Library import 16 (#2433)

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8 files changed, 0 insertions, 992 deletions

diff --git a/contrib/tools/python3/src/Lib/importlib/resources/__init__.py b/contrib/tools/python3/src/Lib/importlib/resources/__init__.py
deleted file mode 100644
index 34e3a9950cc..00000000000
--- a/contrib/tools/python3/src/Lib/importlib/resources/__init__.py
+++ /dev/null
@@ -1,36 +0,0 @@
-"""Read resources contained within a package."""
-
-from ._common import (
-    as_file,
-    files,
-    Package,
-)
-
-from ._legacy import (
-    contents,
-    open_binary,
-    read_binary,
-    open_text,
-    read_text,
-    is_resource,
-    path,
-    Resource,
-)
-
-from .abc import ResourceReader
-
-
-__all__ = [
-    'Package',
-    'Resource',
-    'ResourceReader',
-    'as_file',
-    'contents',
-    'files',
-    'is_resource',
-    'open_binary',
-    'open_text',
-    'path',
-    'read_binary',
-    'read_text',
-]
diff --git a/contrib/tools/python3/src/Lib/importlib/resources/_adapters.py b/contrib/tools/python3/src/Lib/importlib/resources/_adapters.py
deleted file mode 100644
index 50688fbb666..00000000000
--- a/contrib/tools/python3/src/Lib/importlib/resources/_adapters.py
+++ /dev/null
@@ -1,168 +0,0 @@
-from contextlib import suppress
-from io import TextIOWrapper
-
-from . import abc
-
-
-class SpecLoaderAdapter:
-    """
-    Adapt a package spec to adapt the underlying loader.
-    """
-
-    def __init__(self, spec, adapter=lambda spec: spec.loader):
-        self.spec = spec
-        self.loader = adapter(spec)
-
-    def __getattr__(self, name):
-        return getattr(self.spec, name)
-
-
-class TraversableResourcesLoader:
-    """
-    Adapt a loader to provide TraversableResources.
-    """
-
-    def __init__(self, spec):
-        self.spec = spec
-
-    def get_resource_reader(self, name):
-        return CompatibilityFiles(self.spec)._native()
-
-
-def _io_wrapper(file, mode='r', *args, **kwargs):
-    if mode == 'r':
-        return TextIOWrapper(file, *args, **kwargs)
-    elif mode == 'rb':
-        return file
-    raise ValueError(f"Invalid mode value '{mode}', only 'r' and 'rb' are supported")
-
-
-class CompatibilityFiles:
-    """
-    Adapter for an existing or non-existent resource reader
-    to provide a compatibility .files().
-    """
-
-    class SpecPath(abc.Traversable):
-        """
-        Path tied to a module spec.
-        Can be read and exposes the resource reader children.
-        """
-
-        def __init__(self, spec, reader):
-            self._spec = spec
-            self._reader = reader
-
-        def iterdir(self):
-            if not self._reader:
-                return iter(())
-            return iter(
-                CompatibilityFiles.ChildPath(self._reader, path)
-                for path in self._reader.contents()
-            )
-
-        def is_file(self):
-            return False
-
-        is_dir = is_file
-
-        def joinpath(self, other):
-            if not self._reader:
-                return CompatibilityFiles.OrphanPath(other)
-            return CompatibilityFiles.ChildPath(self._reader, other)
-
-        @property
-        def name(self):
-            return self._spec.name
-
-        def open(self, mode='r', *args, **kwargs):
-            return _io_wrapper(self._reader.open_resource(None), mode, *args, **kwargs)
-
-    class ChildPath(abc.Traversable):
-        """
-        Path tied to a resource reader child.
-        Can be read but doesn't expose any meaningful children.
-        """
-
-        def __init__(self, reader, name):
-            self._reader = reader
-            self._name = name
-
-        def iterdir(self):
-            return iter(())
-
-        def is_file(self):
-            return self._reader.is_resource(self.name)
-
-        def is_dir(self):
-            return not self.is_file()
-
-        def joinpath(self, other):
-            return CompatibilityFiles.OrphanPath(self.name, other)
-
-        @property
-        def name(self):
-            return self._name
-
-        def open(self, mode='r', *args, **kwargs):
-            return _io_wrapper(
-                self._reader.open_resource(self.name), mode, *args, **kwargs
-            )
-
-    class OrphanPath(abc.Traversable):
-        """
-        Orphan path, not tied to a module spec or resource reader.
-        Can't be read and doesn't expose any meaningful children.
-        """
-
-        def __init__(self, *path_parts):
-            if len(path_parts) < 1:
-                raise ValueError('Need at least one path part to construct a path')
-            self._path = path_parts
-
-        def iterdir(self):
-            return iter(())
-
-        def is_file(self):
-            return False
-
-        is_dir = is_file
-
-        def joinpath(self, other):
-            return CompatibilityFiles.OrphanPath(*self._path, other)
-
-        @property
-        def name(self):
-            return self._path[-1]
-
-        def open(self, mode='r', *args, **kwargs):
-            raise FileNotFoundError("Can't open orphan path")
-
-    def __init__(self, spec):
-        self.spec = spec
-
-    @property
-    def _reader(self):
-        with suppress(AttributeError):
-            return self.spec.loader.get_resource_reader(self.spec.name)
-
-    def _native(self):
-        """
-        Return the native reader if it supports files().
-        """
-        reader = self._reader
-        return reader if hasattr(reader, 'files') else self
-
-    def __getattr__(self, attr):
-        return getattr(self._reader, attr)
-
-    def files(self):
-        return CompatibilityFiles.SpecPath(self.spec, self._reader)
-
-
-def wrap_spec(package):
-    """
-    Construct a package spec with traversable compatibility
-    on the spec/loader/reader.
-    """
-    return SpecLoaderAdapter(package.__spec__, TraversableResourcesLoader)
diff --git a/contrib/tools/python3/src/Lib/importlib/resources/_common.py b/contrib/tools/python3/src/Lib/importlib/resources/_common.py
deleted file mode 100644
index a3902535342..00000000000
--- a/contrib/tools/python3/src/Lib/importlib/resources/_common.py
+++ /dev/null
@@ -1,207 +0,0 @@
-import os
-import pathlib
-import tempfile
-import functools
-import contextlib
-import types
-import importlib
-import inspect
-import warnings
-import itertools
-
-from typing import Union, Optional, cast
-from .abc import ResourceReader, Traversable
-
-from ._adapters import wrap_spec
-
-Package = Union[types.ModuleType, str]
-Anchor = Package
-
-
-def package_to_anchor(func):
-    """
-    Replace 'package' parameter as 'anchor' and warn about the change.
-
-    Other errors should fall through.
-
-    >>> files('a', 'b')
-    Traceback (most recent call last):
-    TypeError: files() takes from 0 to 1 positional arguments but 2 were given
-    """
-    undefined = object()
-
-    @functools.wraps(func)
-    def wrapper(anchor=undefined, package=undefined):
-        if package is not undefined:
-            if anchor is not undefined:
-                return func(anchor, package)
-            warnings.warn(
-                "First parameter to files is renamed to 'anchor'",
-                DeprecationWarning,
-                stacklevel=2,
-            )
-            return func(package)
-        elif anchor is undefined:
-            return func()
-        return func(anchor)
-
-    return wrapper
-
-
-@package_to_anchor
-def files(anchor: Optional[Anchor] = None) -> Traversable:
-    """
-    Get a Traversable resource for an anchor.
-    """
-    return from_package(resolve(anchor))
-
-
-def get_resource_reader(package: types.ModuleType) -> Optional[ResourceReader]:
-    """
-    Return the package's loader if it's a ResourceReader.
-    """
-    # We can't use
-    # a issubclass() check here because apparently abc.'s __subclasscheck__()
-    # hook wants to create a weak reference to the object, but
-    # zipimport.zipimporter does not support weak references, resulting in a
-    # TypeError.  That seems terrible.
-    spec = package.__spec__
-    reader = getattr(spec.loader, 'get_resource_reader', None)  # type: ignore
-    if reader is None:
-        return None
-    return reader(spec.name)  # type: ignore
-
-
[email protected]
-def resolve(cand: Optional[Anchor]) -> types.ModuleType:
-    return cast(types.ModuleType, cand)
-
-
[email protected]
-def _(cand: str) -> types.ModuleType:
-    return importlib.import_module(cand)
-
-
[email protected]
-def _(cand: None) -> types.ModuleType:
-    return resolve(_infer_caller().f_globals['__name__'])
-
-
-def _infer_caller():
-    """
-    Walk the stack and find the frame of the first caller not in this module.
-    """
-
-    def is_this_file(frame_info):
-        return frame_info.filename == __file__
-
-    def is_wrapper(frame_info):
-        return frame_info.function == 'wrapper'
-
-    not_this_file = itertools.filterfalse(is_this_file, inspect.stack())
-    # also exclude 'wrapper' due to singledispatch in the call stack
-    callers = itertools.filterfalse(is_wrapper, not_this_file)
-    return next(callers).frame
-
-
-def from_package(package: types.ModuleType):
-    """
-    Return a Traversable object for the given package.
-
-    """
-    spec = wrap_spec(package)
-    reader = spec.loader.get_resource_reader(spec.name)
-    return reader.files()
-
-
[email protected]
-def _tempfile(
-    reader,
-    suffix='',
-    # gh-93353: Keep a reference to call os.remove() in late Python
-    # finalization.
-    *,
-    _os_remove=os.remove,
-):
-    # Not using tempfile.NamedTemporaryFile as it leads to deeper 'try'
-    # blocks due to the need to close the temporary file to work on Windows
-    # properly.
-    fd, raw_path = tempfile.mkstemp(suffix=suffix)
-    try:
-        try:
-            os.write(fd, reader())
-        finally:
-            os.close(fd)
-        del reader
-        yield pathlib.Path(raw_path)
-    finally:
-        try:
-            _os_remove(raw_path)
-        except FileNotFoundError:
-            pass
-
-
-def _temp_file(path):
-    return _tempfile(path.read_bytes, suffix=path.name)
-
-
-def _is_present_dir(path: Traversable) -> bool:
-    """
-    Some Traversables implement ``is_dir()`` to raise an
-    exception (i.e. ``FileNotFoundError``) when the
-    directory doesn't exist. This function wraps that call
-    to always return a boolean and only return True
-    if there's a dir and it exists.
-    """
-    with contextlib.suppress(FileNotFoundError):
-        return path.is_dir()
-    return False
-
-
[email protected]
-def as_file(path):
-    """
-    Given a Traversable object, return that object as a
-    path on the local file system in a context manager.
-    """
-    return _temp_dir(path) if _is_present_dir(path) else _temp_file(path)
-
-
-@as_file.register(pathlib.Path)
[email protected]
-def _(path):
-    """
-    Degenerate behavior for pathlib.Path objects.
-    """
-    yield path
-
-
[email protected]
-def _temp_path(dir: tempfile.TemporaryDirectory):
-    """
-    Wrap tempfile.TemporyDirectory to return a pathlib object.
-    """
-    with dir as result:
-        yield pathlib.Path(result)
-
-
[email protected]
-def _temp_dir(path):
-    """
-    Given a traversable dir, recursively replicate the whole tree
-    to the file system in a context manager.
-    """
-    assert path.is_dir()
-    with _temp_path(tempfile.TemporaryDirectory()) as temp_dir:
-        yield _write_contents(temp_dir, path)
-
-
-def _write_contents(target, source):
-    child = target.joinpath(source.name)
-    if source.is_dir():
-        child.mkdir()
-        for item in source.iterdir():
-            _write_contents(child, item)
-    else:
-        child.write_bytes(source.read_bytes())
-    return child
diff --git a/contrib/tools/python3/src/Lib/importlib/resources/_itertools.py b/contrib/tools/python3/src/Lib/importlib/resources/_itertools.py
deleted file mode 100644
index 7b775ef5ae8..00000000000
--- a/contrib/tools/python3/src/Lib/importlib/resources/_itertools.py
+++ /dev/null
@@ -1,38 +0,0 @@
-# from more_itertools 9.0
-def only(iterable, default=None, too_long=None):
-    """If *iterable* has only one item, return it.
-    If it has zero items, return *default*.
-    If it has more than one item, raise the exception given by *too_long*,
-    which is ``ValueError`` by default.
-    >>> only([], default='missing')
-    'missing'
-    >>> only([1])
-    1
-    >>> only([1, 2])  # doctest: +IGNORE_EXCEPTION_DETAIL
-    Traceback (most recent call last):
-    ...
-    ValueError: Expected exactly one item in iterable, but got 1, 2,
-     and perhaps more.'
-    >>> only([1, 2], too_long=TypeError)  # doctest: +IGNORE_EXCEPTION_DETAIL
-    Traceback (most recent call last):
-    ...
