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
4.12.1
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.
4.12.0
This release focuses on compatibility with the upcoming release of
Python 3.13. Most changes are related to the implementation of type
parameter defaults (PEP 696).
Thanks to all of the people who contributed patches, especially Alex
Waygood, who did most of the work adapting typing-extensions to the
CPython PEP 696 implementation.
There is a single change since 4.12.0rc1:
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.
Changes included in 4.12.0rc1:
Improve the implementation of type parameter defaults (PEP 696)
Backport the typing.NoDefault sentinel object from Python 3.13.
TypeVars, ParamSpecs and TypeVarTuples without default values now have
their __default__ attribute set to this sentinel value.
TypeVars, ParamSpecs and TypeVarTuples now have a has_default()
method, matching typing.TypeVar, typing.ParamSpec and
typing.TypeVarTuple on Python 3.13+.
TypeVars, ParamSpecs and TypeVarTuples with default=None passed to
their constructors now have their __default__ attribute set to None
at runtime rather than types.NoneType.
Fix most tests for TypeVar, ParamSpec and TypeVarTuple on Python
3.13.0b1 and newer.
Backport CPython PR #118774,
allowing type parameters without default values to follow those with
default values in some type parameter lists. Patch by Alex Waygood,
backporting a CPython PR by Jelle Zijlstra.
It is now disallowed to use a TypeVar with a default value after a
TypeVarTuple in a type parameter list. This matches the CPython
implementation of PEP 696 on Python 3.13+.
Fix bug in PEP-696 implementation where a default value for a ParamSpec
Add typing_extensions.get_annotations, a backport of
inspect.get_annotations that adds features specified
by PEP 649. Patch by Jelle Zijlstra.
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
Release 4.12.1 (June 1, 2024)
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.
Release 4.12.0 (May 23, 2024)
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.
Release 4.12.0rc1 (May 16, 2024)
This release focuses on compatibility with the upcoming release of
Python 3.13. Most changes are related to the implementation of type
parameter defaults (PEP 696).
Thanks to all of the people who contributed patches, especially Alex
Waygood, who did most of the work adapting typing-extensions to the
CPython PEP 696 implementation.
Full changelog:
Improve the implementation of type parameter defaults (PEP 696)
Backport the typing.NoDefault sentinel object from Python 3.13.
TypeVars, ParamSpecs and TypeVarTuples without default values now have
their __default__ attribute set to this sentinel value.
TypeVars, ParamSpecs and TypeVarTuples now have a has_default()
method, matching typing.TypeVar, typing.ParamSpec and
typing.TypeVarTuple on Python 3.13+.
TypeVars, ParamSpecs and TypeVarTuples with default=None passed to
their constructors now have their __default__ attribute set to None
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Bumps typing-extensions from 4.11.0 to 4.12.2.
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Commits
e1250ff
Prepare release 4.12.2 (#426)53bcdde
Avoid error if origin has a buggy eq (#422)7269638
Prepare release 4.12.1 (#418)8dfcf3c
FixTypeError
on nestedAnnotated
types where the inner type has unhashab...d76f591
Switch from flake8 to ruff (#414)920d60d
Support my PEP 649 branch (#412)e792bce
Ignore fewer flake8 rules when linting tests (#413)f90a8dc
Prepare release 4.12.0 (#408)118e1a6
Make sureisinstance(typing_extensions.ParamSpec("P"), typing.TypeVar)
is u...910141a
Add security documentation (#403)You can trigger a rebase of this PR by commenting
@dependabot rebase
.Dependabot commands and options
You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot show