    way you like.  A natural choice would be to pass the file name given to
+    `file_tracer`.
+
+    `FileTracer` objects should only be created in the
+    :meth:`CoveragePlugin.file_tracer` method.
+
+    See :ref:`howitworks` for details of the different coverage.py phases.
+
+    """
+
+    def source_filename(self) -> str:
+        """The source file name for this file.
+
+        This may be any file name you like.  A key responsibility of a plug-in
+        is to own the mapping from Python execution back to whatever source
+        file name was originally the source of the code.
+
+        See :meth:`CoveragePlugin.file_tracer` for details about static and
+        dynamic file names.
+
+        Returns the file name to credit with this execution.
+
+        """
+        _needs_to_implement(self, "source_filename")
+
+    def has_dynamic_source_filename(self) -> bool:
+        """Does this FileTracer have dynamic source file names?
+
+        FileTracers can provide dynamically determined file names by
+        implementing :meth:`dynamic_source_filename`.  Invoking that function
+        is expensive. To determine whether to invoke it, coverage.py uses the
+        result of this function to know if it needs to bother invoking
+        :meth:`dynamic_source_filename`.
+
+        See :meth:`CoveragePlugin.file_tracer` for details about static and
+        dynamic file names.
+
+        Returns True if :meth:`dynamic_source_filename` should be called to get
+        dynamic source file names.
+
+        """
+        return False
+
+    def dynamic_source_filename(
+        self,
+        filename: str,  # pylint: disable=unused-argument
+        frame: FrameType,  # pylint: disable=unused-argument
+    ) -> str | None:
+        """Get a dynamically computed source file name.
+
+        Some plug-ins need to compute the source file name dynamically for each
+        frame.
+
+        This function will not be invoked if
+        :meth:`has_dynamic_source_filename` returns False.
+
+        Returns the source file name for this frame, or None if this frame
+        shouldn't be measured.
+
+        """
+        return None
+
+    def line_number_range(self, frame: FrameType) -> tuple[TLineNo, TLineNo]:
+        """Get the range of source line numbers for a given a call frame.
+
+        The call frame is examined, and the source line number in the original
+        file is returned.  The return value is a pair of numbers, the starting
+        line number and the ending line number, both inclusive.  For example,
+        returning (5, 7) means that lines 5, 6, and 7 should be considered
+        executed.
+
+        This function might decide that the frame doesn't indicate any lines
+        from the source file were executed.  Return (-1, -1) in this case to
+        tell coverage.py that no lines should be recorded for this frame.
+
+        """
+        lineno = frame.f_lineno
+        return lineno, lineno
+
+
+@dataclass
+class CodeRegion:
+    """Data for a region of code found by :meth:`FileReporter.code_regions`."""
+
+    #: The kind of region, like `"function"` or `"class"`. Must be one of the
+    #: singular values returned by :meth:`FileReporter.code_region_kinds`.
+    kind: str
+
+    #: The name of the region. For example, a function or class name.
+    name: str
+
+    #: The line in the source file to link to when navigating to the region.
+    #: Can be a line not mentioned in `lines`.
+    start: int
+
+    #: The lines in the region. Should be lines that could be executed in the
+    #: region.  For example, a class region includes all of the lines in the
+    #: methods of the class, but not the lines defining class attributes, since
+    #: they are executed on import, not as part of exercising the class.  The
+    #: set can include non-executable lines like blanks and comments.
+    lines: set[int]
+
+    def __lt__(self, other: CodeRegion) -> bool:
+        """To support sorting to make test-writing easier."""
+        if self.name == other.name:
+            return min(self.lines) < min(other.lines)
+        return self.name < other.name
+
+
+@functools.total_ordering
+class FileReporter(CoveragePluginBase):
+    """Support needed for files during the analysis and reporting phases.
+
+    File tracer plug-ins implement a subclass of `FileReporter`, and return
+    instances from their :meth:`CoveragePlugin.file_reporter` method.
+
+    There are many methods here, but only :meth:`lines` is required, to provide
+    the set of executable lines in the file.
+
+    See :ref:`howitworks` for details of the different coverage.py phases.
+
+    """
+
+    def __init__(self, filename: str) -> None:
+        """Simple initialization of a `FileReporter`.
+
+        The `filename` argument is the path to the file being reported.  This
+        will be available as the `.filename` attribute on the object.  Other
+        method implementations on this base class rely on this attribute.
+
+        """
+        self.filename = filename
+
+    def __repr__(self) -> str:
+        return f"<{self.__class__.__name__} filename={self.filename!r}>"
+
+    def relative_filename(self) -> str:
+        """Get the relative file name for this file.
+
+        This file path will be displayed in reports.  The default
+        implementation will supply the actual project-relative file path.  You
+        only need to supply this method if you have an unusual syntax for file
+        paths.
+
+        """
+        return files.relative_filename(self.filename)
+
+    def source(self) -> str:
+        """Get the source for the file.
+
+        Returns a Unicode string.
+
+        The base implementation simply reads the `self.filename` file and
+        decodes it as UTF-8.  Override this method if your file isn't readable
+        as a text file, or if you need other encoding support.
+
+        """
+        with open(self.filename, encoding="utf-8") as f:
+            return f.read()
+
+    def lines(self) -> set[TLineNo]:
+        """Get the executable lines in this file.
+
+        Your plug-in must determine which lines in the file were possibly
+        executable.  This method returns a set of those line numbers.
+
+        Returns a set of line numbers.
+
+        """
+        _needs_to_implement(self, "lines")
+
+    def excluded_lines(self) -> set[TLineNo]:
+        """Get the excluded executable lines in this file.
+
+        Your plug-in can use any method it likes to allow the user to exclude
+        executable lines from consideration.
+
+        Returns a set of line numbers.
+
+        The base implementation returns the empty set.
+
+        """
+        return set()
+
+    def translate_lines(self, lines: Iterable[TLineNo]) -> set[TLineNo]:
+        """Translate recorded lines into reported lines.
+
+        Some file formats will want to report lines slightly differently than
+        they are recorded.  For example, Python records the last line of a
+        multi-line statement, but reports are nicer if they mention the first
+        line.
+
+        Your plug-in can optionally define this method to perform these kinds
+        of adjustment.
+
+        `lines` is a sequence of integers, the recorded line numbers.
+
+        Returns a set of integers, the adjusted line numbers.
+
+        The base implementation returns the numbers unchanged.
+
+        """
+        return set(lines)
+
+    def arcs(self) -> set[TArc]:
+        """Get the executable arcs in this file.
+
+        To support branch coverage, your plug-in needs to be able to indicate
+        possible execution paths, as a set of line number pairs.  Each pair is
+        a `(prev, next)` pair indicating that execution can transition from the
+        `prev` line number to the `next` line number.
+
+        Returns a set of pairs of line numbers.  The default implementation
+        returns an empty set.
+
+        """
+        return set()
+
+    def no_branch_lines(self) -> set[TLineNo]:
+        """Get the lines excused from branch coverage in this file.
+
+        Your plug-in can use any method it likes to allow the user to exclude
+        lines from consideration of branch coverage.
+
+        Returns a set of line numbers.
+
+        The base implementation returns the empty set.
+
+        """
+        return set()
+
+    def translate_arcs(self, arcs: Iterable[TArc]) -> set[TArc]:
+        """Translate recorded arcs into reported arcs.
+
+        Similar to :meth:`translate_lines`, but for arcs.  `arcs` is a set of
+        line number pairs.
+
+        Returns a set of line number pairs.
+
+        The default implementation returns `arcs` unchanged.
+
+        """
+        return set(arcs)
+
+    def exit_counts(self) -> dict[TLineNo, int]:
+        """Get a count of exits from each line.
+
+        To determine which lines are branches, coverage.py looks for lines that
+        have more than one exit.  This function creates a dict mapping each
+        executable line number to a count of how many exits it has.
+
+        To be honest, this feels wrong, and should be refactored.  Let me know
+        if you attempt to implement this method in your plug-in...
+
+        """
+        return {}
+
+    def missing_arc_description(
+        self,
+        start: TLineNo,
+        end: TLineNo,
+        executed_arcs: Iterable[TArc] | None = None,  # pylint: disable=unused-argument
+    ) -> str:
+        """Provide an English sentence describing a missing arc.
+
+        The `start` and `end` arguments are the line numbers of the missing
+        arc. Negative numbers indicate entering or exiting code objects.
+
+        The `executed_arcs` argument is a set of line number pairs, the arcs
+        that were executed in this file.
+
+        By default, this simply returns the string "Line {start} didn't jump
+        to {end}".
+
+        """
+        return f"Line {start} didn't jump to line {end}"
+
+    def arc_description(
+        self,
+        start: TLineNo,  # pylint: disable=unused-argument
+        end: TLineNo,
+    ) -> str:
+        """Provide an English description of an arc's effect."""
+        return f"jump to line {end}"
+
+    def source_token_lines(self) -> TSourceTokenLines:
+        """Generate a series of tokenized lines, one for each line in `source`.
+
+        These tokens are used for syntax-colored reports.
+
+        Each line is a list of pairs, each pair is a token::
+
+            [("key", "def"), ("ws", " "), ("nam", "hello"), ("op", "("), ... ]
+
+        Each pair has a token class, and the token text.  The token classes
+        are:
+
+        * ``"com"``: a comment
+        * ``"key"``: a keyword
+        * ``"nam"``: a name, or identifier
+        * ``"num"``: a number
+        * ``"op"``: an operator
+        * ``"str"``: a string literal
+        * ``"ws"``: some white space
+        * ``"txt"``: some other kind of text
+
+        If you concatenate all the token texts, and then join them with
+        newlines, you should have your original source back.
+
+        The default implementation simply returns each line tagged as
+        ``"txt"``.
+
+        """
+        for line in self.source().splitlines():
+            yield [("txt", line)]
+
+    def code_regions(self) -> Iterable[CodeRegion]:
+        """Identify regions in the source file for finer reporting than by file.
+
+        Returns an iterable of :class:`CodeRegion` objects.  The kinds reported
+        should be in the possibilities returned by :meth:`code_region_kinds`.
+
+        """
+        return []
+
+    def code_region_kinds(self) -> Iterable[tuple[str, str]]:
+        """Return the kinds of code regions this plugin can find.
+
+        The returned pairs are the singular and plural forms of the kinds::
+
+            [
+                ("function", "functions"),
+                ("class", "classes"),
+            ]
+
+        This will usually be hard-coded, but could also differ by the specific
+        source file involved.
+
+        """
+        return []
+
+    def __eq__(self, other: Any) -> bool:
+        return isinstance(other, FileReporter) and self.filename == other.filename
+
+    def __lt__(self, other: Any) -> bool:
+        return isinstance(other, FileReporter) and self.filename < other.filename
+
+    # This object doesn't need to be hashed.
+    __hash__ = None  # type: ignore[assignment]

calculator/lib/python3.12/site-packages/coverage/plugin_support.py

@@ -0,0 +1,299 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Support for plugins."""
+
+from __future__ import annotations
+
+import os
+import os.path
+import sys
+from collections.abc import Callable, Iterable, Iterator
+from types import FrameType
+from typing import Any
+
+from coverage.exceptions import PluginError
+from coverage.misc import isolate_module
+from coverage.plugin import CoveragePlugin, FileReporter, FileTracer
+from coverage.types import TArc, TConfigurable, TDebugCtl, TLineNo, TPluginConfig, TSourceTokenLines
+
+os = isolate_module(os)
+
+
+class Plugins:
+    """The currently loaded collection of coverage.py plugins."""
+
+    def __init__(self, debug: TDebugCtl | None = None) -> None:
+        self.order: list[CoveragePlugin] = []
+        self.names: dict[str, CoveragePlugin] = {}
+        self.file_tracers: list[CoveragePlugin] = []
+        self.configurers: list[CoveragePlugin] = []
+        self.context_switchers: list[CoveragePlugin] = []
+
+        self.current_module: str | None = None
+        self.debug = debug
+
+    def load_from_config(
+        self,
+        modules: Iterable[str],
+        config: TPluginConfig,
+    ) -> None:
+        """Load plugin modules, and read their settings from configuration."""
+
+        for module in modules:
+            self.current_module = module
+            __import__(module)
+            mod = sys.modules[module]
+
+            coverage_init = getattr(mod, "coverage_init", None)
+            if not coverage_init:
+                raise PluginError(
+                    f"Plugin module {module!r} didn't define a coverage_init function",
+                )
+
+            options = config.get_plugin_options(module)
+            coverage_init(self, options)
+
+        self.current_module = None
+
+    def load_from_callables(
+        self,
+        plugin_inits: Iterable[TCoverageInit],
+    ) -> None:
+        """Load plugins from callables provided."""
+        for fn in plugin_inits:
+            fn(self)
+
+    def add_file_tracer(self, plugin: CoveragePlugin) -> None:
+        """Add a file tracer plugin.
+
+        `plugin` is an instance of a third-party plugin class.  It must
+        implement the :meth:`CoveragePlugin.file_tracer` method.
+
+        """
+        self._add_plugin(plugin, self.file_tracers)
+
+    def add_configurer(self, plugin: CoveragePlugin) -> None:
+        """Add a configuring plugin.
+
+        `plugin` is an instance of a third-party plugin class. It must
+        implement the :meth:`CoveragePlugin.configure` method.
+
+        """
+        self._add_plugin(plugin, self.configurers)
+
+    def add_dynamic_context(self, plugin: CoveragePlugin) -> None:
+        """Add a dynamic context plugin.
+
+        `plugin` is an instance of a third-party plugin class.  It must
+        implement the :meth:`CoveragePlugin.dynamic_context` method.
+
+        """
+        self._add_plugin(plugin, self.context_switchers)
+
+    def add_noop(self, plugin: CoveragePlugin) -> None:
+        """Add a plugin that does nothing.
+
+        This is only useful for testing the plugin support.
+
+        """
+        self._add_plugin(plugin, None)
+
+    def _add_plugin(
+        self,
+        plugin: CoveragePlugin,
+        specialized: list[CoveragePlugin] | None,
+    ) -> None:
+        """Add a plugin object.
+
+        `plugin` is a :class:`CoveragePlugin` instance to add.  `specialized`
+        is a list to append the plugin to.
+
+        """
+        plugin_name = f"{self.current_module}.{plugin.__class__.__name__}"
+        if self.debug and self.debug.should("plugin"):
+            self.debug.write(f"Loaded plugin {self.current_module!r}: {plugin!r}")
+            labelled = LabelledDebug(f"plugin {self.current_module!r}", self.debug)
+            plugin = DebugPluginWrapper(plugin, labelled)
+
+        plugin._coverage_plugin_name = plugin_name
+        plugin._coverage_enabled = True
+        self.order.append(plugin)
+        self.names[plugin_name] = plugin
+        if specialized is not None:
+            specialized.append(plugin)
+
+    def __bool__(self) -> bool:
+        return bool(self.order)
+
+    def __iter__(self) -> Iterator[CoveragePlugin]:
+        return iter(self.order)
+
+    def get(self, plugin_name: str) -> CoveragePlugin:
+        """Return a plugin by name."""
+        return self.names[plugin_name]
+
+
+TCoverageInit = Callable[[Plugins], None]
+
+
+class LabelledDebug:
+    """A Debug writer, but with labels for prepending to the messages."""
+
+    def __init__(self, label: str, debug: TDebugCtl, prev_labels: Iterable[str] = ()):
+        self.labels = list(prev_labels) + [label]
+        self.debug = debug
+
+    def add_label(self, label: str) -> LabelledDebug:
+        """Add a label to the writer, and return a new `LabelledDebug`."""
+        return LabelledDebug(label, self.debug, self.labels)
+
+    def message_prefix(self) -> str:
+        """The prefix to use on messages, combining the labels."""
+        prefixes = self.labels + [""]
+        return ":\n".join("  " * i + label for i, label in enumerate(prefixes))
+
+    def write(self, message: str) -> None:
+        """Write `message`, but with the labels prepended."""
+        self.debug.write(f"{self.message_prefix()}{message}")
+
+
+class DebugPluginWrapper(CoveragePlugin):
+    """Wrap a plugin, and use debug to report on what it's doing."""
+
+    def __init__(self, plugin: CoveragePlugin, debug: LabelledDebug) -> None:
+        super().__init__()
+        self.plugin = plugin
+        self.debug = debug
+
+    def file_tracer(self, filename: str) -> FileTracer | None:
+        tracer = self.plugin.file_tracer(filename)
+        self.debug.write(f"file_tracer({filename!r}) --> {tracer!r}")
+        if tracer:
+            debug = self.debug.add_label(f"file {filename!r}")
+            tracer = DebugFileTracerWrapper(tracer, debug)
+        return tracer
+
+    def file_reporter(self, filename: str) -> FileReporter | str:
+        reporter = self.plugin.file_reporter(filename)
+        assert isinstance(reporter, FileReporter)
+        self.debug.write(f"file_reporter({filename!r}) --> {reporter!r}")
+        if reporter:
+            debug = self.debug.add_label(f"file {filename!r}")
+            reporter = DebugFileReporterWrapper(filename, reporter, debug)
+        return reporter
+
+    def dynamic_context(self, frame: FrameType) -> str | None:
+        context = self.plugin.dynamic_context(frame)
+        self.debug.write(f"dynamic_context({frame!r}) --> {context!r}")
+        return context
+
+    def find_executable_files(self, src_dir: str) -> Iterable[str]:
+        executable_files = self.plugin.find_executable_files(src_dir)
+        self.debug.write(f"find_executable_files({src_dir!r}) --> {executable_files!r}")
+        return executable_files
+
+    def configure(self, config: TConfigurable) -> None:
+        self.debug.write(f"configure({config!r})")
+        self.plugin.configure(config)
+
+    def sys_info(self) -> Iterable[tuple[str, Any]]:
+        return self.plugin.sys_info()
+
+
+class DebugFileTracerWrapper(FileTracer):
+    """A debugging `FileTracer`."""
+
+    def __init__(self, tracer: FileTracer, debug: LabelledDebug) -> None:
+        self.tracer = tracer
+        self.debug = debug
+
+    def _show_frame(self, frame: FrameType) -> str:
+        """A short string identifying a frame, for debug messages."""
+        filename = os.path.basename(frame.f_code.co_filename)
+        return f"{filename}@{frame.f_lineno}"
+
+    def source_filename(self) -> str:
+        sfilename = self.tracer.source_filename()
+        self.debug.write(f"source_filename() --> {sfilename!r}")
+        return sfilename
+
+    def has_dynamic_source_filename(self) -> bool:
+        has = self.tracer.has_dynamic_source_filename()
+        self.debug.write(f"has_dynamic_source_filename() --> {has!r}")
+        return has
+
+    def dynamic_source_filename(self, filename: str, frame: FrameType) -> str | None:
+        dyn = self.tracer.dynamic_source_filename(filename, frame)
+        self.debug.write(
+            "dynamic_source_filename({!r}, {}) --> {!r}".format(
+                filename,
+                self._show_frame(frame),
+                dyn,
+            )
+        )
+        return dyn
+
+    def line_number_range(self, frame: FrameType) -> tuple[TLineNo, TLineNo]:
+        pair = self.tracer.line_number_range(frame)
+        self.debug.write(f"line_number_range({self._show_frame(frame)}) --> {pair!r}")
+        return pair
+
+
+class DebugFileReporterWrapper(FileReporter):
+    """A debugging `FileReporter`."""
+
+    def __init__(self, filename: str, reporter: FileReporter, debug: LabelledDebug) -> None:
+        super().__init__(filename)
+        self.reporter = reporter
+        self.debug = debug
+
+    def relative_filename(self) -> str:
+        ret = self.reporter.relative_filename()
+        self.debug.write(f"relative_filename() --> {ret!r}")
+        return ret
+
+    def lines(self) -> set[TLineNo]:
+        ret = self.reporter.lines()
+        self.debug.write(f"lines() --> {ret!r}")
+        return ret
+
+    def excluded_lines(self) -> set[TLineNo]:
+        ret = self.reporter.excluded_lines()
+        self.debug.write(f"excluded_lines() --> {ret!r}")
+        return ret
+
+    def translate_lines(self, lines: Iterable[TLineNo]) -> set[TLineNo]:
+        ret = self.reporter.translate_lines(lines)
+        self.debug.write(f"translate_lines({lines!r}) --> {ret!r}")
+        return ret
+
+    def translate_arcs(self, arcs: Iterable[TArc]) -> set[TArc]:
+        ret = self.reporter.translate_arcs(arcs)
+        self.debug.write(f"translate_arcs({arcs!r}) --> {ret!r}")
+        return ret
+
+    def no_branch_lines(self) -> set[TLineNo]:
+        ret = self.reporter.no_branch_lines()
+        self.debug.write(f"no_branch_lines() --> {ret!r}")
+        return ret
+
+    def exit_counts(self) -> dict[TLineNo, int]:
+        ret = self.reporter.exit_counts()
+        self.debug.write(f"exit_counts() --> {ret!r}")
+        return ret
+
+    def arcs(self) -> set[TArc]:
+        ret = self.reporter.arcs()
+        self.debug.write(f"arcs() --> {ret!r}")
+        return ret
+
+    def source(self) -> str:
+        ret = self.reporter.source()
+        self.debug.write(f"source() --> {len(ret)} chars")
+        return ret
+
+    def source_token_lines(self) -> TSourceTokenLines:
+        ret = list(self.reporter.source_token_lines())
+        self.debug.write(f"source_token_lines() --> {len(ret)} tokens")
+        return ret