-    TypeError
-    Note that :func:`only` attempts to advance *iterable* twice to ensure there
-    is only one item.  See :func:`spy` or :func:`peekable` to check
-    iterable contents less destructively.
-    """
-    it = iter(iterable)
-    first_value = next(it, default)
-
-    try:
-        second_value = next(it)
-    except StopIteration:
-        pass
-    else:
-        msg = (
-            'Expected exactly one item in iterable, but got {!r}, {!r}, '
-            'and perhaps more.'.format(first_value, second_value)
-        )
-        raise too_long or ValueError(msg)
-
-    return first_value
diff --git a/contrib/tools/python3/src/Lib/importlib/resources/_legacy.py b/contrib/tools/python3/src/Lib/importlib/resources/_legacy.py
deleted file mode 100644
index b1ea8105dad..00000000000
--- a/contrib/tools/python3/src/Lib/importlib/resources/_legacy.py
+++ /dev/null
@@ -1,120 +0,0 @@
-import functools
-import os
-import pathlib
-import types
-import warnings
-
-from typing import Union, Iterable, ContextManager, BinaryIO, TextIO, Any
-
-from . import _common
-
-Package = Union[types.ModuleType, str]
-Resource = str
-
-
-def deprecated(func):
-    @functools.wraps(func)
-    def wrapper(*args, **kwargs):
-        warnings.warn(
-            f"{func.__name__} is deprecated. Use files() instead. "
-            "Refer to https://importlib-resources.readthedocs.io"
-            "/en/latest/using.html#migrating-from-legacy for migration advice.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return func(*args, **kwargs)
-
-    return wrapper
-
-
-def normalize_path(path: Any) -> str:
-    """Normalize a path by ensuring it is a string.
-
-    If the resulting string contains path separators, an exception is raised.
-    """
-    str_path = str(path)
-    parent, file_name = os.path.split(str_path)
-    if parent:
-        raise ValueError(f'{path!r} must be only a file name')
-    return file_name
-
-
-@deprecated
-def open_binary(package: Package, resource: Resource) -> BinaryIO:
-    """Return a file-like object opened for binary reading of the resource."""
-    return (_common.files(package) / normalize_path(resource)).open('rb')
-
-
-@deprecated
-def read_binary(package: Package, resource: Resource) -> bytes:
-    """Return the binary contents of the resource."""
-    return (_common.files(package) / normalize_path(resource)).read_bytes()
-
-
-@deprecated
-def open_text(
-    package: Package,
-    resource: Resource,
-    encoding: str = 'utf-8',
-    errors: str = 'strict',
-) -> TextIO:
-    """Return a file-like object opened for text reading of the resource."""
-    return (_common.files(package) / normalize_path(resource)).open(
-        'r', encoding=encoding, errors=errors
-    )
-
-
-@deprecated
-def read_text(
-    package: Package,
-    resource: Resource,
-    encoding: str = 'utf-8',
-    errors: str = 'strict',
-) -> str:
-    """Return the decoded string of the resource.
-
-    The decoding-related arguments have the same semantics as those of
-    bytes.decode().
-    """
-    with open_text(package, resource, encoding, errors) as fp:
-        return fp.read()
-
-
-@deprecated
-def contents(package: Package) -> Iterable[str]:
-    """Return an iterable of entries in `package`.
-
-    Note that not all entries are resources.  Specifically, directories are
-    not considered resources.  Use `is_resource()` on each entry returned here
-    to check if it is a resource or not.
-    """
-    return [path.name for path in _common.files(package).iterdir()]
-
-
-@deprecated
-def is_resource(package: Package, name: str) -> bool:
-    """True if `name` is a resource inside `package`.
-
-    Directories are *not* resources.
-    """
-    resource = normalize_path(name)
-    return any(
-        traversable.name == resource and traversable.is_file()
-        for traversable in _common.files(package).iterdir()
-    )
-
-
-@deprecated
-def path(
-    package: Package,
-    resource: Resource,
-) -> ContextManager[pathlib.Path]:
-    """A context manager providing a file path object to the resource.
-
-    If the resource does not already exist on its own on the file system,
-    a temporary file will be created. If the file was created, the file
-    will be deleted upon exiting the context manager (no exception is
-    raised if the file was deleted prior to the context manager
-    exiting).
-    """
-    return _common.as_file(_common.files(package) / normalize_path(resource))
diff --git a/contrib/tools/python3/src/Lib/importlib/resources/abc.py b/contrib/tools/python3/src/Lib/importlib/resources/abc.py
deleted file mode 100644
index 6750a7aaf14..00000000000
--- a/contrib/tools/python3/src/Lib/importlib/resources/abc.py
+++ /dev/null
@@ -1,173 +0,0 @@
-import abc
-import io
-import itertools
-import os
-import pathlib
-from typing import Any, BinaryIO, Iterable, Iterator, NoReturn, Text, Optional
-from typing import runtime_checkable, Protocol
-from typing import Union
-
-
-StrPath = Union[str, os.PathLike[str]]
-
-__all__ = ["ResourceReader", "Traversable", "TraversableResources"]
-
-
-class ResourceReader(metaclass=abc.ABCMeta):
-    """Abstract base class for loaders to provide resource reading support."""
-
-    @abc.abstractmethod
-    def open_resource(self, resource: Text) -> BinaryIO:
-        """Return an opened, file-like object for binary reading.
-
-        The 'resource' argument is expected to represent only a file name.
-        If the resource cannot be found, FileNotFoundError is raised.
-        """
-        # This deliberately raises FileNotFoundError instead of
-        # NotImplementedError so that if this method is accidentally called,
-        # it'll still do the right thing.
-        raise FileNotFoundError
-
-    @abc.abstractmethod
-    def resource_path(self, resource: Text) -> Text:
-        """Return the file system path to the specified resource.
-
-        The 'resource' argument is expected to represent only a file name.
-        If the resource does not exist on the file system, raise
-        FileNotFoundError.
-        """
-        # This deliberately raises FileNotFoundError instead of
-        # NotImplementedError so that if this method is accidentally called,
-        # it'll still do the right thing.
-        raise FileNotFoundError
-
-    @abc.abstractmethod
-    def is_resource(self, path: Text) -> bool:
-        """Return True if the named 'path' is a resource.
-
-        Files are resources, directories are not.
-        """
-        raise FileNotFoundError
-
-    @abc.abstractmethod
-    def contents(self) -> Iterable[str]:
-        """Return an iterable of entries in `package`."""
-        raise FileNotFoundError
-
-
-class TraversalError(Exception):
-    pass
-
-
-@runtime_checkable
-class Traversable(Protocol):
-    """
-    An object with a subset of pathlib.Path methods suitable for
-    traversing directories and opening files.
-
-    Any exceptions that occur when accessing the backing resource
-    may propagate unaltered.
-    """
-
-    @abc.abstractmethod
-    def iterdir(self) -> Iterator["Traversable"]:
-        """
-        Yield Traversable objects in self
-        """
-
-    def read_bytes(self) -> bytes:
-        """
-        Read contents of self as bytes
-        """
-        with self.open('rb') as strm:
-            return strm.read()
-
-    def read_text(self, encoding: Optional[str] = None) -> str:
-        """
-        Read contents of self as text
-        """
-        with self.open(encoding=encoding) as strm:
-            return strm.read()
-
-    @abc.abstractmethod
-    def is_dir(self) -> bool:
-        """
-        Return True if self is a directory
-        """
-
-    @abc.abstractmethod
-    def is_file(self) -> bool:
-        """
-        Return True if self is a file
-        """
-
-    def joinpath(self, *descendants: StrPath) -> "Traversable":
-        """
-        Return Traversable resolved with any descendants applied.
-
-        Each descendant should be a path segment relative to self
-        and each may contain multiple levels separated by
-        ``posixpath.sep`` (``/``).
-        """
-        if not descendants:
-            return self
-        names = itertools.chain.from_iterable(
-            path.parts for path in map(pathlib.PurePosixPath, descendants)
-        )
-        target = next(names)
-        matches = (
-            traversable for traversable in self.iterdir() if traversable.name == target
-        )
-        try:
-            match = next(matches)
-        except StopIteration:
-            raise TraversalError(
-                "Target not found during traversal.", target, list(names)
-            )
-        return match.joinpath(*names)
-
-    def __truediv__(self, child: StrPath) -> "Traversable":
-        """
-        Return Traversable child in self
-        """
-        return self.joinpath(child)
-
-    @abc.abstractmethod
-    def open(self, mode='r', *args, **kwargs):
-        """
-        mode may be 'r' or 'rb' to open as text or binary. Return a handle
-        suitable for reading (same as pathlib.Path.open).
-
-        When opening as text, accepts encoding parameters such as those
-        accepted by io.TextIOWrapper.
-        """
-
-    @property
-    @abc.abstractmethod
-    def name(self) -> str:
-        """
-        The base name of this object without any parent references.
-        """
-
-
-class TraversableResources(ResourceReader):
-    """
-    The required interface for providing traversable
-    resources.
-    """
-
-    @abc.abstractmethod
-    def files(self) -> "Traversable":
-        """Return a Traversable object for the loaded package."""
-
-    def open_resource(self, resource: StrPath) -> io.BufferedReader:
-        return self.files().joinpath(resource).open('rb')
-
-    def resource_path(self, resource: Any) -> NoReturn:
-        raise FileNotFoundError(resource)
-
-    def is_resource(self, path: StrPath) -> bool:
-        return self.files().joinpath(path).is_file()
-
-    def contents(self) -> Iterator[str]:
-        return (item.name for item in self.files().iterdir())
diff --git a/contrib/tools/python3/src/Lib/importlib/resources/readers.py b/contrib/tools/python3/src/Lib/importlib/resources/readers.py
deleted file mode 100644
index c3cdf769cbe..00000000000
--- a/contrib/tools/python3/src/Lib/importlib/resources/readers.py
+++ /dev/null
@@ -1,144 +0,0 @@
-import collections
-import itertools
-import pathlib
-import operator
-import zipfile
-
-from . import abc
-
-from ._itertools import only
-
-
-def remove_duplicates(items):
-    return iter(collections.OrderedDict.fromkeys(items))
-
-
-class FileReader(abc.TraversableResources):
-    def __init__(self, loader):
-        self.path = pathlib.Path(loader.path).parent
-
-    def resource_path(self, resource):
-        """
-        Return the file system path to prevent
-        `resources.path()` from creating a temporary
-        copy.
-        """
-        return str(self.path.joinpath(resource))
-
-    def files(self):
-        return self.path
-
-
-class ZipReader(abc.TraversableResources):
-    def __init__(self, loader, module):
-        _, _, name = module.rpartition('.')
-        self.prefix = loader.prefix.replace('\\', '/') + name + '/'
-        self.archive = loader.archive
-
-    def open_resource(self, resource):
-        try:
-            return super().open_resource(resource)
-        except KeyError as exc:
-            raise FileNotFoundError(exc.args[0])
-
-    def is_resource(self, path):
-        """
-        Workaround for `zipfile.Path.is_file` returning true
-        for non-existent paths.
-        """
-        target = self.files().joinpath(path)
-        return target.is_file() and target.exists()
-
-    def files(self):
-        return zipfile.Path(self.archive, self.prefix)
-
-
-class MultiplexedPath(abc.Traversable):
-    """
-    Given a series of Traversable objects, implement a merged
-    version of the interface across all objects. Useful for
-    namespace packages which may be multihomed at a single
-    name.
-    """
-
-    def __init__(self, *paths):
-        self._paths = list(map(pathlib.Path, remove_duplicates(paths)))
-        if not self._paths:
-            message = 'MultiplexedPath must contain at least one path'
-            raise FileNotFoundError(message)
-        if not all(path.is_dir() for path in self._paths):
-            raise NotADirectoryError('MultiplexedPath only supports directories')
-
-    def iterdir(self):
-        children = (child for path in self._paths for child in path.iterdir())
-        by_name = operator.attrgetter('name')
-        groups = itertools.groupby(sorted(children, key=by_name), key=by_name)
-        return map(self._follow, (locs for name, locs in groups))
-
-    def read_bytes(self):
-        raise FileNotFoundError(f'{self} is not a file')
-
-    def read_text(self, *args, **kwargs):
-        raise FileNotFoundError(f'{self} is not a file')
-
-    def is_dir(self):
-        return True
-
-    def is_file(self):
-        return False
-
-    def joinpath(self, *descendants):
-        try:
-            return super().joinpath(*descendants)
-        except abc.TraversalError:
-            # One of the paths did not resolve (a directory does not exist).
-            # Just return something that will not exist.
