chore(deps): update dependency typing-extensions to v4.12.2

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This PR contains the following updates:

Package	Update	Change
typing-extensions (changelog)	minor	==4.4.0 -> ==4.12.2

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Release Notes

python/typing_extensions (typing-extensions)

v4.12.2

Compare Source

• Fix regression in v4.12.0 where specialization of certain
  generics with an overridden __eq__ method would raise errors.
  Patch by Jelle Zijlstra.
• Fix tests so they pass on 3.13.0b2

v4.12.1

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• Preliminary changes for compatibility with the draft implementation
  of PEP 649 in Python 3.14. Patch by Jelle Zijlstra.
• Fix regression in v4.12.0 where nested Annotated types would cause
  TypeError to be raised if the nested Annotated type had unhashable
  metadata. Patch by Alex Waygood.

v4.12.0

Compare Source

This release is mostly the same as 4.12.0rc1 but fixes one more
longstanding bug.

• Fix incorrect behaviour of typing_extensions.ParamSpec on Python 3.8 and
  3.9 that meant that
  isinstance(typing_extensions.ParamSpec("P"), typing.TypeVar) would have a
  different result in some situations depending on whether or not a profiling
  function had been set using sys.setprofile. Patch by Alex Waygood.

v4.11.0

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This feature release provides improvements to various recently
added features, most importantly type parameter defaults (PEP 696).

There are no changes since 4.11.0rc1.

v4.10.0

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This feature release adds support for PEP 728 (TypedDict with extra
items) and PEP 742 (TypeIs).

There are no changes since 4.10.0rc1.

v4.9.0

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This feature release adds typing_extensions.ReadOnly, as specified
by PEP 705, and makes various other improvements, especially to
@typing_extensions.deprecated().

There are no changes since 4.9.0rc1.

v4.8.0

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No changes since 4.8.0rc1.

v4.7.1

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• Fix support for TypedDict, NamedTuple and is_protocol on PyPy-3.7 and
  PyPy-3.8. Patch by Alex Waygood. Note that PyPy-3.7 and PyPy-3.8 are unsupported
  by the PyPy project. The next feature release of typing-extensions will
  drop support for PyPy-3.7 and may also drop support for PyPy-3.8.

v4.7.0

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• This is expected to be the last feature release supporting Python 3.7,
  which reaches its end of life on June 27, 2023. Version 4.8.0 will support
  only Python 3.8.0 and up.
• Fix bug where a typing_extensions.Protocol class that had one or more
  non-callable members would raise TypeError when issubclass()
  was called against it, even if it defined a custom __subclasshook__
  method. The correct behaviour -- which has now been restored -- is not to
  raise TypeError in these situations if a custom __subclasshook__ method
  is defined. Patch by Alex Waygood (backporthttps://github.com/python/cpython/pull/105976l/105976).

v4.6.3

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• Fix a regression introduced in v4.6.0 in the implementation of
  runtime-checkable protocols. The regression meant
  that doing class Foo(X, typing_extensions.Protocol), where X was a class that
  had abc.ABCMeta as its metaclass, would then cause subsequent
  isinstance(1, X) calls to erroneously raise TypeError. Patch by
  Alex Waygood (backporting the CPythonhttps://github.com/python/cpython/pull/105152l/105152).
• Sync the repository's LICENSE file with that of CPython.
  typing_extensions is distributed under the same license as
  CPython itself.
• Skip a problematic test on Python 3.12.0b1. The test fails on 3.12.0b1 due to
  a bug in CPython, which will be fixed in 3.12.0b2. The
  typing_extensions test suite now passes on 3.12.0b1.

v4.6.2

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• Fix use of @deprecated on classes with __new__ but no __init__.
  Patch by Jelle Zijlstra.
• Fix regression in version 4.6.1 where comparing a generic class against a
  runtime-checkable protocol using isinstance() would cause AttributeError
  to be raised if using Python 3.7.

v4.6.1

Compare Source

• Change deprecated @runtime to formal API @runtime_checkable in the error
  message. Patch by Xuehai Pan.
• Fix regression in 4.6.0 where attempting to define a Protocol that was
  generic over a ParamSpec or a TypeVarTuple would cause TypeError to be
  raised. Patch by Alex Waygood.

v4.6.0

Compare Source

• typing_extensions is now documented at
  https://typing-extensions.readthedocs.io/en/latest/. Patch by Jelle Zijlstra.

• Add typing_extensions.Buffer, a marker class for buffer types, as proposed
  by PEP 688. Equivalent to collections.abc.Buffer in Python 3.12. Patch by
  Jelle Zijlstra.

• Backport two CPython PRs fixing various issues with typing.Literal:
  https://github.com/python/cpython/pull/232943294 https://github.com/python/cpython/pull/23383ll/23383. Both CPython PRs were
  originally by Yurii Karabas, and both were backported to Python >=3.9.1, but
  no earlier. Patch by Alex Waygood.