calculator/lib/python3.12/site-packages/coverage/pth_file.py

@@ -0,0 +1,16 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+# pylint: disable=missing-module-docstring
+# pragma: exclude file from coverage
+# This will become the .pth file for subprocesses.
+
+import os
+
+if os.getenv("COVERAGE_PROCESS_START") or os.getenv("COVERAGE_PROCESS_CONFIG"):
+    try:
+        import coverage
+    except:  # pylint: disable=bare-except
+        pass
+    else:
+        coverage.process_startup(slug="pth")

calculator/lib/python3.12/site-packages/coverage/py.typed

@@ -0,0 +1 @@
+# Marker file for PEP 561 to indicate that this package has type hints.

calculator/lib/python3.12/site-packages/coverage/python.py

@@ -0,0 +1,272 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Python source expertise for coverage.py"""
+
+from __future__ import annotations
+
+import os.path
+import types
+import zipimport
+from collections.abc import Iterable
+from typing import TYPE_CHECKING
+
+from coverage import env
+from coverage.exceptions import CoverageException, NoSource
+from coverage.files import canonical_filename, relative_filename, zip_location
+from coverage.misc import isolate_module, join_regex
+from coverage.parser import PythonParser
+from coverage.phystokens import source_encoding, source_token_lines
+from coverage.plugin import CodeRegion, FileReporter
+from coverage.regions import code_regions
+from coverage.types import TArc, TLineNo, TMorf, TSourceTokenLines
+
+if TYPE_CHECKING:
+    from coverage import Coverage
+
+# Protect ourselves against aggressive mocking.
+os = isolate_module(os)
+# Save the original `open` function so later mocks don't break us.
+open = open  # pylint: disable=redefined-builtin
+
+
+def read_python_source(filename: str) -> bytes:
+    """Read the Python source text from `filename`.
+
+    Returns bytes.
+
+    """
+    with open(filename, "rb") as f:
+        source = f.read()
+
+    return source.replace(b"\r\n", b"\n").replace(b"\r", b"\n")
+
+
+def get_python_source(filename: str) -> str:
+    """Return the source code, as unicode."""
+    base, ext = os.path.splitext(filename)
+    if ext == ".py" and env.WINDOWS:
+        exts = [".py", ".pyw"]
+    else:
+        exts = [ext]
+
+    source_bytes: bytes | None
+    for ext in exts:
+        try_filename = base + ext
+        if os.path.exists(try_filename):
+            # A regular text file: open it.
+            source_bytes = read_python_source(try_filename)
+            break
+
+        # Maybe it's in a zip file?
+        source_bytes = get_zip_bytes(try_filename)
+        if source_bytes is not None:
+            break
+    else:
+        # Couldn't find source.
+        raise NoSource(f"No source for code: '{filename}'.", slug="no-source")
+
+    # Replace \f because of http://bugs.python.org/issue19035
+    source_bytes = source_bytes.replace(b"\f", b" ")
+    source = source_bytes.decode(source_encoding(source_bytes), "replace")
+
+    # Python code should always end with a line with a newline.
+    if source and source[-1] != "\n":
+        source += "\n"
+
+    return source
+
+
+def get_zip_bytes(filename: str) -> bytes | None:
+    """Get data from `filename` if it is a zip file path.
+
+    Returns the bytestring data read from the zip file, or None if no zip file
+    could be found or `filename` isn't in it.  The data returned will be
+    an empty string if the file is empty.
+
+    """
+    zipfile_inner = zip_location(filename)
+    if zipfile_inner is not None:
+        zipfile, inner = zipfile_inner
+        try:
+            zi = zipimport.zipimporter(zipfile)
+        except zipimport.ZipImportError:
+            return None
+        try:
+            data = zi.get_data(inner)
+        except OSError:
+            return None
+        return data
+    return None
+
+
+def source_for_file(filename: str) -> str:
+    """Return the source filename for `filename`.
+
+    Given a file name being traced, return the best guess as to the source
+    file to attribute it to.
+
+    """
+    if filename.endswith(".py"):
+        # .py files are themselves source files.
+        return filename
+
+    elif filename.endswith((".pyc", ".pyo")):
+        # Bytecode files probably have source files near them.
+        py_filename = filename[:-1]
+        if os.path.exists(py_filename):
+            # Found a .py file, use that.
+            return py_filename
+        if env.WINDOWS:
+            # On Windows, it could be a .pyw file.
+            pyw_filename = py_filename + "w"
+            if os.path.exists(pyw_filename):
+                return pyw_filename
+        # Didn't find source, but it's probably the .py file we want.
+        return py_filename
+
+    # No idea, just use the file name as-is.
+    return filename
+
+
+def source_for_morf(morf: TMorf) -> str:
+    """Get the source filename for the module-or-file `morf`."""
+    if hasattr(morf, "__file__") and morf.__file__:
+        filename = morf.__file__
+    elif isinstance(morf, types.ModuleType):
+        # A module should have had .__file__, otherwise we can't use it.
+        # This could be a PEP-420 namespace package.
+        raise CoverageException(f"Module {morf} has no file")
+    else:
+        filename = morf
+
+    filename = source_for_file(filename)
+    return filename
+
+
+class PythonFileReporter(FileReporter):
+    """Report support for a Python file."""
+
+    def __init__(self, morf: TMorf, coverage: Coverage | None = None) -> None:
+        self.coverage = coverage
+
+        filename = source_for_morf(morf)
+
+        fname = filename
+        canonicalize = True
+        if self.coverage is not None:
+            if self.coverage.config.relative_files:
+                canonicalize = False
+        if canonicalize:
+            fname = canonical_filename(filename)
+        super().__init__(fname)
+
+        if hasattr(morf, "__name__"):
+            name = morf.__name__.replace(".", os.sep)
+            if os.path.basename(filename).startswith("__init__."):
+                name += os.sep + "__init__"
+            name += ".py"
+        else:
+            name = relative_filename(filename)
+        self.relname = name
+
+        self._source: str | None = None
+        self._parser: PythonParser | None = None
+        self._excluded = None
+
+    def __repr__(self) -> str:
+        return f"<PythonFileReporter {self.filename!r}>"
+
+    def relative_filename(self) -> str:
+        return self.relname
+
+    @property
+    def parser(self) -> PythonParser:
+        """Lazily create a :class:`PythonParser`."""
+        assert self.coverage is not None
+        if self._parser is None:
+            self._parser = PythonParser(
+                filename=self.filename,
+                exclude=self.coverage._exclude_regex("exclude"),
+            )
+            self._parser.parse_source()
+        return self._parser
+
+    def lines(self) -> set[TLineNo]:
+        """Return the line numbers of statements in the file."""
+        return self.parser.statements
+
+    def multiline_map(self) -> dict[TLineNo, TLineNo]:
+        """A map of line numbers to first-line in a multi-line statement."""
+        return self.parser.multiline_map
+
+    def excluded_lines(self) -> set[TLineNo]:
+        """Return the line numbers of excluded statements in the file."""
+        return self.parser.excluded
+
+    def translate_lines(self, lines: Iterable[TLineNo]) -> set[TLineNo]:
+        return self.parser.translate_lines(lines)
+
+    def translate_arcs(self, arcs: Iterable[TArc]) -> set[TArc]:
+        return self.parser.translate_arcs(arcs)
+
+    def no_branch_lines(self) -> set[TLineNo]:
+        assert self.coverage is not None
+        no_branch = self.parser.lines_matching(
+            join_regex(self.coverage.config.partial_list + self.coverage.config.partial_always_list)
+        )
+        return no_branch
+
+    def arcs(self) -> set[TArc]:
+        return self.parser.arcs()
+
+    def exit_counts(self) -> dict[TLineNo, int]:
+        return self.parser.exit_counts()
+
+    def missing_arc_description(
+        self,
+        start: TLineNo,
+        end: TLineNo,
+        executed_arcs: Iterable[TArc] | None = None,
+    ) -> str:
+        return self.parser.missing_arc_description(start, end)
+
+    def arc_description(self, start: TLineNo, end: TLineNo) -> str:
+        return self.parser.arc_description(start, end)
+
+    def source(self) -> str:
+        if self._source is None:
+            self._source = get_python_source(self.filename)
+        return self._source
+
+    def should_be_python(self) -> bool:
+        """Does it seem like this file should contain Python?
+
+        This is used to decide if a file reported as part of the execution of
+        a program was really likely to have contained Python in the first
+        place.
+
+        """
+        # Get the file extension.
+        _, ext = os.path.splitext(self.filename)
+
+        # Anything named *.py* should be Python.
+        if ext.startswith(".py"):
+            return True
+        # A file with no extension should be Python.
+        if not ext:
+            return True
+        # Everything else is probably not Python.
+        return False
+
+    def source_token_lines(self) -> TSourceTokenLines:
+        return source_token_lines(self.source())
+
+    def code_regions(self) -> Iterable[CodeRegion]:
+        return code_regions(self.source())
+
+    def code_region_kinds(self) -> Iterable[tuple[str, str]]:
+        return [
+            ("function", "functions"),
+            ("class", "classes"),
+        ]

calculator/lib/python3.12/site-packages/coverage/pytracer.py

@@ -0,0 +1,370 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Raw data collector for coverage.py."""
+
+from __future__ import annotations
+
+import atexit
+import dis
+import itertools
+import sys
+import threading
+from collections.abc import Callable
+from types import FrameType, ModuleType
+from typing import Any, cast
+
+from coverage import env
+from coverage.types import (
+    TArc,
+    TFileDisposition,
+    TLineNo,
+    Tracer,
+    TShouldStartContextFn,
+    TShouldTraceFn,
+    TTraceData,
+    TTraceFileData,
+    TTraceFn,
+    TWarnFn,
+)
+
+# I don't understand why, but if we use `cast(set[TLineNo], ...)` inside
+# the _trace() function, we get some strange behavior on PyPy 3.10.
+# Assigning these names here and using them below fixes the problem.
+# See https://github.com/coveragepy/coveragepy/issues/1902
+set_TLineNo = set[TLineNo]
+set_TArc = set[TArc]
+
+
+# We need the YIELD_VALUE opcode below, in a comparison-friendly form.
+# PYVERSIONS: RESUME is new in Python3.11
+RESUME = dis.opmap.get("RESUME")
+RETURN_VALUE = dis.opmap["RETURN_VALUE"]
+if RESUME is None:
+    YIELD_VALUE = dis.opmap["YIELD_VALUE"]
+    YIELD_FROM = dis.opmap["YIELD_FROM"]
+    YIELD_FROM_OFFSET = 0 if env.PYPY else 2
+else:
+    YIELD_VALUE = YIELD_FROM = YIELD_FROM_OFFSET = -1
+
+# When running meta-coverage, this file can try to trace itself, which confuses
+# everything.  Don't trace ourselves.
+
+THIS_FILE = __file__.rstrip("co")
+
+
+class PyTracer(Tracer):
+    """Python implementation of the raw data tracer."""
+
+    # Because of poor implementations of trace-function-manipulating tools,
+    # the Python trace function must be kept very simple.  In particular, there
+    # must be only one function ever set as the trace function, both through
+    # sys.settrace, and as the return value from the trace function.  Put
+    # another way, the trace function must always return itself.  It cannot
+    # swap in other functions, or return None to avoid tracing a particular
+    # frame.
+    #
+    # The trace manipulator that introduced this restriction is DecoratorTools,
+    # which sets a trace function, and then later restores the pre-existing one
+    # by calling sys.settrace with a function it found in the current frame.
+    #
+    # Systems that use DecoratorTools (or similar trace manipulations) must use
+    # PyTracer to get accurate results.  The command-line --timid argument is
+    # used to force the use of this tracer.
+
+    tracer_ids = itertools.count()
+
+    def __init__(self) -> None:
+        # Which tracer are we?
+        self.id = next(self.tracer_ids)
+
+        # Attributes set from the collector:
+        self.data: TTraceData
+        self.trace_arcs = False
+        self.should_trace: TShouldTraceFn
+        self.should_trace_cache: dict[str, TFileDisposition | None]
+        self.should_start_context: TShouldStartContextFn | None = None
+        self.switch_context: Callable[[str | None], None] | None = None
+        self.lock_data: Callable[[], None]
+        self.unlock_data: Callable[[], None]
+        self.warn: TWarnFn
+
+        # The threading module to use, if any.
+        self.threading: ModuleType | None = None
+
+        self.cur_file_data: TTraceFileData | None = None
+        self.last_line: TLineNo = 0
+        self.cur_file_name: str | None = None
+        self.context: str | None = None
+        self.started_context = False
+
+        # The data_stack parallels the Python call stack. Each entry is
+        # information about an active frame, a four-element tuple:
+        #   [0] The TTraceData for this frame's file. Could be None if we
+        #           aren't tracing this frame.
+        #   [1] The current file name for the frame. None if we aren't tracing
+        #           this frame.
+        #   [2] The last line number executed in this frame.
+        #   [3] Boolean: did this frame start a new context?
+        self.data_stack: list[tuple[TTraceFileData | None, str | None, TLineNo, bool]] = []
+        self.thread: threading.Thread | None = None
+        self.stopped = False
+        self._activity = False
+
+        self.in_atexit = False
+        # On exit, self.in_atexit = True
+        atexit.register(setattr, self, "in_atexit", True)
+
+        # Cache a bound method on the instance, so that we don't have to
+        # re-create a bound method object all the time.
+        self._cached_bound_method_trace: TTraceFn = self._trace
+
+    def __repr__(self) -> str:
+        points = sum(len(v) for v in self.data.values())
+        files = len(self.data)
+        return f"<PyTracer at {id(self):#x}: {points} data points in {files} files>"
+
+    def log(self, marker: str, *args: Any) -> None:
+        """For hard-core logging of what this tracer is doing."""
+        with open("/tmp/debug_trace.txt", "a", encoding="utf-8") as f:
+            f.write(f"{marker} {self.id}[{len(self.data_stack)}]")
+            if 0:  # if you want thread ids..
+                f.write(  # type: ignore[unreachable]
+                    ".{:x}.{:x}".format(
+                        self.thread.ident,
+                        self.threading.current_thread().ident,
+                    )
+                )
+            f.write(" {}".format(" ".join(map(str, args))))
+            if 0:  # if you want callers..
+                f.write(" | ")  # type: ignore[unreachable]
+                stack = " / ".join(
+                    (fname or "???").rpartition("/")[-1] for _, fname, _, _ in self.data_stack
+                )
+                f.write(stack)
+            f.write("\n")
+
+    def _trace(
+        self,
+        frame: FrameType,
+        event: str,
+        arg: Any,  # pylint: disable=unused-argument
+        lineno: TLineNo | None = None,  # pylint: disable=unused-argument
+    ) -> TTraceFn | None:
+        """The trace function passed to sys.settrace."""
+
+        if THIS_FILE in frame.f_code.co_filename:
+            return None
+
+        # f = frame; code = f.f_code
+        # self.log(":", f"{code.co_filename} {f.f_lineno} {code.co_name}()", event)
+
+        if self.stopped and sys.gettrace() == self._cached_bound_method_trace:  # pylint: disable=comparison-with-callable
+            # The PyTrace.stop() method has been called, possibly by another
+            # thread, let's deactivate ourselves now.
+            if 0:
+                f = frame  # type: ignore[unreachable]
+                self.log("---\nX", f.f_code.co_filename, f.f_lineno)
+                while f:
+                    self.log(">", f.f_code.co_filename, f.f_lineno, f.f_code.co_name, f.f_trace)
+                    f = f.f_back
+            sys.settrace(None)
+            try:
+                self.cur_file_data, self.cur_file_name, self.last_line, self.started_context = (
+                    self.data_stack.pop()
+                )
+            except IndexError:
+                self.log(
+                    "Empty stack!",
+                    frame.f_code.co_filename,
+                    frame.f_lineno,
+                    frame.f_code.co_name,
+                )
+            return None
+
+        # if event != "call" and frame.f_code.co_filename != self.cur_file_name:
+        #     self.log("---\n*", frame.f_code.co_filename, self.cur_file_name, frame.f_lineno)
+
+        if event == "call":
+            # Should we start a new context?
+            if self.should_start_context and self.context is None:
+                context_maybe = self.should_start_context(frame)  # pylint: disable=not-callable
+                if context_maybe is not None:
+                    self.context = context_maybe
+                    started_context = True
+                    assert self.switch_context is not None
+                    self.switch_context(self.context)  # pylint: disable=not-callable
+                else:
+                    started_context = False
+            else:
+                started_context = False
+            self.started_context = started_context
+
+            # Entering a new frame.  Decide if we should trace in this file.
+            self._activity = True
+            self.data_stack.append(
+                (
+                    self.cur_file_data,
+                    self.cur_file_name,
+                    self.last_line,
+                    started_context,
+                ),
+            )
+
+            # Improve tracing performance: when calling a function, both caller
+            # and callee are often within the same file. if that's the case, we
+            # don't have to re-check whether to trace the corresponding
+            # function (which is a little bit expensive since it involves
+            # dictionary lookups). This optimization is only correct if we
+            # didn't start a context.
+            filename = frame.f_code.co_filename
+            if filename != self.cur_file_name or started_context:
+                self.cur_file_name = filename
+                disp = self.should_trace_cache.get(filename)
+                if disp is None:
+                    disp = self.should_trace(filename, frame)
+                    self.should_trace_cache[filename] = disp
+
+                self.cur_file_data = None
+                if disp.trace:
+                    tracename = disp.source_filename
+                    assert tracename is not None
+                    self.lock_data()
+                    try:
+                        if tracename not in self.data:
+                            self.data[tracename] = set()
+                    finally:
+                        self.unlock_data()
+                    self.cur_file_data = self.data[tracename]
+                else:
+                    frame.f_trace_lines = False
+            elif not self.cur_file_data:
+                frame.f_trace_lines = False
+
+            # The call event is really a "start frame" event, and happens for
+            # function calls and re-entering generators.  The f_lasti field is
+            # -1 for calls, and a real offset for generators.  Use <0 as the
+            # line number for calls, and the real line number for generators.
+            if RESUME is not None:
+                # The current opcode is guaranteed to be RESUME. The argument
+                # determines what kind of resume it is.
+                oparg = frame.f_code.co_code[frame.f_lasti + 1]
+                real_call = (oparg == 0)  # fmt: skip
+            else:
+                real_call = (getattr(frame, "f_lasti", -1) < 0)  # fmt: skip
+            if real_call:
+                self.last_line = -frame.f_code.co_firstlineno
+            else:
+                self.last_line = frame.f_lineno
+
+        elif event == "line":
+            # Record an executed line.
+            if self.cur_file_data is not None:
+                flineno: TLineNo = frame.f_lineno
+
+                if self.trace_arcs:
+                    cast(set_TArc, self.cur_file_data).add((self.last_line, flineno))
+                else:
+                    cast(set_TLineNo, self.cur_file_data).add(flineno)
+                self.last_line = flineno
+
+        elif event == "return":
+            if self.trace_arcs and self.cur_file_data:
+                # Record an arc leaving the function, but beware that a
+                # "return" event might just mean yielding from a generator.
+                code = frame.f_code.co_code
+                lasti = frame.f_lasti
+                if RESUME is not None:
+                    if len(code) == lasti + 2:
+                        # A return from the end of a code object is a real return.
+                        real_return = True
+                    else:
+                        # It is a real return if we aren't going to resume next.
+                        if env.PYBEHAVIOR.lasti_is_yield:
+                            lasti += 2
+                        real_return = code[lasti] != RESUME
+                else:
+                    if code[lasti] == RETURN_VALUE:
+                        real_return = True
+                    elif code[lasti] == YIELD_VALUE:
+                        real_return = False
+                    elif len(code) <= lasti + YIELD_FROM_OFFSET:
+                        real_return = True
+                    elif code[lasti + YIELD_FROM_OFFSET] == YIELD_FROM:
+                        real_return = False
+                    else:
+                        real_return = True
+                if real_return:
+                    first = frame.f_code.co_firstlineno
+                    cast(set_TArc, self.cur_file_data).add((self.last_line, -first))
+
+            # Leaving this function, pop the filename stack.
+            self.cur_file_data, self.cur_file_name, self.last_line, self.started_context = (
+                self.data_stack.pop()
+            )
+            # Leaving a context?
+            if self.started_context:
+                assert self.switch_context is not None
+                self.context = None
+                self.switch_context(None)  # pylint: disable=not-callable
+
+        return self._cached_bound_method_trace
+
+    def start(self) -> TTraceFn:
+        """Start this Tracer.
+
+        Return a Python function suitable for use with sys.settrace().
+
+        """
+        self.stopped = False
+        if self.threading:
+            if self.thread is None:
+                self.thread = self.threading.current_thread()
+
+        sys.settrace(self._cached_bound_method_trace)
+        return self._cached_bound_method_trace
+
+    def stop(self) -> None:
+        """Stop this Tracer."""
+        # Get the active tracer callback before setting the stop flag to be
+        # able to detect if the tracer was changed prior to stopping it.
+        tf = sys.gettrace()
+
+        # Set the stop flag. The actual call to sys.settrace(None) will happen
+        # in the self._trace callback itself to make sure to call it from the
+        # right thread.
+        self.stopped = True
+
+        if self.threading:
+            assert self.thread is not None
+            if self.thread.ident != self.threading.current_thread().ident:
+                # Called on a different thread than started us: we can't unhook
+                # ourselves, but we've set the flag that we should stop, so we
+                # won't do any more tracing.
+                # self.log("~", "stopping on different threads")
+                return
+
+        # PyPy clears the trace function before running atexit functions,
+        # so don't warn if we are in atexit on PyPy and the trace function
+        # has changed to None.  Metacoverage also messes this up, so don't
+        # warn if we are measuring ourselves.
+        suppress_warning = (env.PYPY and self.in_atexit and tf is None) or env.METACOV
+        if self.warn and not suppress_warning:
+            if tf != self._cached_bound_method_trace:  # pylint: disable=comparison-with-callable
+                self.warn(
+                    "Trace function changed, data is likely wrong: "
+                    + f"{tf!r} != {self._cached_bound_method_trace!r}",
+                    slug="trace-changed",
+                )
+
+    def activity(self) -> bool:
+        """Has there been any activity?"""
+        return self._activity
+
+    def reset_activity(self) -> None:
+        """Reset the activity() flag."""
+        self._activity = False
+
+    def get_stats(self) -> dict[str, int] | None:
+        """Return a dictionary of statistics, or None."""
+        return None

calculator/lib/python3.12/site-packages/coverage/regions.py

@@ -0,0 +1,127 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Find functions and classes in Python code."""
+
+from __future__ import annotations
+
+import ast
+from typing import cast
+from dataclasses import dataclass
+
+from coverage.plugin import CodeRegion
+
+
+@dataclass
+class Context:
+    """The nested named context of a function or class."""
+
+    name: str
+    kind: str
+    lines: set[int]
+
+
+class RegionFinder:
+    """An ast visitor that will find and track regions of code.
+
+    Functions and classes are tracked by name. Results are in the .regions
+    attribute.
+
+    """
+
+    def __init__(self) -> None:
+        self.regions: list[CodeRegion] = []
+        self.context: list[Context] = []
+
+    def parse_source(self, source: str) -> None:
+        """Parse `source` and walk the ast to populate the .regions attribute."""
+        self.handle_node(ast.parse(source))
+
+    def fq_node_name(self) -> str:
+        """Get the current fully qualified name we're processing."""
+        return ".".join(c.name for c in self.context)
+
+    def handle_node(self, node: ast.AST) -> None:
+        """Recursively handle any node."""
+        if isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef)):
+            self.handle_FunctionDef(node)
+        elif isinstance(node, ast.ClassDef):
+            self.handle_ClassDef(node)
+        else:
+            self.handle_node_body(node)
+
+    def handle_node_body(self, node: ast.AST) -> None:
+        """Recursively handle the nodes in this node's body, if any."""
+        for body_node in getattr(node, "body", ()):
+            self.handle_node(body_node)
+
+    def handle_FunctionDef(self, node: ast.FunctionDef | ast.AsyncFunctionDef) -> None:
+        """Called for `def` or `async def`."""
+        lines = set(range(node.body[0].lineno, cast(int, node.body[-1].end_lineno) + 1))
+        if self.context and self.context[-1].kind == "class":
+            # Function bodies are part of their enclosing class.
+            self.context[-1].lines |= lines
+        # Function bodies should be excluded from the nearest enclosing function.
+        for ancestor in reversed(self.context):
+            if ancestor.kind == "function":
+                ancestor.lines -= lines
+                break
+        self.context.append(Context(node.name, "function", lines))
+        self.regions.append(
+            CodeRegion(
+                kind="function",
+                name=self.fq_node_name(),
+                start=node.lineno,
+                lines=lines,
+            )
+        )
+        self.handle_node_body(node)
+        self.context.pop()
+
+    def handle_ClassDef(self, node: ast.ClassDef) -> None:
+        """Called for `class`."""
+        # The lines for a class are the lines in the methods of the class.
+        # We start empty, and count on visit_FunctionDef to add the lines it
+        # finds.
+        lines: set[int] = set()
+        self.context.append(Context(node.name, "class", lines))
+        self.regions.append(
+            CodeRegion(
+                kind="class",
+                name=self.fq_node_name(),
+                start=node.lineno,
+                lines=lines,
+            )
+        )
+        self.handle_node_body(node)
+        self.context.pop()
+        # Class bodies should be excluded from the enclosing classes.
+        for ancestor in reversed(self.context):
+            if ancestor.kind == "class":
+                ancestor.lines -= lines
+
+
+def code_regions(source: str) -> list[CodeRegion]:
+    """Find function and class regions in source code.
+
+    Analyzes the code in `source`, and returns a list of :class:`CodeRegion`
+    objects describing functions and classes as regions of the code::
+
+        [
+            CodeRegion(kind="function", name="func1", start=8, lines={10, 11, 12}),
+            CodeRegion(kind="function", name="MyClass.method", start=30, lines={34, 35, 36}),
+            CodeRegion(kind="class", name="MyClass", start=25, lines={34, 35, 36}),
+        ]
+
+    The line numbers will include comments and blank lines.  Later processing
+    will need to ignore those lines as needed.
+
+    Nested functions and classes are excluded from their enclosing region.  No
+    line should be reported as being part of more than one function, or more
+    than one class.  Lines in methods are reported as being in a function and
+    in a class.
+
+    """
+    rf = RegionFinder()
+    rf.parse_source(source)
+    return rf.regions

calculator/lib/python3.12/site-packages/coverage/report.py

@@ -0,0 +1,307 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Summary reporting"""
+
+from __future__ import annotations
+
+import string
+import sys
+from collections.abc import Iterable
+from typing import IO, TYPE_CHECKING, Any
+
+from coverage.exceptions import ConfigError, NoDataError
+from coverage.misc import human_sorted_items, plural
+from coverage.plugin import FileReporter
+from coverage.report_core import get_analysis_to_report
+from coverage.results import Analysis, Numbers
+from coverage.types import TMorfs
+
+if TYPE_CHECKING:
+    from coverage import Coverage
+
+MARKDOWN_ESCAPES = str.maketrans(
+    {char: f"\\{char}" for char in string.punctuation if char not in ".,/-"}
+)
+
+
+def escape_markdown(text: str) -> str:
+    """Prefix all characters meaningful in markdown tables with backslashes."""
+    return text.translate(MARKDOWN_ESCAPES)
+
+
+class SummaryReporter:
+    """A reporter for writing the summary report."""
+
+    def __init__(self, coverage: Coverage) -> None:
+        self.coverage = coverage
+        self.config = self.coverage.config
+        self.branches = coverage.get_data().has_arcs()
+        self.outfile: IO[str] | None = None
+        self.output_format = self.config.format or "text"
+        if self.output_format not in {"text", "markdown", "total"}:
+            raise ConfigError(f"Unknown report format choice: {self.output_format!r}")
+        self.fr_analyses: list[tuple[FileReporter, Analysis]] = []
+        self.skipped_count = 0
+        self.empty_count = 0
+        self.total = Numbers(precision=self.config.precision)
+
+    def write(self, line: str) -> None:
+        """Write a line to the output, adding a newline."""
+        assert self.outfile is not None
+        self.outfile.write(line.rstrip())
+        self.outfile.write("\n")
+
+    def write_items(self, items: Iterable[str]) -> None:
+        """Write a list of strings, joined together."""
+        self.write("".join(items))
+
+    def report_text(
+        self,
+        header: list[str],
+        lines_values: list[list[Any]],
+        total_line: list[Any],
+        end_lines: list[str],
+    ) -> None:
+        """Internal method that prints report data in text format.
+
+        `header` is a list with captions.
+        `lines_values` is list of lists of sortable values.
+        `total_line` is a list with values of the total line.
+        `end_lines` is a list of ending lines with information about skipped files.
+
+        """
+        # Prepare the formatting strings, header, and column sorting.
+        max_name = max([len(line[0]) for line in lines_values] + [5]) + 1
+        max_n = max(len(total_line[header.index("Cover")]) + 2, len(" Cover")) + 1
+        max_n = max([max_n] + [len(line[header.index("Cover")]) + 2 for line in lines_values])
+        formats = dict(
+            Name="{:{name_len}}",
+            Stmts="{:>7}",
+            Miss="{:>7}",
+            Branch="{:>7}",
+            BrPart="{:>7}",
+            Cover="{:>{n}}",
+            Missing="{:>10}",
+        )
+        header_items = [formats[item].format(item, name_len=max_name, n=max_n) for item in header]
+        header_str = "".join(header_items)
+        rule = "-" * len(header_str)
+
+        # Write the header
+        self.write(header_str)
+        self.write(rule)
+
+        # Write the data lines
+        formats.update(
+            dict(
+                Cover="{:>{n}}%",
+                Missing="   {:9}",
+            )
+        )
+        for values in lines_values:
+            self.write_items(
+                (
+                    formats[item].format(str(value), name_len=max_name, n=max_n - 1)
+                    for item, value in zip(header, values)
+                )
+            )
+
+        # Write a TOTAL line
+        if lines_values:
+            self.write(rule)
+
+        self.write_items(
+            (
+                formats[item].format(str(value), name_len=max_name, n=max_n - 1)
+                for item, value in zip(header, total_line)
+            )
+        )
+
+        for end_line in end_lines:
+            self.write(end_line)
+
+    def report_markdown(
+        self,
+        header: list[str],
+        lines_values: list[list[Any]],
+        total_line: list[Any],
+        end_lines: list[str],
+    ) -> None:
+        """Internal method that prints report data in markdown format.
+
+        `header` is a list with captions.
+        `lines_values` is a sorted list of lists containing coverage information.
+        `total_line` is a list with values of the total line.
+        `end_lines` is a list of ending lines with information about skipped files.
+
+        """
+
+        # Prepare the formatting strings, header, and column sorting.
+        max_name = max((len(escape_markdown(line[0])) for line in lines_values), default=0)
+        max_name = max(max_name, len("**TOTAL**")) + 1
+        formats = dict(
+            Name="| {:{name_len}}|",
+            Stmts="{:>9} |",
+            Miss="{:>9} |",
+            Branch="{:>9} |",
+            BrPart="{:>9} |",
+            Cover="{:>{n}} |",
+            Missing="{:>10} |",
+        )
+        max_n = max(len(total_line[header.index("Cover")]) + 6, len(" Cover "))
+        header_items = [formats[item].format(item, name_len=max_name, n=max_n) for item in header]
+        header_str = "".join(header_items)
+        rule_str = "|" + " ".join(
+            ["- |".rjust(len(header_items[0]) - 1, "-")]
+            + ["-: |".rjust(len(item) - 1, "-") for item in header_items[1:]],
+        )
+
+        # Write the header
+        self.write(header_str)
+        self.write(rule_str)
+
+        # Write the data lines
+        for values in lines_values:
+            formats.update(
+                dict(
+                    Cover="{:>{n}}% |",
+                )
+            )
+            self.write_items(
+                (
+                    formats[item].format(
+                        escape_markdown(str(value)), name_len=max_name, n=max_n - 1
+                    )
+                    for item, value in zip(header, values)
+                )
+            )
+
+        # Write the TOTAL line
+        formats.update(
+            dict(
+                Name="|{:{name_len}} |",
+                Cover="{:>{n}} |",
+            ),
+        )
+        total_line_items: list[str] = []
+        for item, value in zip(header, total_line):
+            if value == "":
+                insert = value
+            elif item == "Cover":
+                insert = f" **{value}%**"
+            else:
+                insert = f" **{value}**"
+            total_line_items += formats[item].format(insert, name_len=max_name, n=max_n)
+        self.write_items(total_line_items)
+
+        for end_line in end_lines:
+            self.write(end_line)
+
+    def report(self, morfs: TMorfs, outfile: IO[str] | None = None) -> float:
+        """Writes a report summarizing coverage statistics per module.
+
+        `outfile` is a text-mode file object to write the summary to.
+
+        """
+        self.outfile = outfile or sys.stdout
+
+        self.coverage.get_data().set_query_contexts(self.config.report_contexts)
+        for fr, analysis in get_analysis_to_report(self.coverage, morfs):
+            self.report_one_file(fr, analysis)
+
+        if not self.total.n_files and not self.skipped_count:
+            raise NoDataError("No data to report.")
+
+        if self.output_format == "total":
+            self.write(self.total.pc_covered_str)
+        else:
+            self.tabular_report()
+
+        return self.total.pc_covered
+
+    def tabular_report(self) -> None:
+        """Writes tabular report formats."""
+        # Prepare the header line and column sorting.
+        header = ["Name", "Stmts", "Miss"]
+        if self.branches:
+            header += ["Branch", "BrPart"]
+        header += ["Cover"]
+        if self.config.show_missing:
+            header += ["Missing"]
+
+        column_order = dict(name=0, stmts=1, miss=2, cover=-1)
+        if self.branches:
+            column_order.update(dict(branch=3, brpart=4))
+
+        # `lines_values` is list of lists of sortable values.
+        lines_values = []
+
+        for fr, analysis in self.fr_analyses:
+            nums = analysis.numbers
+            args = [fr.relative_filename(), nums.n_statements, nums.n_missing]
+            if self.branches:
+                args += [nums.n_branches, nums.n_partial_branches]
+            args += [nums.pc_covered_str]
+            if self.config.show_missing:
+                args += [analysis.missing_formatted(branches=True)]
+            args += [nums.pc_covered]
+            lines_values.append(args)
+
+        # Line sorting.
+        sort_option = (self.config.sort or "name").lower()
+        reverse = False
+        if sort_option[0] == "-":
+            reverse = True
+            sort_option = sort_option[1:]
+        elif sort_option[0] == "+":
+            sort_option = sort_option[1:]
+        sort_idx = column_order.get(sort_option)
+        if sort_idx is None:
+            raise ConfigError(f"Invalid sorting option: {self.config.sort!r}")
+        if sort_option == "name":
+            lines_values = human_sorted_items(lines_values, reverse=reverse)
+        else:
+            lines_values.sort(
+                key=lambda line: (line[sort_idx], line[0]),
+                reverse=reverse,
+            )
+
+        # Calculate total if we had at least one file.
+        total_line = ["TOTAL", self.total.n_statements, self.total.n_missing]
+        if self.branches:
+            total_line += [self.total.n_branches, self.total.n_partial_branches]
+        total_line += [self.total.pc_covered_str]
+        if self.config.show_missing:
+            total_line += [""]
+
+        # Create other final lines.
+        end_lines = []
+        if self.config.skip_covered and self.skipped_count:
+            end_lines.append(
+                f"\n{plural(self.skipped_count, 'file')} skipped due to complete coverage.",
+            )
+        if self.config.skip_empty and self.empty_count:
+            end_lines.append(f"\n{plural(self.empty_count, 'empty file')} skipped.")
+
+        if self.output_format == "markdown":
+            formatter = self.report_markdown
+        else:
+            formatter = self.report_text
+        formatter(header, lines_values, total_line, end_lines)
+
+    def report_one_file(self, fr: FileReporter, analysis: Analysis) -> None:
+        """Report on just one file, the callback from report()."""
+        nums = analysis.numbers
+        self.total += nums
+
+        no_missing_lines = (nums.n_missing == 0)  # fmt: skip
+        no_missing_branches = (nums.n_partial_branches == 0)  # fmt: skip
+        if self.config.skip_covered and no_missing_lines and no_missing_branches:
+            # Don't report on 100% files.
+            self.skipped_count += 1
+        elif self.config.skip_empty and nums.n_statements == 0:
+            # Don't report on empty files.
+            self.empty_count += 1
+        else:
+            self.fr_analyses.append((fr, analysis))

calculator/lib/python3.12/site-packages/coverage/report_core.py

@@ -0,0 +1,117 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Reporter foundation for coverage.py."""
+
+from __future__ import annotations
+
+import sys
+from collections.abc import Callable, Iterable
+from typing import IO, TYPE_CHECKING, Protocol
+
+from coverage.exceptions import NoDataError, NotPython
+from coverage.files import GlobMatcher, prep_patterns
+from coverage.misc import ensure_dir_for_file, file_be_gone
+from coverage.plugin import FileReporter
+from coverage.results import Analysis
+from coverage.types import TMorfs
+
+if TYPE_CHECKING:
+    from coverage import Coverage
+
+
+class Reporter(Protocol):
+    """What we expect of reporters."""
+
+    report_type: str
+
+    def report(self, morfs: TMorfs, outfile: IO[str]) -> float:
+        """Generate a report of `morfs`, written to `outfile`."""
+
+
+def render_report(
+    output_path: str,
+    reporter: Reporter,
+    morfs: TMorfs,
+    msgfn: Callable[[str], None],
+) -> float:
+    """Run a one-file report generator, managing the output file.
+
+    This function ensures the output file is ready to be written to. Then writes
+    the report to it. Then closes the file and cleans up.
+
+    """
+    file_to_close = None
+    delete_file = False
+
+    if output_path == "-":
+        outfile = sys.stdout
+    else:
+        # Ensure that the output directory is created; done here because this
+        # report pre-opens the output file.  HtmlReporter does this on its own
+        # because its task is more complex, being multiple files.
+        ensure_dir_for_file(output_path)
+        outfile = open(output_path, "w", encoding="utf-8")
+        file_to_close = outfile
+        delete_file = True
+
+    try:
+        ret = reporter.report(morfs, outfile=outfile)
+        if file_to_close is not None:
+            msgfn(f"Wrote {reporter.report_type} to {output_path}")
+        delete_file = False
+        return ret
+    finally:
+        if file_to_close is not None:
+            file_to_close.close()
+            if delete_file:
+                file_be_gone(output_path)  # pragma: part covered (doesn't return)
+
+
+def get_analysis_to_report(
+    coverage: Coverage,
+    morfs: TMorfs,
+) -> Iterable[tuple[FileReporter, Analysis]]:
+    """Get the files to report on.
+
+    For each morf in `morfs`, if it should be reported on (based on the omit
+    and include configuration options), yield a pair, the `FileReporter` and
+    `Analysis` for the morf.
+
+    """
+    fr_morfs = coverage._get_file_reporters(morfs)
+    config = coverage.config
+
+    if config.report_include:
+        matcher = GlobMatcher(prep_patterns(config.report_include), "report_include")
+        fr_morfs = [(fr, morf) for (fr, morf) in fr_morfs if matcher.match(fr.filename)]
+
+    if config.report_omit:
+        matcher = GlobMatcher(prep_patterns(config.report_omit), "report_omit")
+        fr_morfs = [(fr, morf) for (fr, morf) in fr_morfs if not matcher.match(fr.filename)]
+
+    if not fr_morfs:
+        raise NoDataError("No data to report.")
+
+    for fr, morf in sorted(fr_morfs):
+        try:
+            analysis = coverage._analyze(morf)
+        except NotPython:
+            # Only report errors for .py files, and only if we didn't
+            # explicitly suppress those errors.
+            # NotPython is only raised by PythonFileReporter, which has a
+            # should_be_python() method.
+            if fr.should_be_python():  # type: ignore[attr-defined]
+                if config.ignore_errors:
+                    msg = f"Couldn't parse Python file '{fr.filename}'"
+                    coverage._warn(msg, slug="couldnt-parse")
+                else:
+                    raise
+        except Exception as exc:
+            if config.ignore_errors:
+                msg = f"Couldn't parse '{fr.filename}': {exc}".rstrip()
+                coverage._warn(msg, slug="couldnt-parse")
+            else:
+                raise
+        else:
+            yield (fr, analysis)