-            return self._paths[0].joinpath(*descendants)
-
-    @classmethod
-    def _follow(cls, children):
-        """
-        Construct a MultiplexedPath if needed.
-
-        If children contains a sole element, return it.
-        Otherwise, return a MultiplexedPath of the items.
-        Unless one of the items is not a Directory, then return the first.
-        """
-        subdirs, one_dir, one_file = itertools.tee(children, 3)
-
-        try:
-            return only(one_dir)
-        except ValueError:
-            try:
-                return cls(*subdirs)
-            except NotADirectoryError:
-                return next(one_file)
-
-    def open(self, *args, **kwargs):
-        raise FileNotFoundError(f'{self} is not a file')
-
-    @property
-    def name(self):
-        return self._paths[0].name
-
-    def __repr__(self):
-        paths = ', '.join(f"'{path}'" for path in self._paths)
-        return f'MultiplexedPath({paths})'
-
-
-class NamespaceReader(abc.TraversableResources):
-    def __init__(self, namespace_path):
-        if 'NamespacePath' not in str(namespace_path):
-            raise ValueError('Invalid path')
-        self.path = MultiplexedPath(*list(namespace_path))
-
-    def resource_path(self, resource):
-        """
-        Return the file system path to prevent
-        `resources.path()` from creating a temporary
-        copy.
-        """
-        return str(self.path.joinpath(resource))
-
-    def files(self):
-        return self.path
diff --git a/contrib/tools/python3/src/Lib/importlib/resources/simple.py b/contrib/tools/python3/src/Lib/importlib/resources/simple.py
deleted file mode 100644
index 7770c922c84..00000000000
--- a/contrib/tools/python3/src/Lib/importlib/resources/simple.py
+++ /dev/null
@@ -1,106 +0,0 @@
-"""
-Interface adapters for low-level readers.
-"""
-
-import abc
-import io
-import itertools
-from typing import BinaryIO, List
-
-from .abc import Traversable, TraversableResources
-
-
-class SimpleReader(abc.ABC):
-    """
-    The minimum, low-level interface required from a resource
-    provider.
-    """
-
-    @property
-    @abc.abstractmethod
-    def package(self) -> str:
-        """
-        The name of the package for which this reader loads resources.
-        """
-
-    @abc.abstractmethod
-    def children(self) -> List['SimpleReader']:
-        """
-        Obtain an iterable of SimpleReader for available
-        child containers (e.g. directories).
-        """
-
-    @abc.abstractmethod
-    def resources(self) -> List[str]:
-        """
-        Obtain available named resources for this virtual package.
-        """
-
-    @abc.abstractmethod
-    def open_binary(self, resource: str) -> BinaryIO:
-        """
-        Obtain a File-like for a named resource.
-        """
-
-    @property
-    def name(self):
-        return self.package.split('.')[-1]
-
-
-class ResourceContainer(Traversable):
-    """
-    Traversable container for a package's resources via its reader.
-    """
-
-    def __init__(self, reader: SimpleReader):
-        self.reader = reader
-
-    def is_dir(self):
-        return True
-
-    def is_file(self):
-        return False
-
-    def iterdir(self):
-        files = (ResourceHandle(self, name) for name in self.reader.resources)
-        dirs = map(ResourceContainer, self.reader.children())
-        return itertools.chain(files, dirs)
-
-    def open(self, *args, **kwargs):
-        raise IsADirectoryError()
-
-
-class ResourceHandle(Traversable):
-    """
-    Handle to a named resource in a ResourceReader.
-    """
-
-    def __init__(self, parent: ResourceContainer, name: str):
-        self.parent = parent
-        self.name = name  # type: ignore
-
-    def is_file(self):
-        return True
-
-    def is_dir(self):
-        return False
-
-    def open(self, mode='r', *args, **kwargs):
-        stream = self.parent.reader.open_binary(self.name)
-        if 'b' not in mode:
-            stream = io.TextIOWrapper(*args, **kwargs)
-        return stream
-
-    def joinpath(self, name):
-        raise RuntimeError("Cannot traverse into a resource")
-
-
-class TraversableReader(TraversableResources, SimpleReader):
-    """
-    A TraversableResources based on SimpleReader. Resource providers
-    may derive from this class to provide the TraversableResources
-    interface by supplying the SimpleReader interface.
-    """
-
-    def files(self):
-        return ResourceContainer(self)