  A side effect of one of the changes is that equality comparisons of Literal
  objects will now raise a TypeError if one of the Literal objects being
  compared has a mutable parameter. (Using mutable parameters with Literal is
  not supported by PEP 586 or by any major static type checkers.)

• Literal is now reimplemented on all Python versions <= 3.10.0. The
  typing_extensions version does not suffer from the bug that was fixed in
  https://github.com/python/cpython/pull/293349334. (The CPython bugfix was
  backported to CPython 3.10.1 and 3.9.8, but no earlier.)

• Backport CPython PR 26067
  (originally by Yurii Karabas), ensuring that isinstance() calls on
  protocols raise TypeError when the protocol is not decorated with
  @runtime_checkable. Patch by Alex Waygood.

• Backport several significant performance improvements to runtime-checkable
  protocols that have been made in Python 3.12 (https://github.com/python/cpython/issues/74690es/74690 for details). Patch by Alex
  Waygood.

  A side effect of one of the performance improvements is that the members of
  a runtime-checkable protocol are now considered “frozen” at runtime as soon
  as the class has been created. Monkey-patching attributes onto a
  runtime-checkable protocol will still work, but will have no impact on
  isinstance() checks comparing objects to the protocol. See
  "What's New in Python 3.12"
  for more details.

• isinstance() checks against runtime-checkable protocols now use
  inspect.getattr_static() rather than hasattr() to lookup whether
  attributes exist (backporthttps://github.com/python/cpython/pull/1030343034).
  This means that descriptors and __getattr__ methods are no longer
  unexpectedly evaluated during isinstance() checks against runtime-checkable
  protocols. However, it may also mean that some objects which used to be
  considered instances of a runtime-checkable protocol on older versions of
  typing_extensions may no longer be considered instances of that protocol
  using the new release, and vice versa. Most users are unlikely to be affected
  by this change. Patch by Alex Waygood.

• Backport the ability to define __init__ methods on Protocol classes, a
  change made in Python 3.11 (originally implementedhttps://github.com/python/cpython/pull/31628ll/31628 by Adrian Garcia Badaracco).
  Patch by Alex Waygood.

• Speedup isinstance(3, typing_extensions.SupportsIndex) by >10x on Python
  <3.12. Patch by Alex Waygood.

• Add typing_extensions versions of SupportsInt, SupportsFloat,
  SupportsComplex, SupportsBytes, SupportsAbs and SupportsRound. These
  have the same semantics as the versions from the typing module, but
  isinstance() checks against the typing_extensions versions are >10x faster
  at runtime on Python <3.12. Patch by Alex Waygood.

• Add __orig_bases__ to non-generic TypedDicts, call-based TypedDicts, and
  call-based NamedTuples. Other TypedDicts and NamedTuples already had the attribute.
  Patch by Adrian Garcia Badaracco.

• Add typing_extensions.get_original_bases, a backport of
  types.get_original_bases,
  introduced in Python 3.12 (CPythonhttps://github.com/python/cpython/pull/101827l/101827, originally by James
  Hilton-Balfe). Patch by Alex Waygood.

  This function should always produce correct results when called on classes
  constructed using features from typing_extensions. However, it may
  produce incorrect results when called on some NamedTuple or TypedDict
  classes that use typing.{NamedTuple,TypedDict} on Python <=3.11.

• Constructing a call-based TypedDict using keyword arguments for the fields
  now causes a DeprecationWarning to be emitted. This matches the behaviour
  of typing.TypedDict on 3.11 and 3.12.

• Backport the implementation of NewType from 3.10 (where it is implemented
  as a class rather than a function). This allows user-defined NewTypes to be
  pickled. Patch by Alex Waygood.

• Fix tests and import on Python 3.12, where typing.TypeVar can no longer be
  subclassed. Patch by Jelle Zijlstra.

• Add typing_extensions.TypeAliasType, a backport of typing.TypeAliasType
  from PEP 695. Patch by Jelle Zijlstra.

• Backport changes to the repr of typing.Unpack that were made in order to
  implement PEP 692 (backport of
  https://github.com/python/cpython/pull/1040484048). Patch by Alex Waygood.

v4.5.0

Compare Source

• Runtime support for PEP 702, adding typing_extensions.deprecated. Patch
  by Jelle Zijlstra.
• Add better default value for TypeVar default parameter, PEP 696. Enables
  runtime check if None was passed as default. Patch by Marc Mueller (@​cdce8p).
• The @typing_extensions.override decorator now sets the .__override__
  attribute. Patch by Steven Troxler.
• Fix get_type_hints() on cross-module inherited TypedDict in 3.9 and 3.10.
  Patch by Carl Meyer.
• Add frozen_default parameter on dataclass_transform. Patch by Erik De Bonte.

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