calculator/lib/python3.12/site-packages/coverage/results.py

@@ -0,0 +1,502 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Results of coverage measurement."""
+
+from __future__ import annotations
+
+import collections
+from collections.abc import Iterable
+from dataclasses import dataclass
+from typing import TYPE_CHECKING
+
+from coverage.exceptions import ConfigError
+from coverage.misc import nice_pair
+from coverage.types import TArc, TLineNo
+
+if TYPE_CHECKING:
+    from coverage.data import CoverageData
+    from coverage.plugin import FileReporter
+
+
+def analysis_from_file_reporter(
+    data: CoverageData,
+    precision: int,
+    file_reporter: FileReporter,
+    filename: str,
+) -> Analysis:
+    """Create an Analysis from a FileReporter."""
+    has_arcs = data.has_arcs()
+    statements = file_reporter.lines()
+    excluded = file_reporter.excluded_lines()
+    executed = file_reporter.translate_lines(data.lines(filename) or []) & statements
+
+    if has_arcs:
+        arc_possibilities_set = file_reporter.arcs()
+        arcs: Iterable[TArc] = data.arcs(filename) or []
+        arcs = file_reporter.translate_arcs(arcs)
+
+        # Reduce the set of arcs to the ones that could be branches.
+        dests = collections.defaultdict(set)
+        for fromno, tono in arc_possibilities_set:
+            dests[fromno].add(tono)
+        single_dests = {
+            fromno: list(tonos)[0] for fromno, tonos in dests.items() if len(tonos) == 1
+        }
+        new_arcs = set()
+        for fromno, tono in arcs:
+            if fromno != tono:
+                new_arcs.add((fromno, tono))
+            else:
+                if fromno in single_dests:
+                    new_arcs.add((fromno, single_dests[fromno]))
+
+        arcs_executed_set = file_reporter.translate_arcs(new_arcs)
+        exit_counts = file_reporter.exit_counts()
+        no_branch = file_reporter.no_branch_lines()
+    else:
+        arc_possibilities_set = set()
+        arcs_executed_set = set()
+        exit_counts = {}
+        no_branch = set()
+
+    return Analysis(
+        precision=precision,
+        filename=filename,
+        has_arcs=has_arcs,
+        statements=statements,
+        excluded=excluded,
+        executed=executed,
+        arc_possibilities_set=arc_possibilities_set,
+        arcs_executed_set=arcs_executed_set,
+        exit_counts=exit_counts,
+        no_branch=no_branch,
+    )
+
+
+@dataclass
+class Analysis:
+    """The results of analyzing a FileReporter."""
+
+    precision: int
+    filename: str
+    has_arcs: bool
+    statements: set[TLineNo]
+    excluded: set[TLineNo]
+    executed: set[TLineNo]
+    arc_possibilities_set: set[TArc]
+    arcs_executed_set: set[TArc]
+    exit_counts: dict[TLineNo, int]
+    no_branch: set[TLineNo]
+
+    def __post_init__(self) -> None:
+        self.arc_possibilities = sorted(self.arc_possibilities_set)
+        self.arcs_executed = sorted(self.arcs_executed_set)
+        self.missing = self.statements - self.executed
+
+        if self.has_arcs:
+            n_branches = self._total_branches()
+            mba = self.missing_branch_arcs()
+            n_partial_branches = sum(len(v) for k, v in mba.items() if k not in self.missing)
+            n_missing_branches = sum(len(v) for k, v in mba.items())
+        else:
+            n_branches = n_partial_branches = n_missing_branches = 0
+
+        self.numbers = Numbers(
+            precision=self.precision,
+            n_files=1,
+            n_statements=len(self.statements),
+            n_excluded=len(self.excluded),
+            n_missing=len(self.missing),
+            n_branches=n_branches,
+            n_partial_branches=n_partial_branches,
+            n_missing_branches=n_missing_branches,
+        )
+
+    def missing_formatted(self, branches: bool = False) -> str:
+        """The missing line numbers, formatted nicely.
+
+        Returns a string like "1-2, 5-11, 13-14".
+
+        If `branches` is true, includes the missing branch arcs also.
+
+        """
+        if branches and self.has_arcs:
+            arcs = self.missing_branch_arcs().items()
+        else:
+            arcs = None
+
+        return format_lines(self.statements, self.missing, arcs=arcs)
+
+    def arcs_missing(self) -> list[TArc]:
+        """Returns a sorted list of the un-executed arcs in the code."""
+        missing = (
+            p
+            for p in self.arc_possibilities
+            if p not in self.arcs_executed_set
+            and p[0] not in self.no_branch
+            and p[1] not in self.excluded
+        )
+        return sorted(missing)
+
+    def _branch_lines(self) -> list[TLineNo]:
+        """Returns a list of line numbers that have more than one exit."""
+        return [l1 for l1, count in self.exit_counts.items() if count > 1]
+
+    def _total_branches(self) -> int:
+        """How many total branches are there?"""
+        return sum(count for count in self.exit_counts.values() if count > 1)
+
+    def missing_branch_arcs(self) -> dict[TLineNo, list[TLineNo]]:
+        """Return arcs that weren't executed from branch lines.
+
+        Returns {l1:[l2a,l2b,...], ...}
+
+        """
+        missing = self.arcs_missing()
+        branch_lines = set(self._branch_lines())
+        mba = collections.defaultdict(list)
+        for l1, l2 in missing:
+            assert l1 != l2, f"In {self.filename}, didn't expect {l1} == {l2}"
+            if l1 in branch_lines:
+                mba[l1].append(l2)
+        return mba
+
+    def executed_branch_arcs(self) -> dict[TLineNo, list[TLineNo]]:
+        """Return arcs that were executed from branch lines.
+
+        Only include ones that we considered possible.
+
+        Returns {l1:[l2a,l2b,...], ...}
+
+        """
+        branch_lines = set(self._branch_lines())
+        eba = collections.defaultdict(list)
+        for l1, l2 in self.arcs_executed:
+            assert l1 != l2, f"Oops: Didn't think this could happen: {l1 = }, {l2 = }"
+            if (l1, l2) not in self.arc_possibilities_set:
+                continue
+            if l1 in branch_lines:
+                eba[l1].append(l2)
+        return eba
+
+    def branch_stats(self) -> dict[TLineNo, tuple[int, int]]:
+        """Get stats about branches.
+
+        Returns a dict mapping line numbers to a tuple:
+        (total_exits, taken_exits).
+
+        """
+
+        missing_arcs = self.missing_branch_arcs()
+        stats = {}
+        for lnum in self._branch_lines():
+            exits = self.exit_counts[lnum]
+            missing = len(missing_arcs[lnum])
+            stats[lnum] = (exits, exits - missing)
+        return stats
+
+
+TRegionLines = frozenset[TLineNo]
+
+
+class AnalysisNarrower:
+    """
+    For reducing an `Analysis` to a subset of its lines.
+
+    Originally this was a simpler method on Analysis, but that led to quadratic
+    behavior.  This class does the bulk of the work up-front to provide the
+    same results in linear time.
+
+    Create an AnalysisNarrower from an Analysis, bulk-add region lines to it
+    with `add_regions`, then individually request new narrowed Analysis objects
+    for each region with `narrow`.  Doing most of the work in limited calls to
+    `add_regions` lets us avoid poor performance.
+    """
+
+    # In this class, regions are represented by a frozenset of their lines.
+
+    def __init__(self, analysis: Analysis) -> None:
+        self.analysis = analysis
+        self.region2arc_possibilities: dict[TRegionLines, set[TArc]] = collections.defaultdict(set)
+        self.region2arc_executed: dict[TRegionLines, set[TArc]] = collections.defaultdict(set)
+        self.region2exit_counts: dict[TRegionLines, dict[TLineNo, int]] = collections.defaultdict(
+            dict
+        )
+
+    def add_regions(self, liness: Iterable[set[TLineNo]]) -> None:
+        """
+        Pre-process a number of sets of line numbers.  Later calls to `narrow`
+        with one of these sets will provide a narrowed Analysis.
+        """
+        if self.analysis.has_arcs:
+            line2region: dict[TLineNo, TRegionLines] = {}
+
+            for lines in liness:
+                fzlines = frozenset(lines)
+                for line in lines:
+                    line2region[line] = fzlines
+
+            def collect_arcs(
+                arc_set: set[TArc],
+                region2arcs: dict[TRegionLines, set[TArc]],
+            ) -> None:
+                for a, b in arc_set:
+                    if r := line2region.get(a):
+                        region2arcs[r].add((a, b))
+                    if r := line2region.get(b):
+                        region2arcs[r].add((a, b))
+
+            collect_arcs(self.analysis.arc_possibilities_set, self.region2arc_possibilities)
+            collect_arcs(self.analysis.arcs_executed_set, self.region2arc_executed)
+
+            for lno, num in self.analysis.exit_counts.items():
+                if r := line2region.get(lno):
+                    self.region2exit_counts[r][lno] = num
+
+    def narrow(self, lines: set[TLineNo]) -> Analysis:
+        """Create a narrowed Analysis.
+
+        The current analysis is copied to make a new one that only considers
+        the lines in `lines`.
+        """
+
+        # Technically, the set intersections in this method are still O(N**2)
+        # since this method is called N times, but they're very fast and moving
+        # them to `add_regions` won't avoid the quadratic time.
+
+        statements = self.analysis.statements & lines
+        excluded = self.analysis.excluded & lines
+        executed = self.analysis.executed & lines
+
+        if self.analysis.has_arcs:
+            fzlines = frozenset(lines)
+            arc_possibilities_set = self.region2arc_possibilities[fzlines]
+            arcs_executed_set = self.region2arc_executed[fzlines]
+            exit_counts = self.region2exit_counts[fzlines]
+            no_branch = self.analysis.no_branch & lines
+        else:
+            arc_possibilities_set = set()
+            arcs_executed_set = set()
+            exit_counts = {}
+            no_branch = set()
+
+        return Analysis(
+            precision=self.analysis.precision,
+            filename=self.analysis.filename,
+            has_arcs=self.analysis.has_arcs,
+            statements=statements,
+            excluded=excluded,
+            executed=executed,
+            arc_possibilities_set=arc_possibilities_set,
+            arcs_executed_set=arcs_executed_set,
+            exit_counts=exit_counts,
+            no_branch=no_branch,
+        )
+
+
+@dataclass
+class Numbers:
+    """The numerical results of measuring coverage.
+
+    This holds the basic statistics from `Analysis`, and is used to roll
+    up statistics across files.
+
+    """
+
+    precision: int = 0
+    n_files: int = 0
+    n_statements: int = 0
+    n_excluded: int = 0
+    n_missing: int = 0
+    n_branches: int = 0
+    n_partial_branches: int = 0
+    n_missing_branches: int = 0
+
+    @property
+    def n_executed(self) -> int:
+        """Returns the number of executed statements."""
+        return self.n_statements - self.n_missing
+
+    @property
+    def n_executed_branches(self) -> int:
+        """Returns the number of executed branches."""
+        return self.n_branches - self.n_missing_branches
+
+    @property
+    def ratio_statements(self) -> tuple[int, int]:
+        """Return numerator/denominator for statement coverage."""
+        return self.n_executed, self.n_statements
+
+    @property
+    def ratio_branches(self) -> tuple[int, int]:
+        """Return numerator/denominator for branch coverage."""
+        return self.n_executed_branches, self.n_branches
+
+    def _percent(self, numerator: int, denominator: int) -> float:
+        """Helper for pc_* properties."""
+        if denominator > 0:
+            return (100.0 * numerator) / denominator
+        return 100.0
+
+    @property
+    def pc_covered(self) -> float:
+        """Returns a single percentage value for coverage."""
+        return self._percent(*self.ratio_covered)
+
+    @property
+    def pc_statements(self) -> float:
+        """Returns the percentage covered for statements."""
+        return self._percent(*self.ratio_statements)
+
+    @property
+    def pc_branches(self) -> float:
+        """Returns the percentage covered for branches."""
+        return self._percent(*self.ratio_branches)
+
+    @property
+    def pc_covered_str(self) -> str:
+        """Returns the percent covered, as a string, without a percent sign.
+
+        Note that "0" is only returned when the value is truly zero, and "100"
+        is only returned when the value is truly 100.  Rounding can never
+        result in either "0" or "100".
+
+        """
+        return display_covered(self.pc_covered, self.precision)
+
+    @property
+    def pc_statements_str(self) -> str:
+        """Returns the statement percent covered without a percent sign."""
+        return display_covered(self.pc_statements, self.precision)
+
+    @property
+    def pc_branches_str(self) -> str:
+        """Returns the branch percent covered without a percent sign."""
+        return display_covered(self.pc_branches, self.precision)
+
+    @property
+    def ratio_covered(self) -> tuple[int, int]:
+        """Return a numerator and denominator for the coverage ratio."""
+        numerator = self.n_executed + self.n_executed_branches
+        denominator = self.n_statements + self.n_branches
+        return numerator, denominator
+
+    def __add__(self, other: Numbers) -> Numbers:
+        return Numbers(
+            self.precision,
+            self.n_files + other.n_files,
+            self.n_statements + other.n_statements,
+            self.n_excluded + other.n_excluded,
+            self.n_missing + other.n_missing,
+            self.n_branches + other.n_branches,
+            self.n_partial_branches + other.n_partial_branches,
+            self.n_missing_branches + other.n_missing_branches,
+        )
+
+    def __radd__(self, other: int) -> Numbers:
+        # Implementing 0+Numbers allows us to sum() a list of Numbers.
+        assert other == 0  # we only ever call it this way.
+        return self
+
+
+def display_covered(pc: float, precision: int) -> str:
+    """Return a displayable total percentage, as a string.
+
+    Note that "0" is only returned when the value is truly zero, and "100"
+    is only returned when the value is truly 100.  Rounding can never
+    result in either "0" or "100".
+
+    """
+    near0 = 1.0 / 10**precision
+    if 0 < pc < near0:
+        pc = near0
+    elif (100.0 - near0) < pc < 100:
+        pc = 100.0 - near0
+    else:
+        pc = round(pc, precision)
+    return f"{pc:.{precision}f}"
+
+
+def _line_ranges(
+    statements: Iterable[TLineNo],
+    lines: Iterable[TLineNo],
+) -> list[tuple[TLineNo, TLineNo]]:
+    """Produce a list of ranges for `format_lines`."""
+    statements = sorted(statements)
+    lines = sorted(lines)
+
+    pairs = []
+    start: TLineNo | None = None
+    lidx = 0
+    for stmt in statements:
+        if lidx >= len(lines):
+            break
+        if stmt == lines[lidx]:
+            lidx += 1
+            if not start:
+                start = stmt
+            end = stmt
+        elif start:
+            pairs.append((start, end))
+            start = None
+    if start:
+        pairs.append((start, end))
+    return pairs
+
+
+def format_lines(
+    statements: Iterable[TLineNo],
+    lines: Iterable[TLineNo],
+    arcs: Iterable[tuple[TLineNo, list[TLineNo]]] | None = None,
+) -> str:
+    """Nicely format a list of line numbers.
+
+    Format a list of line numbers for printing by coalescing groups of lines as
+    long as the lines represent consecutive statements.  This will coalesce
+    even if there are gaps between statements.
+
+    For example, if `statements` is [1,2,3,4,5,10,11,12,13,14] and
+    `lines` is [1,2,5,10,11,13,14] then the result will be "1-2, 5-11, 13-14".
+
+    Both `lines` and `statements` can be any iterable. All of the elements of
+    `lines` must be in `statements`, and all of the values must be positive
+    integers.
+
+    If `arcs` is provided, they are (start,[end,end,end]) pairs that will be
+    included in the output as long as start isn't in `lines`.
+
+    """
+    line_items = [(pair[0], nice_pair(pair)) for pair in _line_ranges(statements, lines)]
+    if arcs is not None:
+        line_exits = sorted(arcs)
+        for line, exits in line_exits:
+            for ex in sorted(exits):
+                if line not in lines and ex not in lines:
+                    dest = ex if ex > 0 else "exit"
+                    line_items.append((line, f"{line}->{dest}"))
+
+    ret = ", ".join(t[-1] for t in sorted(line_items))
+    return ret
+
+
+def should_fail_under(total: float, fail_under: float, precision: int) -> bool:
+    """Determine if a total should fail due to fail-under.
+
+    `total` is a float, the coverage measurement total. `fail_under` is the
+    fail_under setting to compare with. `precision` is the number of digits
+    to consider after the decimal point.
+
+    Returns True if the total should fail.
+
+    """
+    # We can never achieve higher than 100% coverage, or less than zero.
+    if not (0 <= fail_under <= 100.0):
+        msg = f"fail_under={fail_under} is invalid. Must be between 0 and 100."
+        raise ConfigError(msg)
+
+    # Special case for fail_under=100, it must really be 100.
+    if fail_under == 100.0 and total != 100.0:
+        return True
+
+    return round(total, precision) < fail_under

calculator/lib/python3.12/site-packages/coverage/sqlitedb.py

@@ -0,0 +1,226 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""SQLite abstraction for coverage.py"""
+
+from __future__ import annotations
+
+import contextlib
+import re
+import sqlite3
+from collections.abc import Iterable, Iterator
+from typing import Any, cast
+
+from coverage.debug import auto_repr, clipped_repr, exc_one_line
+from coverage.exceptions import DataError
+from coverage.types import TDebugCtl
+
+
+class SqliteDb:
+    """A simple abstraction over a SQLite database.
+
+    Use as a context manager, then you can use it like a
+    :class:`python:sqlite3.Connection` object::
+
+        with SqliteDb(filename, debug_control) as db:
+            with db.execute("select a, b from some_table") as cur:
+                for a, b in cur:
+                    etc(a, b)
+
+    """
+
+    def __init__(self, filename: str, debug: TDebugCtl, no_disk: bool = False) -> None:
+        self.debug = debug
+        self.filename = filename
+        self.no_disk = no_disk
+        self.nest = 0
+        self.con: sqlite3.Connection | None = None
+
+    __repr__ = auto_repr
+
+    def _connect(self) -> None:
+        """Connect to the db and do universal initialization."""
+        if self.con is not None:
+            return
+
+        # It can happen that Python switches threads while the tracer writes
+        # data. The second thread will also try to write to the data,
+        # effectively causing a nested context. However, given the idempotent
+        # nature of the tracer operations, sharing a connection among threads
+        # is not a problem.
+        if self.debug.should("sql"):
+            self.debug.write(f"Connecting to {self.filename!r}")
+        try:
+            # Use uri=True when connecting to memory URIs
+            if self.filename.startswith("file:"):
+                self.con = sqlite3.connect(self.filename, check_same_thread=False, uri=True)
+            else:
+                self.con = sqlite3.connect(self.filename, check_same_thread=False)
+        except sqlite3.Error as exc:
+            raise DataError(f"Couldn't use data file {self.filename!r}: {exc}") from exc
+
+        if self.debug.should("sql"):
+            self.debug.write(f"Connected to {self.filename!r} as {self.con!r}")
+
+        self.con.create_function("REGEXP", 2, lambda txt, pat: re.search(txt, pat) is not None)
+
+        # Turning off journal_mode can speed up writing. It can't always be
+        # disabled, so we have to be prepared for *-journal files elsewhere.
+        # In Python 3.12+, we can change the config to allow journal_mode=off.
+        if hasattr(sqlite3, "SQLITE_DBCONFIG_DEFENSIVE"):
+            # Turn off defensive mode, so that journal_mode=off can succeed.
+            self.con.setconfig(  # type: ignore[attr-defined, unused-ignore]
+                sqlite3.SQLITE_DBCONFIG_DEFENSIVE,
+                False,
+            )
+
+        # This pragma makes writing faster. It disables rollbacks, but we never need them.
+        self.execute_void("pragma journal_mode=off")
+
+        # This pragma makes writing faster. It can fail in unusual situations
+        # (https://github.com/coveragepy/coveragepy/issues/1646), so use fail_ok=True
+        # to keep things going.
+        self.execute_void("pragma synchronous=off", fail_ok=True)
+
+    def close(self, force: bool = False) -> None:
+        """If needed, close the connection."""
+        if self.con is not None:
+            if force or not self.no_disk:
+                if self.debug.should("sql"):
+                    self.debug.write(f"Closing {self.con!r} on {self.filename!r}")
+                self.con.close()
+                self.con = None
+
+    def __enter__(self) -> SqliteDb:
+        if self.nest == 0:
+            self._connect()
+            assert self.con is not None
+            self.con.__enter__()
+        self.nest += 1
+        return self
+
+    def __exit__(self, exc_type, exc_value, traceback) -> None:  # type: ignore[no-untyped-def]
+        self.nest -= 1
+        if self.nest == 0:
+            try:
+                assert self.con is not None
+                self.con.__exit__(exc_type, exc_value, traceback)
+                self.close()
+            except Exception as exc:
+                if self.debug.should("sql"):
+                    self.debug.write(f"EXCEPTION from __exit__: {exc_one_line(exc)}")
+                raise DataError(f"Couldn't end data file {self.filename!r}: {exc}") from exc
+
+    def _execute(self, sql: str, parameters: Iterable[Any]) -> sqlite3.Cursor:
+        """Same as :meth:`python:sqlite3.Connection.execute`."""
+        if self.debug.should("sql"):
+            tail = f" with {parameters!r}" if parameters else ""
+            self.debug.write(f"Executing {sql!r}{tail}")
+        try:
+            assert self.con is not None
+            try:
+                return self.con.execute(sql, parameters)  # type: ignore[arg-type]
+            except Exception:
+                # In some cases, an error might happen that isn't really an
+                # error.  Try again immediately.
+                # https://github.com/coveragepy/coveragepy/issues/1010
+                return self.con.execute(sql, parameters)  # type: ignore[arg-type]
+        except sqlite3.Error as exc:
+            msg = str(exc)
+            if self.debug.should("sql"):
+                self.debug.write(f"EXCEPTION from execute: {exc_one_line(exc)}")
+            raise DataError(f"Couldn't use data file {self.filename!r}: {msg}") from exc
+
+    @contextlib.contextmanager
+    def execute(
+        self,
+        sql: str,
+        parameters: Iterable[Any] = (),
+    ) -> Iterator[sqlite3.Cursor]:
+        """Context managed :meth:`python:sqlite3.Connection.execute`.
+
+        Use with a ``with`` statement to auto-close the returned cursor.
+        """
+        cur = self._execute(sql, parameters)
+        try:
+            yield cur
+        finally:
+            cur.close()
+
+    def execute_void(self, sql: str, parameters: Iterable[Any] = (), fail_ok: bool = False) -> None:
+        """Same as :meth:`python:sqlite3.Connection.execute` when you don't need the cursor.
+
+        If `fail_ok` is True, then SQLite errors are ignored.
+        """
+        try:
+            # PyPy needs the .close() calls here, or sqlite gets twisted up:
+            # https://bitbucket.org/pypy/pypy/issues/2872/default-isolation-mode-is-different-on
+            self._execute(sql, parameters).close()
+        except DataError:
+            if not fail_ok:
+                raise
+
+    def execute_for_rowid(self, sql: str, parameters: Iterable[Any] = ()) -> int:
+        """Like execute, but returns the lastrowid."""
+        with self.execute(sql, parameters) as cur:
+            assert cur.lastrowid is not None
+            rowid: int = cur.lastrowid
+        if self.debug.should("sqldata"):
+            self.debug.write(f"Row id result: {rowid!r}")
+        return rowid
+
+    def execute_one(self, sql: str, parameters: Iterable[Any] = ()) -> tuple[Any, ...] | None:
+        """Execute a statement and return the one row that results.
+
+        This is like execute(sql, parameters).fetchone(), except it is
+        correct in reading the entire result set.  This will raise an
+        exception if more than one row results.
+
+        Returns a row, or None if there were no rows.
+        """
+        with self.execute(sql, parameters) as cur:
+            rows = list(cur)
+        if len(rows) == 0:
+            return None
+        elif len(rows) == 1:
+            return cast(tuple[Any, ...], rows[0])
+        else:
+            raise AssertionError(f"SQL {sql!r} shouldn't return {len(rows)} rows")
+
+    def _executemany(self, sql: str, data: list[Any]) -> sqlite3.Cursor:
+        """Same as :meth:`python:sqlite3.Connection.executemany`."""
+        if self.debug.should("sql"):
+            final = ":" if self.debug.should("sqldata") else ""
+            self.debug.write(f"Executing many {sql!r} with {len(data)} rows{final}")
+            if self.debug.should("sqldata"):
+                for i, row in enumerate(data):
+                    self.debug.write(f"{i:4d}: {row!r}")
+        assert self.con is not None
+        try:
+            return self.con.executemany(sql, data)
+        except Exception:
+            # In some cases, an error might happen that isn't really an
+            # error.  Try again immediately.
+            # https://github.com/coveragepy/coveragepy/issues/1010
+            return self.con.executemany(sql, data)
+
+    def executemany_void(self, sql: str, data: list[Any]) -> None:
+        """Same as :meth:`python:sqlite3.Connection.executemany` when you don't need the cursor."""
+        self._executemany(sql, data).close()
+
+    def executescript(self, script: str) -> None:
+        """Same as :meth:`python:sqlite3.Connection.executescript`."""
+        if self.debug.should("sql"):
+            self.debug.write(
+                "Executing script with {} chars: {}".format(
+                    len(script),
+                    clipped_repr(script, 100),
+                )
+            )
+        assert self.con is not None
+        self.con.executescript(script).close()
+
+    def dump(self) -> str:
+        """Return a multi-line string, the SQL dump of the database."""
+        assert self.con is not None
+        return "\n".join(self.con.iterdump())

calculator/lib/python3.12/site-packages/coverage/sysmon.py

@@ -0,0 +1,499 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Callback functions and support for sys.monitoring data collection."""
+
+from __future__ import annotations
+
+import collections
+import functools
+import inspect
+import os
+import os.path
+import sys
+import threading
+import traceback
+from collections.abc import Callable
+from dataclasses import dataclass
+from types import CodeType
+from typing import Any, NewType, Optional, cast
+
+from coverage import env
+from coverage.bytecode import TBranchTrails, always_jumps, branch_trails, bytes_to_lines
+from coverage.debug import short_filename, short_stack
+from coverage.exceptions import NoSource, NotPython
+from coverage.misc import isolate_module
+from coverage.parser import PythonParser
+from coverage.types import (
+    AnyCallable,
+    TFileDisposition,
+    TLineNo,
+    TOffset,
+    Tracer,
+    TShouldStartContextFn,
+    TShouldTraceFn,
+    TTraceData,
+    TTraceFileData,
+    TWarnFn,
+)
+
+# Only needed for some of the commented-out logging:
+# from coverage.debug import ppformat
+
+os = isolate_module(os)
+
+# pylint: disable=unused-argument
+
+# $set_env.py: COVERAGE_SYSMON_LOG - Log sys.monitoring activity
+LOG = bool(int(os.getenv("COVERAGE_SYSMON_LOG", 0)))
+
+# $set_env.py: COVERAGE_SYSMON_STATS - Collect sys.monitoring stats
+COLLECT_STATS = bool(int(os.getenv("COVERAGE_SYSMON_STATS", 0)))
+
+# This module will be imported in all versions of Python, but only used in 3.12+
+# It will be type-checked for 3.12, but not for earlier versions.
+sys_monitoring = getattr(sys, "monitoring", None)
+
+DISABLE_TYPE = NewType("DISABLE_TYPE", object)
+MonitorReturn = Optional[DISABLE_TYPE]
+DISABLE = cast(MonitorReturn, getattr(sys_monitoring, "DISABLE", None))
+
+
+if LOG:  # pragma: debugging
+
+    class LoggingWrapper:
+        """Wrap a namespace to log all its functions."""
+
+        def __init__(self, wrapped: Any, namespace: str) -> None:
+            self.wrapped = wrapped
+            self.namespace = namespace
+
+        def __getattr__(self, name: str) -> Callable[..., Any]:
+            def _wrapped(*args: Any, **kwargs: Any) -> Any:
+                log(f"{self.namespace}.{name}{args}{kwargs}")
+                return getattr(self.wrapped, name)(*args, **kwargs)
+
+            return _wrapped
+
+    sys_monitoring = LoggingWrapper(sys_monitoring, "sys.monitoring")
+    assert sys_monitoring is not None
+
+    short_stack = functools.partial(
+        short_stack,
+        full=True,
+        short_filenames=True,
+        frame_ids=True,
+    )
+    seen_threads: set[int] = set()
+
+    def log(msg: str) -> None:
+        """Write a message to our detailed debugging log(s)."""
+        # Thread ids are reused across processes?
+        # Make a shorter number more likely to be unique.
+        pid = os.getpid()
+        tid = cast(int, threading.current_thread().ident)
+        tslug = f"{(pid * tid) % 9_999_991:07d}"
+        if tid not in seen_threads:
+            seen_threads.add(tid)
+            log(f"New thread {tid} {tslug}:\n{short_stack()}")
+        # log_seq = int(os.getenv("PANSEQ", "0"))
+        # root = f"/tmp/pan.{log_seq:03d}"
+        for filename in [
+            "/tmp/foo.out",
+            # f"{root}.out",
+            # f"{root}-{pid}.out",
+            # f"{root}-{pid}-{tslug}.out",
+        ]:
+            with open(filename, "a", encoding="utf-8") as f:
+                try:
+                    print(f"{pid}:{tslug}: {msg}", file=f, flush=True)
+                except UnicodeError:
+                    print(f"{pid}:{tslug}: {ascii(msg)}", file=f, flush=True)
+
+    def arg_repr(arg: Any) -> str:
+        """Make a customized repr for logged values."""
+        if isinstance(arg, CodeType):
+            return (
+                f"<code @{id(arg):#x}"
+                + f" name={arg.co_name},"
+                + f" file={short_filename(arg.co_filename)!r}#{arg.co_firstlineno}>"
+            )
+        return repr(arg)
+
+    def panopticon(*names: str | None) -> AnyCallable:
+        """Decorate a function to log its calls."""
+
+        def _decorator(method: AnyCallable) -> AnyCallable:
+            @functools.wraps(method)
+            def _wrapped(self: Any, *args: Any) -> Any:
+                try:
+                    # log(f"{method.__name__}() stack:\n{short_stack()}")
+                    args_reprs = []
+                    for name, arg in zip(names, args):
+                        if name is None:
+                            continue
+                        args_reprs.append(f"{name}={arg_repr(arg)}")
+                    log(f"{id(self):#x}:{method.__name__}({', '.join(args_reprs)})")
+                    ret = method(self, *args)
+                    # log(f" end {id(self):#x}:{method.__name__}({', '.join(args_reprs)})")
+                    return ret
+                except Exception as exc:
+                    log(f"!!{exc.__class__.__name__}: {exc}")
+                    if 1:
+                        log("".join(traceback.format_exception(exc)))
+                    try:
+                        assert sys_monitoring is not None
+                        sys_monitoring.set_events(sys.monitoring.COVERAGE_ID, 0)
+                    except ValueError:
+                        # We might have already shut off monitoring.
+                        log("oops, shutting off events with disabled tool id")
+                    raise
+
+            return _wrapped
+
+        return _decorator
+
+else:
+
+    def log(msg: str) -> None:
+        """Write a message to our detailed debugging log(s), but not really."""
+
+    def panopticon(*names: str | None) -> AnyCallable:
+        """Decorate a function to log its calls, but not really."""
+
+        def _decorator(meth: AnyCallable) -> AnyCallable:
+            return meth
+
+        return _decorator
+
+
+@dataclass
+class CodeInfo:
+    """The information we want about each code object."""
+
+    tracing: bool
+    file_data: TTraceFileData | None
+    byte_to_line: dict[TOffset, TLineNo] | None
+
+    # Keys are start instruction offsets for branches.
+    # Values are dicts:
+    #   {
+    #       (from_line, to_line): {offset, offset, ...},
+    #       (from_line, to_line): {offset, offset, ...},
+    #   }
+    branch_trails: TBranchTrails
+
+    # Always-jumps are bytecode offsets that do no work but move
+    # to another offset.
+    always_jumps: dict[TOffset, TOffset]
+
+
+class SysMonitor(Tracer):
+    """Python implementation of the raw data tracer for PEP669 implementations."""
+
+    # One of these will be used across threads. Be careful.
+
+    def __init__(self, tool_id: int) -> None:
+        # Attributes set from the collector:
+        self.data: TTraceData
+        self.trace_arcs = False
+        self.should_trace: TShouldTraceFn
+        self.should_trace_cache: dict[str, TFileDisposition | None]
+        # TODO: should_start_context and switch_context are unused!
+        # Change tests/testenv.py:DYN_CONTEXTS when this is updated.
+        self.should_start_context: TShouldStartContextFn | None = None
+        self.switch_context: Callable[[str | None], None] | None = None
+        self.lock_data: Callable[[], None]
+        self.unlock_data: Callable[[], None]
+        # TODO: warn is unused.
+        self.warn: TWarnFn
+
+        self.myid = tool_id
+
+        # Map id(code_object) -> CodeInfo
+        self.code_infos: dict[int, CodeInfo] = {}
+        # A list of code_objects, just to keep them alive so that id's are
+        # useful as identity.
+        self.code_objects: list[CodeType] = []
+
+        # Map filename:__name__ -> set(id(code_object))
+        self.filename_code_ids: dict[str, set[int]] = collections.defaultdict(set)
+
+        self.sysmon_on = False
+        self.lock = threading.Lock()
+
+        self.stats: dict[str, int] | None = None
+        if COLLECT_STATS:
+            self.stats = dict.fromkeys(
+                "starts start_tracing returns line_lines line_arcs branches branch_trails".split(),
+                0,
+            )
+
+        self._activity = False
+
+    def __repr__(self) -> str:
+        points = sum(len(v) for v in self.data.values())
+        files = len(self.data)
+        return f"<SysMonitor at {id(self):#x}: {points} data points in {files} files>"
+
+    @panopticon()
+    def start(self) -> None:
+        """Start this Tracer."""
+        with self.lock:
+            assert sys_monitoring is not None
+            sys_monitoring.use_tool_id(self.myid, "coverage.py")
+            register = functools.partial(sys_monitoring.register_callback, self.myid)
+            events = sys.monitoring.events
+
+            sys_monitoring.set_events(self.myid, events.PY_START)
+            register(events.PY_START, self.sysmon_py_start)
+            if self.trace_arcs:
+                register(events.PY_RETURN, self.sysmon_py_return)
+                register(events.LINE, self.sysmon_line_arcs)
+                if env.PYBEHAVIOR.branch_right_left:
+                    register(events.BRANCH_RIGHT, self.sysmon_branch_either)
+                    register(events.BRANCH_LEFT, self.sysmon_branch_either)
+            else:
+                register(events.LINE, self.sysmon_line_lines)
+            sys_monitoring.restart_events()
+            self.sysmon_on = True
+
+    @panopticon()
+    def stop(self) -> None:
+        """Stop this Tracer."""
+        with self.lock:
+            if not self.sysmon_on:
+                # In forking situations, we might try to stop when we are not
+                # started.  Do nothing in that case.
+                return
+            assert sys_monitoring is not None
+            sys_monitoring.set_events(self.myid, 0)
+            self.sysmon_on = False
+            sys_monitoring.free_tool_id(self.myid)
+
+        if LOG:  # pragma: debugging
+            items = sorted(
+                self.filename_code_ids.items(),
+                key=lambda item: len(item[1]),
+                reverse=True,
+            )
+            code_objs = sum(len(code_ids) for _, code_ids in items)
+            dupes = code_objs - len(items)
+            if dupes:
+                log(f"==== Duplicate code objects: {dupes} duplicates, {code_objs} total")
+                for filename, code_ids in items:
+                    if len(code_ids) > 1:
+                        log(f"{len(code_ids):>5} objects: {filename}")
+            else:
+                log("==== Duplicate code objects: none")
+
+    @panopticon()
+    def post_fork(self) -> None:
+        """The process has forked, clean up as needed."""
+        self.stop()
+
+    def activity(self) -> bool:
+        """Has there been any activity?"""
+        return self._activity
+
+    def reset_activity(self) -> None:
+        """Reset the activity() flag."""
+        self._activity = False
+
+    def get_stats(self) -> dict[str, int] | None:
+        """Return a dictionary of statistics, or None."""
+        return self.stats
+
+    @panopticon("code", "@")
+    def sysmon_py_start(self, code: CodeType, instruction_offset: TOffset) -> MonitorReturn:
+        """Handle sys.monitoring.events.PY_START events."""
+        self._activity = True
+        if self.stats is not None:
+            self.stats["starts"] += 1
+
+        if code.co_name == "__annotate__":
+            # Type annotation code objects don't execute, ignore them.
+            return DISABLE
+
+        # Entering a new frame.  Decide if we should trace in this file.
+        code_info = self.code_infos.get(id(code))
+        tracing_code: bool | None = None
+        file_data: TTraceFileData | None = None
+        if code_info is not None:
+            tracing_code = code_info.tracing
+            file_data = code_info.file_data
+
+        if tracing_code is None:
+            filename = code.co_filename
+            disp = self.should_trace_cache.get(filename)
+            if disp is None:
+                frame = inspect.currentframe()
+                if frame is not None:
+                    frame = inspect.currentframe().f_back  # type: ignore[union-attr]
+                    if LOG:  # pragma: debugging
+                        # @panopticon adds a frame.
+                        frame = frame.f_back  # type: ignore[union-attr]
+                disp = self.should_trace(filename, frame)  # type: ignore[arg-type]
+                self.should_trace_cache[filename] = disp
+
+            tracing_code = disp.trace
+            if tracing_code:
+                tracename = disp.source_filename
+                assert tracename is not None
+                self.lock_data()
+                try:
+                    if tracename not in self.data:
+                        self.data[tracename] = set()
+                finally:
+                    self.unlock_data()
+                file_data = self.data[tracename]
+                b2l = bytes_to_lines(code)
+            else:
+                file_data = None
+                b2l = None
+
+            code_info = CodeInfo(
+                tracing=tracing_code,
+                file_data=file_data,
+                byte_to_line=b2l,
+                branch_trails={},
+                always_jumps={},
+            )
+            self.code_infos[id(code)] = code_info
+            self.code_objects.append(code)
+
+            if tracing_code:
+                if self.stats is not None:
+                    self.stats["start_tracing"] += 1
+                events = sys.monitoring.events
+                with self.lock:
+                    if self.sysmon_on:
+                        assert sys_monitoring is not None
+                        local_events = events.PY_RETURN | events.PY_RESUME | events.LINE
+                        if self.trace_arcs:
+                            assert env.PYBEHAVIOR.branch_right_left
+                            local_events |= events.BRANCH_RIGHT | events.BRANCH_LEFT
+                        sys_monitoring.set_local_events(self.myid, code, local_events)
+
+                        if LOG:  # pragma: debugging
+                            if code.co_filename not in {"<string>"}:
+                                self.filename_code_ids[f"{code.co_filename}:{code.co_name}"].add(
+                                    id(code)
+                                )
+
+        return DISABLE
+
+    @panopticon("code", "@", None)
+    def sysmon_py_return(
+        self,
+        code: CodeType,
+        instruction_offset: TOffset,
+        retval: object,
+    ) -> MonitorReturn:
+        """Handle sys.monitoring.events.PY_RETURN events for branch coverage."""
+        if self.stats is not None:
+            self.stats["returns"] += 1
+        code_info = self.code_infos.get(id(code))
+        # code_info is not None and code_info.file_data is not None, since we
+        # wouldn't have enabled this event if they were.
+        last_line = code_info.byte_to_line.get(instruction_offset)  # type: ignore
+        if last_line is not None:
+            arc = (last_line, -code.co_firstlineno)
+            code_info.file_data.add(arc)  # type: ignore
+            # log(f"adding {arc=}")
+        return DISABLE
+
+    @panopticon("code", "line")
+    def sysmon_line_lines(self, code: CodeType, line_number: TLineNo) -> MonitorReturn:
+        """Handle sys.monitoring.events.LINE events for line coverage."""
+        if self.stats is not None:
+            self.stats["line_lines"] += 1
+        code_info = self.code_infos.get(id(code))
+        # It should be true that code_info is not None and code_info.file_data
+        # is not None, since we wouldn't have enabled this event if they were.
+        # But somehow code_info can be None here, so we have to check.
+        if code_info is not None and code_info.file_data is not None:
+            code_info.file_data.add(line_number)  # type: ignore
+        # log(f"adding {line_number=}")
+        return DISABLE
+
+    @panopticon("code", "line")
+    def sysmon_line_arcs(self, code: CodeType, line_number: TLineNo) -> MonitorReturn:
+        """Handle sys.monitoring.events.LINE events for branch coverage."""
+        if self.stats is not None:
+            self.stats["line_arcs"] += 1
+        code_info = self.code_infos[id(code)]
+        # code_info is not None and code_info.file_data is not None, since we
+        # wouldn't have enabled this event if they were.
+        arc = (line_number, line_number)
+        code_info.file_data.add(arc)  # type: ignore
+        # log(f"adding {arc=}")
+        return DISABLE
+
+    @panopticon("code", "@", "@")
+    def sysmon_branch_either(
+        self, code: CodeType, instruction_offset: TOffset, destination_offset: TOffset
+    ) -> MonitorReturn:
+        """Handle BRANCH_RIGHT and BRANCH_LEFT events."""
+        if self.stats is not None:
+            self.stats["branches"] += 1
+        code_info = self.code_infos[id(code)]
+        # code_info is not None and code_info.file_data is not None, since we
+        # wouldn't have enabled this event if they were.
+        if not code_info.branch_trails:
+            if self.stats is not None:
+                self.stats["branch_trails"] += 1
+            multiline_map = get_multiline_map(code.co_filename)
+            code_info.branch_trails = branch_trails(code, multiline_map=multiline_map)
+            code_info.always_jumps = always_jumps(code)
+            # log(f"branch_trails for {code}:\n{ppformat(code_info.branch_trails)}")
+        added_arc = False
+        dest_info = code_info.branch_trails.get(instruction_offset)
+
+        # Re-map the destination offset through always-jumps to deal with NOP etc.
+        dests = {destination_offset}
+        while (dest := code_info.always_jumps.get(destination_offset)) is not None:
+            destination_offset = dest
+            dests.add(destination_offset)
+
+        # log(f"dest_info = {ppformat(dest_info)}")
+        if dest_info is not None:
+            for arc, offsets in dest_info.items():
+                if arc is None:
+                    continue
+                if dests & offsets:
+                    code_info.file_data.add(arc)  # type: ignore
+                    # log(f"adding {arc=}")
+                    added_arc = True
+                    break
+
+        if not added_arc:
+            # This could be an exception jumping from line to line.
+            assert code_info.byte_to_line is not None
+            l1 = code_info.byte_to_line.get(instruction_offset)
+            if l1 is not None:
+                l2 = code_info.byte_to_line.get(destination_offset)
+                if l2 is not None and l1 != l2:
+                    arc = (l1, l2)
+                    code_info.file_data.add(arc)  # type: ignore
+                    # log(f"adding unforeseen {arc=}")
+
+        return DISABLE
+
+
+@functools.lru_cache(maxsize=20)
+def get_multiline_map(filename: str) -> dict[TLineNo, TLineNo]:
+    """Get a PythonParser for the given filename, cached."""
+    try:
+        parser = PythonParser(filename=filename)
+        parser.parse_source()
+    except NotPython:
+        # The file was not Python. This can happen when the code object refers
+        # to an original non-Python source file, like a Jinja template.
+        # In that case, just return an empty map, which might lead to slightly
+        # wrong branch coverage, but we don't have any better option.
+        return {}
+    except NoSource:
+        # This can happen if open() in python.py fails.
+        return {}
+    return parser.multiline_map

calculator/lib/python3.12/site-packages/coverage/templite.py

@@ -0,0 +1,319 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""A simple Python template renderer, for a nano-subset of Django syntax.
+
+For a detailed discussion of this code, see this chapter from 500 Lines:
+http://aosabook.org/en/500L/a-template-engine.html
+
+"""
+
+# Coincidentally named the same as http://code.activestate.com/recipes/496702/
+
+from __future__ import annotations
+
+import re
+from collections.abc import Callable
+from typing import Any, NoReturn, cast
+
+
+class TempliteSyntaxError(ValueError):
+    """Raised when a template has a syntax error."""
+
+    pass
+
+
+class TempliteValueError(ValueError):
+    """Raised when an expression won't evaluate in a template."""
+
+    pass
+
+
+class CodeBuilder:
+    """Build source code conveniently."""
+
+    def __init__(self, indent: int = 0) -> None:
+        self.code: list[str | CodeBuilder] = []
+        self.indent_level = indent
+
+    def __str__(self) -> str:
+        return "".join(str(c) for c in self.code)
+
+    def add_line(self, line: str) -> None:
+        """Add a line of source to the code.
+
+        Indentation and newline will be added for you, don't provide them.
+
+        """
+        self.code.extend([" " * self.indent_level, line, "\n"])
+
+    def add_section(self) -> CodeBuilder:
+        """Add a section, a sub-CodeBuilder."""
+        section = CodeBuilder(self.indent_level)
+        self.code.append(section)
+        return section
+
+    INDENT_STEP = 4  # PEP8 says so!
+
+    def indent(self) -> None:
+        """Increase the current indent for following lines."""
+        self.indent_level += self.INDENT_STEP
+
+    def dedent(self) -> None:
+        """Decrease the current indent for following lines."""
+        self.indent_level -= self.INDENT_STEP
+
+    def get_globals(self) -> dict[str, Any]:
+        """Execute the code, and return a dict of globals it defines."""
+        # A check that the caller really finished all the blocks they started.
+        assert self.indent_level == 0
+        # Get the Python source as a single string.
+        python_source = str(self)
+        # Execute the source, defining globals, and return them.
+        global_namespace: dict[str, Any] = {}
+        exec(python_source, global_namespace)
+        return global_namespace
+
+
+class Templite:
+    """A simple template renderer, for a nano-subset of Django syntax.
+
+    Supported constructs are extended variable access::
+
+        {{var.modifier.modifier|filter|filter}}
+
+    loops::
+
+        {% for var in list %}...{% endfor %}
+
+    and ifs::
+
+        {% if var %}...{% endif %}
+
+    if-else::
+
+        {% if var %}...{% else %}...{% endif %}
+
+    Comments are within curly-hash markers::
+
+        {# This will be ignored #}
+
+    Lines between `{% joined %}` and `{% endjoined %}` will have lines stripped
+    and joined.  Be careful, this could join words together!
+
+    Any of these constructs can have a hyphen at the end (`-}}`, `-%}`, `-#}`),
+    which will collapse the white space following the tag.
+
+    Construct a Templite with the template text, then use `render` against a
+    dictionary context to create a finished string::
+
+        templite = Templite('''
+            <h1>Hello {{name|upper}}!</h1>
+            {% for topic in topics %}
+                <p>You are interested in {{topic}}.</p>
+            {% endif %}
+            ''',
+            {"upper": str.upper},
+        )
+        text = templite.render({
+            "name": "Ned",
+            "topics": ["Python", "Geometry", "Juggling"],
+        })
+
+    """
+
+    def __init__(self, text: str, *contexts: dict[str, Any]) -> None:
+        """Construct a Templite with the given `text`.
+
+        `contexts` are dictionaries of values to use for future renderings.
+        These are good for filters and global values.
+
+        """
+        self.context = {}
+        for context in contexts:
+            self.context.update(context)
+
+        self.all_vars: set[str] = set()
+        self.loop_vars: set[str] = set()
+
+        # We construct a function in source form, then compile it and hold onto
+        # it, and execute it to render the template.
+        code = CodeBuilder()
+
+        code.add_line("def render_function(context, do_dots):")
+        code.indent()
+        vars_code = code.add_section()
+        code.add_line("result = []")
+        code.add_line("append_result = result.append")
+        code.add_line("extend_result = result.extend")
+        code.add_line("to_str = str")
+
+        buffered: list[str] = []
+
+        def flush_output() -> None:
+            """Force `buffered` to the code builder."""
+            if len(buffered) == 1:
+                code.add_line("append_result(%s)" % buffered[0])
+            elif len(buffered) > 1:
+                code.add_line("extend_result([%s])" % ", ".join(buffered))
+            del buffered[:]
+
+        ops_stack = []
+
+        # Split the text to form a list of tokens.
+        tokens = re.split(r"(?s)({{.*?}}|{%.*?%}|{#.*?#})", text)
+
+        squash = in_joined = False
+
+        for token in tokens:
+            if token.startswith("{"):
+                start, end = 2, -2
+                squash = (token[-3] == "-")  # fmt: skip
+                if squash:
+                    end = -3
+
+                if token.startswith("{#"):
+                    # Comment: ignore it and move on.
+                    continue
+                elif token.startswith("{{"):
+                    # An expression to evaluate.
+                    expr = self._expr_code(token[start:end].strip())
+                    buffered.append("to_str(%s)" % expr)
+                else:
+                    # token.startswith("{%")
+                    # Action tag: split into words and parse further.
+                    flush_output()
+
+                    words = token[start:end].strip().split()
+                    if words[0] == "if":
+                        # An if statement: evaluate the expression to determine if.
+                        if len(words) != 2:
+                            self._syntax_error("Don't understand if", token)
+                        ops_stack.append("if")
+                        code.add_line("if %s:" % self._expr_code(words[1]))
+                        code.indent()
+                    elif words[0] == "else":
+                        if len(words) != 1:
+                            self._syntax_error("Don't understand else", token)
+                        if not ops_stack or ops_stack[-1] != "if":
+                            self._syntax_error("Mismatched else", token)
+                        code.dedent()
+                        code.add_line("else:")
+                        code.indent()
+                    elif words[0] == "for":
+                        # A loop: iterate over expression result.
+                        if len(words) != 4 or words[2] != "in":
+                            self._syntax_error("Don't understand for", token)
+                        ops_stack.append("for")
+                        self._variable(words[1], self.loop_vars)
+                        code.add_line(
+                            f"for c_{words[1]} in {self._expr_code(words[3])}:",
+                        )
+                        code.indent()
+                    elif words[0] == "joined":
+                        ops_stack.append("joined")
+                        in_joined = True
+                    elif words[0].startswith("end"):
+                        # Endsomething.  Pop the ops stack.
+                        if len(words) != 1:
+                            self._syntax_error("Don't understand end", token)
+                        end_what = words[0][3:]
+                        if not ops_stack:
+                            self._syntax_error("Too many ends", token)
+                        start_what = ops_stack.pop()
+                        if start_what != end_what:
+                            self._syntax_error("Mismatched end tag", end_what)
+                        if end_what == "joined":
+                            in_joined = False
+                        else:
+                            code.dedent()
+                    else:
+                        self._syntax_error("Don't understand tag", words[0])
+            else:
+                # Literal content.  If it isn't empty, output it.
+                if in_joined:
+                    token = re.sub(r"\s*\n\s*", "", token.strip())
+                elif squash:
+                    token = token.lstrip()
+                if token:
+                    buffered.append(repr(token))
+
+        if ops_stack:
+            self._syntax_error("Unmatched action tag", ops_stack[-1])
+
+        flush_output()
+
+        for var_name in self.all_vars - self.loop_vars:
+            vars_code.add_line(f"c_{var_name} = context[{var_name!r}]")
+
+        code.add_line("return ''.join(result)")
+        code.dedent()
+        self._render_function = cast(
+            Callable[
+                [dict[str, Any], Callable[..., Any]],
+                str,
+            ],
+            code.get_globals()["render_function"],
+        )
+
+    def _expr_code(self, expr: str) -> str:
+        """Generate a Python expression for `expr`."""
+        if "|" in expr:
+            pipes = expr.split("|")
+            code = self._expr_code(pipes[0])
+            for func in pipes[1:]:
+                self._variable(func, self.all_vars)
+                code = f"c_{func}({code})"
+        elif "." in expr:
+            dots = expr.split(".")
+            code = self._expr_code(dots[0])
+            args = ", ".join(repr(d) for d in dots[1:])
+            code = f"do_dots({code}, {args})"
+        else:
+            self._variable(expr, self.all_vars)
+            code = "c_%s" % expr
+        return code
+
+    def _syntax_error(self, msg: str, thing: Any) -> NoReturn:
+        """Raise a syntax error using `msg`, and showing `thing`."""
+        raise TempliteSyntaxError(f"{msg}: {thing!r}")
+
+    def _variable(self, name: str, vars_set: set[str]) -> None:
+        """Track that `name` is used as a variable.
+
+        Adds the name to `vars_set`, a set of variable names.
+
+        Raises an syntax error if `name` is not a valid name.
+
+        """
+        if not re.match(r"[_a-zA-Z][_a-zA-Z0-9]*$", name):
+            self._syntax_error("Not a valid name", name)
+        vars_set.add(name)
+
+    def render(self, context: dict[str, Any] | None = None) -> str:
+        """Render this template by applying it to `context`.
+
+        `context` is a dictionary of values to use in this rendering.
+
+        """
+        # Make the complete context we'll use.
+        render_context = dict(self.context)
+        if context:
+            render_context.update(context)
+        return self._render_function(render_context, self._do_dots)
+
+    def _do_dots(self, value: Any, *dots: str) -> Any:
+        """Evaluate dotted expressions at run-time."""
+        for dot in dots:
+            try:
+                value = getattr(value, dot)
+            except AttributeError:
+                try:
+                    value = value[dot]
+                except (TypeError, KeyError) as exc:
+                    raise TempliteValueError(
+                        f"Couldn't evaluate {value!r}.{dot}",
+                    ) from exc
+            if callable(value):
+                value = value()
+        return value

calculator/lib/python3.12/site-packages/coverage/tomlconfig.py

@@ -0,0 +1,212 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""TOML configuration support for coverage.py"""
+
+from __future__ import annotations
+
+import os
+import re
+from collections.abc import Callable, Iterable
+from typing import Any, TypeVar
+
+from coverage import config, env
+from coverage.exceptions import ConfigError
+from coverage.misc import import_third_party, isolate_module, substitute_variables
+from coverage.types import TConfigSectionOut, TConfigValueOut
+
+os = isolate_module(os)
+
+if env.PYVERSION >= (3, 11, 0, "alpha", 7):
+    import tomllib  # pylint: disable=import-error
+
+    has_tomllib = True
+else:
+    # TOML support on Python 3.10 and below is an install-time extra option.
+    tomllib, has_tomllib = import_third_party("tomli")
+
+
+class TomlDecodeError(Exception):
+    """An exception class that exists even when toml isn't installed."""
+
+    pass
+
+
+TWant = TypeVar("TWant")
+
+
+class TomlConfigParser:
+    """TOML file reading with the interface of HandyConfigParser."""
+
+    # This class has the same interface as config.HandyConfigParser, no
+    # need for docstrings.
+    # pylint: disable=missing-function-docstring
+
+    def __init__(self, our_file: bool) -> None:
+        self.our_file = our_file
+        self.data: dict[str, Any] = {}
+
+    def read(self, filenames: Iterable[str]) -> list[str]:
+        # RawConfigParser takes a filename or list of filenames, but we only
+        # ever call this with a single filename.
+        assert isinstance(filenames, (bytes, str, os.PathLike))
+        filename = os.fspath(filenames)
+
+        try:
+            with open(filename, encoding="utf-8") as fp:
+                toml_text = fp.read()
+        except OSError:
+            return []
+        if has_tomllib:
+            try:
+                self.data = tomllib.loads(toml_text)
+            except tomllib.TOMLDecodeError as err:
+                raise TomlDecodeError(str(err)) from err
+            return [filename]
+        else:
+            has_toml = re.search(r"^\[tool\.coverage(\.|])", toml_text, flags=re.MULTILINE)
+            if self.our_file or has_toml:
+                # Looks like they meant to read TOML, but we can't read it.
+                msg = "Can't read {!r} without TOML support. Install with [toml] extra"
+                raise ConfigError(msg.format(filename))
+            return []
+
+    def _get_section(self, section: str) -> tuple[str | None, TConfigSectionOut | None]:
+        """Get a section from the data.
+
+        Arguments:
+            section (str): A section name, which can be dotted.
+
+        Returns:
+            name (str): the actual name of the section that was found, if any,
+                or None.
+            data (str): the dict of data in the section, or None if not found.
+
+        """
+        prefixes = ["tool.coverage."]
+        if self.our_file:
+            prefixes.append("")
+        for prefix in prefixes:
+            real_section = prefix + section
+            parts = real_section.split(".")
+            try:
+                data = self.data[parts[0]]
+                for part in parts[1:]:
+                    data = data[part]
+            except KeyError:
+                continue
+            break
+        else:
+            return None, None
+        return real_section, data
+
+    def _get(self, section: str, option: str) -> tuple[str, TConfigValueOut]:
+        """Like .get, but returns the real section name and the value."""
+        name, data = self._get_section(section)
+        if data is None:
+            raise ConfigError(f"No section: {section!r}")
+        assert name is not None
+        try:
+            value = data[option]
+        except KeyError:
+            raise ConfigError(f"No option {option!r} in section: {name!r}") from None
+        return name, value
+
+    def _get_single(self, section: str, option: str) -> Any:
+        """Get a single-valued option.
+
+        Performs environment substitution if the value is a string. Other types
+        will be converted later as needed.
+        """
+        name, value = self._get(section, option)
+        if isinstance(value, str):
+            value = substitute_variables(value, os.environ)
+        return name, value
+
+    def has_option(self, section: str, option: str) -> bool:
+        _, data = self._get_section(section)
+        if data is None:
+            return False
+        return option in data
+
+    def real_section(self, section: str) -> str | None:
+        name, _ = self._get_section(section)
+        return name
+
+    def has_section(self, section: str) -> bool:
+        name, _ = self._get_section(section)
+        return bool(name)
+
+    def options(self, section: str) -> list[str]:
+        _, data = self._get_section(section)
+        if data is None:
+            raise ConfigError(f"No section: {section!r}")
+        return list(data.keys())
+
+    def get_section(self, section: str) -> TConfigSectionOut:
+        _, data = self._get_section(section)
+        return data or {}
+
+    def get(self, section: str, option: str) -> Any:
+        _, value = self._get_single(section, option)
+        return value
+
+    def _check_type(
+        self,
+        section: str,
+        option: str,
+        value: Any,
+        type_: type[TWant],
+        converter: Callable[[Any], TWant] | None,
+        type_desc: str,
+    ) -> TWant:
+        """Check that `value` has the type we want, converting if needed.
+
+        Returns the resulting value of the desired type.
+        """
+        if isinstance(value, type_):
+            return value
+        if isinstance(value, str) and converter is not None:
+            try:
+                return converter(value)
+            except Exception as e:
+                raise ValueError(
+                    f"Option [{section}]{option} couldn't convert to {type_desc}: {value!r}",
+                ) from e
+        raise ValueError(
+            f"Option [{section}]{option} is not {type_desc}: {value!r}",
+        )
+
+    def getboolean(self, section: str, option: str) -> bool:
+        name, value = self._get_single(section, option)
+        bool_strings = {"true": True, "false": False}
+        return self._check_type(name, option, value, bool, bool_strings.__getitem__, "a boolean")
+
+    def getfile(self, section: str, option: str) -> str:
+        _, value = self._get_single(section, option)
+        return config.process_file_value(value)
+
+    def _get_list(self, section: str, option: str) -> tuple[str, list[str]]:
+        """Get a list of strings, substituting environment variables in the elements."""
+        name, values = self._get(section, option)
+        values = self._check_type(name, option, values, list, None, "a list")
+        values = [substitute_variables(value, os.environ) for value in values]
+        return name, values
+
+    def getlist(self, section: str, option: str) -> list[str]:
+        _, values = self._get_list(section, option)
+        return values
+
+    def getregexlist(self, section: str, option: str) -> list[str]:
+        name, values = self._get_list(section, option)
+        return config.process_regexlist(name, option, values)
+
+    def getint(self, section: str, option: str) -> int:
+        name, value = self._get_single(section, option)
+        return self._check_type(name, option, value, int, int, "an integer")
+
+    def getfloat(self, section: str, option: str) -> float:
+        name, value = self._get_single(section, option)
+        if isinstance(value, int):
+            value = float(value)
+        return self._check_type(name, option, value, float, float, "a float")

calculator/lib/python3.12/site-packages/coverage/tracer.pyi

@@ -0,0 +1,43 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""Typing information for the constructs from our .c files."""
+
+from typing import Any, Dict
+
+from coverage.types import TFileDisposition, TTraceData, TTraceFn, Tracer
+
+class CFileDisposition(TFileDisposition):
+    """CFileDisposition is in ctracer/filedisp.c"""
+
+    canonical_filename: Any
+    file_tracer: Any
+    has_dynamic_filename: Any
+    original_filename: Any
+    reason: Any
+    source_filename: Any
+    trace: Any
+    def __init__(self) -> None: ...
+
+class CTracer(Tracer):
+    """CTracer is in ctracer/tracer.c"""
+
+    check_include: Any
+    concur_id_func: Any
+    data: TTraceData
+    disable_plugin: Any
+    file_tracers: Any
+    should_start_context: Any
+    should_trace: Any
+    should_trace_cache: Any
+    switch_context: Any
+    lock_data: Any
+    unlock_data: Any
+    trace_arcs: Any
+    warn: Any
+    def __init__(self) -> None: ...
+    def activity(self) -> bool: ...
+    def get_stats(self) -> Dict[str, int]: ...
+    def reset_activity(self) -> Any: ...
+    def start(self) -> TTraceFn: ...
+    def stop(self) -> None: ...

calculator/lib/python3.12/site-packages/coverage/types.py

@@ -0,0 +1,197 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""
+Types for use throughout coverage.py.
+"""
+
+from __future__ import annotations
+
+import os
+import pathlib
+from collections.abc import Callable, Iterable, Mapping
+from types import FrameType, ModuleType
+from typing import TYPE_CHECKING, Any, Optional, Protocol
+
+if TYPE_CHECKING:
+    from coverage.plugin import FileTracer
+
+
+AnyCallable = Callable[..., Any]
+
+## File paths
+
+# For arguments that are file paths:
+FilePath = str | os.PathLike[str]
+# For testing FilePath arguments
+FilePathClasses = [str, pathlib.Path]
+FilePathType = type[str] | type[pathlib.Path]
+
+## Python tracing
+
+
+class TTraceFn(Protocol):
+    """A Python trace function."""
+
+    def __call__(
+        self,
+        frame: FrameType,
+        event: str,
+        arg: Any,
+        lineno: TLineNo | None = None,  # Our own twist, see collector.py
+    ) -> TTraceFn | None: ...
+
+
+## Coverage.py tracing
+
+# Line numbers are pervasive enough that they deserve their own type.
+TLineNo = int
+
+# Bytecode offsets are pervasive enough that they deserve their own type.
+TOffset = int
+
+TArc = tuple[TLineNo, TLineNo]
+
+
+class TFileDisposition(Protocol):
+    """A simple value type for recording what to do with a file."""
+
+    original_filename: str
+    canonical_filename: str
+    source_filename: str | None
+    trace: bool
+    reason: str
+    file_tracer: FileTracer | None
+    has_dynamic_filename: bool
+
+
+# When collecting data, we use a dictionary with a few possible shapes. The
+# keys are always file names.
+# - If measuring line coverage, the values are sets of line numbers.
+# - If measuring arcs in the Python tracer, the values are sets of arcs (pairs
+#   of line numbers).
+# - If measuring arcs in the C tracer, the values are sets of packed arcs (two
+#   line numbers combined into one integer).
+
+TTraceFileData = set[TLineNo] | set[TArc] | set[int]
+
+TTraceData = dict[str, TTraceFileData]
+
+# Functions passed into collectors.
+TShouldTraceFn = Callable[[str, FrameType], TFileDisposition]
+TCheckIncludeFn = Callable[[str, FrameType], bool]
+TShouldStartContextFn = Callable[[FrameType], str | None]
+
+
+class Tracer(Protocol):
+    """Anything that can report on Python execution."""
+
+    data: TTraceData
+    trace_arcs: bool
+    should_trace: TShouldTraceFn
+    should_trace_cache: Mapping[str, TFileDisposition | None]
+    should_start_context: TShouldStartContextFn | None
+    switch_context: Callable[[str | None], None] | None
+    lock_data: Callable[[], None]
+    unlock_data: Callable[[], None]
+    warn: TWarnFn
+
+    def __init__(self) -> None: ...
+
+    def start(self) -> TTraceFn | None:
+        """Start this tracer, return a trace function if based on sys.settrace."""
+
+    def stop(self) -> None:
+        """Stop this tracer."""
+
+    def activity(self) -> bool:
+        """Has there been any activity?"""
+
+    def reset_activity(self) -> None:
+        """Reset the activity() flag."""
+
+    def get_stats(self) -> dict[str, int] | None:
+        """Return a dictionary of statistics, or None."""
+
+
+## Coverage
+
+# Many places use kwargs as Coverage kwargs.
+TCovKwargs = Any
+
+
+## Configuration
+
+# One value read from a config file.
+TConfigValueIn = Optional[bool | int | float | str | Iterable[str] | Mapping[str, Iterable[str]]]
+TConfigValueOut = Optional[bool | int | float | str | list[str] | dict[str, list[str]]]
+# An entire config section, mapping option names to values.
+TConfigSectionIn = Mapping[str, TConfigValueIn]
+TConfigSectionOut = Mapping[str, TConfigValueOut]
+
+
+class TConfigurable(Protocol):
+    """Something that can proxy to the coverage configuration settings."""
+
+    def get_option(self, option_name: str) -> TConfigValueOut | None:
+        """Get an option from the configuration.
+
+        `option_name` is a colon-separated string indicating the section and
+        option name.  For example, the ``branch`` option in the ``[run]``
+        section of the config file would be indicated with `"run:branch"`.
+
+        Returns the value of the option.
+
+        """
+
+    def set_option(self, option_name: str, value: TConfigValueIn | TConfigSectionIn) -> None:
+        """Set an option in the configuration.
+
+        `option_name` is a colon-separated string indicating the section and
+        option name.  For example, the ``branch`` option in the ``[run]``
+        section of the config file would be indicated with `"run:branch"`.
+
+        `value` is the new value for the option.
+
+        """
+
+
+class TPluginConfig(Protocol):
+    """Something that can provide options to a plugin."""
+
+    def get_plugin_options(self, plugin: str) -> TConfigSectionOut:
+        """Get the options for a plugin."""
+
+
+## Parsing
+
+TMorf = ModuleType | str
+TMorfs = TMorf | Iterable[TMorf] | None
+
+TSourceTokenLines = Iterable[list[tuple[str, str]]]
+
+
+## Debugging
+
+
+class TWarnFn(Protocol):
+    """A callable warn() function."""
+
+    def __call__(self, msg: str, slug: str | None = None, once: bool = False) -> None: ...
+
+
+class TDebugCtl(Protocol):
+    """A DebugControl object, or something like it."""
+
+    def should(self, option: str) -> bool:
+        """Decide whether to output debug information in category `option`."""
+
+    def write(self, msg: str) -> None:
+        """Write a line of debug output."""
+
+
+class TWritable(Protocol):
+    """Anything that can be written to."""
+
+    def write(self, msg: str) -> None:
+        """Write a message."""

calculator/lib/python3.12/site-packages/coverage/version.py

@@ -0,0 +1,35 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""The version and URL for coverage.py"""
+# This file is exec'ed in setup.py, don't import anything!
+
+from __future__ import annotations
+
+# version_info: same semantics as sys.version_info.
+# _dev: the .devN suffix if any.
+version_info = (7, 14, 1, "final", 0)
+_dev = 0
+
+
+def _make_version(
+    major: int,
+    minor: int,
+    micro: int,
+    releaselevel: str = "final",
+    serial: int = 0,
+    dev: int = 0,
+) -> str:
+    """Create a readable version string from version_info tuple components."""
+    assert releaselevel in ["alpha", "beta", "candidate", "final"]
+    version = f"{major}.{minor}.{micro}"
+    if releaselevel != "final":
+        short = {"alpha": "a", "beta": "b", "candidate": "rc"}[releaselevel]
+        version += f"{short}{serial}"
+    if dev != 0:
+        version += f".dev{dev}"
+    return version
+
+
+__version__ = _make_version(*version_info, _dev)
+__url__ = f"https://coverage.readthedocs.io/en/{__version__}"

calculator/lib/python3.12/site-packages/coverage/xmlreport.py

@@ -0,0 +1,263 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/coveragepy/coveragepy/blob/main/NOTICE.txt
+
+"""XML reporting for coverage.py"""
+
+from __future__ import annotations
+
+import os
+import os.path
+import sys
+import time
+import xml.dom.minidom
+from dataclasses import dataclass
+from typing import IO, TYPE_CHECKING, Any
+
+from coverage import __version__, files
+from coverage.misc import human_sorted, human_sorted_items, isolate_module
+from coverage.plugin import FileReporter
+from coverage.report_core import get_analysis_to_report
+from coverage.results import Analysis
+from coverage.types import TMorfs
+from coverage.version import __url__
+
+if TYPE_CHECKING:
+    from coverage import Coverage
+
+os = isolate_module(os)
+
+
+DTD_URL = "https://raw.githubusercontent.com/cobertura/web/master/htdocs/xml/coverage-04.dtd"
+
+
+def rate(hit: int, num: int) -> str:
+    """Return the fraction of `hit`/`num`, as a string."""
+    if num == 0:
+        return "1"
+    else:
+        return f"{hit / num:.4g}"
+
+
+@dataclass
+class PackageData:
+    """Data we keep about each "package" (in Java terms)."""
+
+    elements: dict[str, xml.dom.minidom.Element]
+    hits: int
+    lines: int
+    br_hits: int
+    branches: int
+
+
+def appendChild(parent: Any, child: Any) -> None:
+    """Append a child to a parent, in a way mypy will shut up about."""
+    parent.appendChild(child)
+
+
+class XmlReporter:
+    """A reporter for writing Cobertura-style XML coverage results."""
+
+    report_type = "XML report"
+
+    def __init__(self, coverage: Coverage) -> None:
+        self.coverage = coverage
+        self.config = self.coverage.config
+
+        self.source_paths = set()
+        if self.config.source:
+            for src in self.config.source:
+                if os.path.exists(src):
+                    if self.config.relative_files:
+                        src = src.rstrip(r"\/")
+                    else:
+                        src = files.canonical_filename(src)
+                    self.source_paths.add(src)
+        self.packages: dict[str, PackageData] = {}
+        self.xml_out: xml.dom.minidom.Document
+
+    def report(self, morfs: TMorfs, outfile: IO[str] | None = None) -> float:
+        """Generate a Cobertura-compatible XML report for `morfs`.
+
+        `morfs` is a list of modules or file names.
+
+        `outfile` is a file object to write the XML to.
+
+        """
+        # Initial setup.
+        outfile = outfile or sys.stdout
+        has_arcs = self.coverage.get_data().has_arcs()
+
+        # Create the DOM that will store the data.
+        impl = xml.dom.minidom.getDOMImplementation()
+        assert impl is not None
+        self.xml_out = impl.createDocument(None, "coverage", None)
+
+        # Write header stuff.
+        xcoverage = self.xml_out.documentElement
+        assert xcoverage is not None
+        xcoverage.setAttribute("version", __version__)
+        xcoverage.setAttribute("timestamp", str(int(time.time() * 1000)))
+        xcoverage.appendChild(
+            self.xml_out.createComment(
+                f" Generated by coverage.py: {__url__} ",
+            )
+        )
+        xcoverage.appendChild(self.xml_out.createComment(f" Based on {DTD_URL} "))
+
+        # Call xml_file for each file in the data.
+        for fr, analysis in get_analysis_to_report(self.coverage, morfs):
+            self.xml_file(fr, analysis, has_arcs)
+
+        xsources = self.xml_out.createElement("sources")
+        xcoverage.appendChild(xsources)
+
+        # Populate the XML DOM with the source info.
+        for path in human_sorted(self.source_paths):
+            xsource = self.xml_out.createElement("source")
+            appendChild(xsources, xsource)
+            txt = self.xml_out.createTextNode(path)
+            appendChild(xsource, txt)
+
+        lnum_tot, lhits_tot = 0, 0
+        bnum_tot, bhits_tot = 0, 0
+
+        xpackages = self.xml_out.createElement("packages")
+        xcoverage.appendChild(xpackages)
+
+        # Populate the XML DOM with the package info.
+        for pkg_name, pkg_data in human_sorted_items(self.packages.items()):
+            xpackage = self.xml_out.createElement("package")
+            appendChild(xpackages, xpackage)
+            xclasses = self.xml_out.createElement("classes")
+            appendChild(xpackage, xclasses)
+            for _, class_elt in human_sorted_items(pkg_data.elements.items()):
+                appendChild(xclasses, class_elt)
+            xpackage.setAttribute("name", pkg_name.replace(os.sep, "."))
+            xpackage.setAttribute("line-rate", rate(pkg_data.hits, pkg_data.lines))
+            if has_arcs:
+                branch_rate = rate(pkg_data.br_hits, pkg_data.branches)
+            else:
+                branch_rate = "0"
+            xpackage.setAttribute("branch-rate", branch_rate)
+            xpackage.setAttribute("complexity", "0")
+
+            lhits_tot += pkg_data.hits
+            lnum_tot += pkg_data.lines
+            bhits_tot += pkg_data.br_hits
+            bnum_tot += pkg_data.branches
+
+        xcoverage.setAttribute("lines-valid", str(lnum_tot))
+        xcoverage.setAttribute("lines-covered", str(lhits_tot))
+        xcoverage.setAttribute("line-rate", rate(lhits_tot, lnum_tot))
+        if has_arcs:
+            xcoverage.setAttribute("branches-valid", str(bnum_tot))
+            xcoverage.setAttribute("branches-covered", str(bhits_tot))
+            xcoverage.setAttribute("branch-rate", rate(bhits_tot, bnum_tot))
+        else:
+            xcoverage.setAttribute("branches-covered", "0")
+            xcoverage.setAttribute("branches-valid", "0")
+            xcoverage.setAttribute("branch-rate", "0")
+        xcoverage.setAttribute("complexity", "0")
+
+        # Write the output file.
+        outfile.write(serialize_xml(self.xml_out))
+
+        # Return the total percentage.
+        denom = lnum_tot + bnum_tot
+        if denom == 0:
+            pct = 0.0
+        else:
+            pct = 100.0 * (lhits_tot + bhits_tot) / denom
+        return pct
+
+    def xml_file(self, fr: FileReporter, analysis: Analysis, has_arcs: bool) -> None:
+        """Add to the XML report for a single file."""
+
+        if self.config.skip_empty:
+            if analysis.numbers.n_statements == 0:
+                return
+
+        # Create the "lines" and "package" XML elements, which
+        # are populated later.  Note that a package == a directory.
+        filename = fr.filename.replace("\\", "/")
+        for source_path in self.source_paths:
+            if not self.config.relative_files:
+                source_path = files.canonical_filename(source_path)
+            if filename.startswith(source_path.replace("\\", "/") + "/"):
+                rel_name = filename[len(source_path) + 1 :]
+                break
+        else:
+            rel_name = fr.relative_filename().replace("\\", "/")
+            self.source_paths.add(fr.filename[: -len(rel_name)].rstrip(r"\/"))
+
+        dirname = os.path.dirname(rel_name) or "."
+        dirname = "/".join(dirname.split("/")[: self.config.xml_package_depth])
+        package_name = dirname.replace("/", ".")
+
+        package = self.packages.setdefault(package_name, PackageData({}, 0, 0, 0, 0))
+
+        xclass: xml.dom.minidom.Element = self.xml_out.createElement("class")
+
+        appendChild(xclass, self.xml_out.createElement("methods"))
+
+        xlines = self.xml_out.createElement("lines")
+        appendChild(xclass, xlines)
+
+        xclass.setAttribute("name", os.path.relpath(rel_name, dirname))
+        xclass.setAttribute("filename", rel_name.replace("\\", "/"))
+        xclass.setAttribute("complexity", "0")
+
+        branch_stats = analysis.branch_stats()
+        missing_branch_arcs = analysis.missing_branch_arcs()
+
+        # For each statement, create an XML "line" element.
+        for line in sorted(analysis.statements):
+            xline = self.xml_out.createElement("line")
+            xline.setAttribute("number", str(line))
+
+            # Q: can we get info about the number of times a statement is
+            # executed?  If so, that should be recorded here.
+            xline.setAttribute("hits", str(int(line not in analysis.missing)))
+
+            if has_arcs:
+                if line in branch_stats:
+                    total, taken = branch_stats[line]
+                    xline.setAttribute("branch", "true")
+                    xline.setAttribute(
+                        "condition-coverage",
+                        f"{100 * taken // total}% ({taken}/{total})",
+                    )
+                if line in missing_branch_arcs:
+                    annlines = ["exit" if b < 0 else str(b) for b in missing_branch_arcs[line]]
+                    xline.setAttribute("missing-branches", ",".join(annlines))
+            appendChild(xlines, xline)
+
+        class_lines = len(analysis.statements)
+        class_hits = class_lines - len(analysis.missing)
+
+        if has_arcs:
+            class_branches = sum(t for t, k in branch_stats.values())
+            missing_branches = sum(t - k for t, k in branch_stats.values())
+            class_br_hits = class_branches - missing_branches
+        else:
+            class_branches = 0
+            class_br_hits = 0
+
+        # Finalize the statistics that are collected in the XML DOM.
+        xclass.setAttribute("line-rate", rate(class_hits, class_lines))
+        if has_arcs:
+            branch_rate = rate(class_br_hits, class_branches)
+        else:
+            branch_rate = "0"
+        xclass.setAttribute("branch-rate", branch_rate)
+
+        package.elements[rel_name] = xclass
+        package.hits += class_hits
+        package.lines += class_lines
+        package.br_hits += class_br_hits
+        package.branches += class_branches
+
+
+def serialize_xml(dom: xml.dom.minidom.Document) -> str:
+    """Serialize a minidom node to XML."""
+    return dom.toprettyxml()