python/typing_extensions
### [`v4.6.3`](https://togithub.com/python/typing_extensions/blob/HEAD/CHANGELOG.md#Release-463-June-1-2023)
[Compare Source](https://togithub.com/python/typing_extensions/compare/4.6.2...4.6.3)
- 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 CPython[https://github.com/python/cpython/pull/105152](https://togithub.com/python/cpython/pull/105152)l/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`](https://togithub.com/python/typing_extensions/blob/HEAD/CHANGELOG.md#Release-462-May-25-2023)
[Compare Source](https://togithub.com/python/typing_extensions/compare/4.6.1...4.6.2)
- 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`](https://togithub.com/python/typing_extensions/blob/HEAD/CHANGELOG.md#Release-461-May-23-2023)
[Compare Source](https://togithub.com/python/typing_extensions/compare/4.6.0...4.6.1)
- 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`](https://togithub.com/python/typing_extensions/blob/HEAD/CHANGELOG.md#Release-460-May-22-2023)
[Compare Source](https://togithub.com/python/typing_extensions/compare/4.5.0...4.6.0)
- `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/23294](https://togithub.com/python/cpython/pull/23294)3294 [https://github.com/python/cpython/pull/23383](https://togithub.com/python/cpython/pull/23383)ll/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/29334](https://togithub.com/python/cpython/pull/29334)9334. (The CPython bugfix was
backported to CPython 3.10.1 and 3.9.8, but no earlier.)
- Backport [CPython PR 26067](https://togithub.com/python/cpython/pull/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/74690](https://togithub.com/python/cpython/issues/74690)es/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"](https://docs.python.org/3.12/whatsnew/3.12.html#typing)
for more details.
- `isinstance()` checks against runtime-checkable protocols now use
`inspect.getattr_static()` rather than `hasattr()` to lookup whether
attributes exist (backport[https://github.com/python/cpython/pull/103034](https://togithub.com/python/cpython/pull/103034)3034).
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 implemented[https://github.com/python/cpython/pull/31628](https://togithub.com/python/cpython/pull/31628)ll/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`](https://docs.python.org/3.12/library/types.html#types.get_original_bases),
introduced in Python 3.12 (CPython[https://github.com/python/cpython/pull/101827](https://togithub.com/python/cpython/pull/101827)l/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 `NewType`s 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](https://peps.python.org/pep-0692/) (backport of
[https://github.com/python/cpython/pull/104048](https://togithub.com/python/cpython/pull/104048)4048). Patch by Alex Waygood.
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This PR contains the following updates:
<=4.5.0-><=4.6.3Release Notes
python/typing_extensions
### [`v4.6.3`](https://togithub.com/python/typing_extensions/blob/HEAD/CHANGELOG.md#Release-463-June-1-2023) [Compare Source](https://togithub.com/python/typing_extensions/compare/4.6.2...4.6.3) - 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 CPython[https://github.com/python/cpython/pull/105152](https://togithub.com/python/cpython/pull/105152)l/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`](https://togithub.com/python/typing_extensions/blob/HEAD/CHANGELOG.md#Release-462-May-25-2023) [Compare Source](https://togithub.com/python/typing_extensions/compare/4.6.1...4.6.2) - 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`](https://togithub.com/python/typing_extensions/blob/HEAD/CHANGELOG.md#Release-461-May-23-2023) [Compare Source](https://togithub.com/python/typing_extensions/compare/4.6.0...4.6.1) - 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`](https://togithub.com/python/typing_extensions/blob/HEAD/CHANGELOG.md#Release-460-May-22-2023) [Compare Source](https://togithub.com/python/typing_extensions/compare/4.5.0...4.6.0) - `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/23294](https://togithub.com/python/cpython/pull/23294)3294 [https://github.com/python/cpython/pull/23383](https://togithub.com/python/cpython/pull/23383)ll/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/29334](https://togithub.com/python/cpython/pull/29334)9334. (The CPython bugfix was backported to CPython 3.10.1 and 3.9.8, but no earlier.) - Backport [CPython PR 26067](https://togithub.com/python/cpython/pull/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/74690](https://togithub.com/python/cpython/issues/74690)es/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"](https://docs.python.org/3.12/whatsnew/3.12.html#typing) for more details. - `isinstance()` checks against runtime-checkable protocols now use `inspect.getattr_static()` rather than `hasattr()` to lookup whether attributes exist (backport[https://github.com/python/cpython/pull/103034](https://togithub.com/python/cpython/pull/103034)3034). 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 implemented[https://github.com/python/cpython/pull/31628](https://togithub.com/python/cpython/pull/31628)ll/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`](https://docs.python.org/3.12/library/types.html#types.get_original_bases), introduced in Python 3.12 (CPython[https://github.com/python/cpython/pull/101827](https://togithub.com/python/cpython/pull/101827)l/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 `NewType`s 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](https://peps.python.org/pep-0692/) (backport of [https://github.com/python/cpython/pull/104048](https://togithub.com/python/cpython/pull/104048)4048). Patch by Alex Waygood.Configuration
📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).
🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.
♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.
🔕 Ignore: Close this PR and you won't be reminded about this update again.
This PR has been generated by Mend Renovate. View repository job log here.