python/typing_extensions 4.13.0rc1

on GitHub

New features:

• Add typing_extensions.TypeForm from PEP 747. Patch by
  Jelle Zijlstra.
• Add typing_extensions.get_annotations, a backport of
  inspect.get_annotations that adds features specified
  by PEP 649. Patches by Jelle Zijlstra and Alex Waygood.
• Backport evaluate_forward_ref from CPython PR
  #119891 to evaluate ForwardRefs.
  Patch by Daraan, backporting a CPython PR by Jelle Zijlstra.

Bugfixes and changed features:

• Update PEP 728 implementation to a newer version of the PEP. Patch by Jelle Zijlstra.
• Copy the coroutine status of functions and methods wrapped
  with @typing_extensions.deprecated. Patch by Sebastian Rittau.
• Fix bug where TypeAliasType instances could be subscripted even
  where they were not generic. Patch by Daraan.
• Fix bug where a subscripted TypeAliasType instance did not have all
  attributes of the original TypeAliasType instance on older Python versions.
  Patch by Daraan and Alex Waygood.
• Fix bug where subscripted TypeAliasType instances (and some other
  subscripted objects) had wrong parameters if they were directly
  subscripted with an Unpack object.
  Patch by Daraan.
• Backport to Python 3.10 the ability to substitute ... in generic Callable
  aliases that have a Concatenate special form as their argument.
  Patch by Daraan.
• Extended the Concatenate backport for Python 3.8-3.10 to now accept
  Ellipsis as an argument. Patch by Daraan.
• Fix backport of get_type_hints to reflect Python 3.11+ behavior which does not add
  Union[..., NoneType] to annotations that have a None default value anymore.
  This fixes wrapping of Annotated in an unwanted Optional in such cases.
  Patch by Daraan.
• Fix error in subscription of Unpack aliases causing nested Unpacks
  to not be resolved correctly. Patch by Daraan.
• Backport CPython PR #124795:
  fix TypeAliasType not raising an error on non-tuple inputs for type_params.
  Patch by Daraan.
• Fix that lists and ... could not be used for parameter expressions for TypeAliasType
  instances before Python 3.11.
  Patch by Daraan.
• Fix error on Python 3.10 when using typing.Concatenate and
  typing_extensions.Concatenate together. Patch by Daraan.
• Backport of CPython PR #109544
  to reflect Python 3.13+ behavior: A value assigned to __total__ in the class body of a
  TypedDict will be overwritten by the total argument of the TypedDict constructor.
  Patch by Daraan, backporting a CPython PR by Jelle Zijlstra.
• Fix for Python 3.11 that now isinstance(typing_extensions.Unpack[...], TypeVar)
  evaluates to False, however still True for <3.11.
  Patch by Daraan