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__annotations__ are not inherited in 3.10 while they are in 3.8 #99535

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@henrifroese

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@henrifroese

Bug report

Python 3.8.13 inherits annotations from a subclass:

Python 3.8.13 (default, Oct 19 2022, 17:54:22) 
[Clang 12.0.0 ] :: Anaconda, Inc. on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> class A:
...     x: int
... 
>>> class B(A):
...     pass
... 
>>> print(A.__annotations__)
{'x': <class 'int'>}
>>> print(B.__annotations__)
{'x': <class 'int'>}
>>> print(B.__dict__)
{'__module__': '__main__', '__doc__': None}

Python 3.10.8 does not:

Python 3.10.8 (main, Nov  4 2022, 08:45:18) [Clang 12.0.0 ] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> class A:
...     x: int
... 
>>> class B(A):
...     pass
... 
>>> print(A.__annotations__)
{'x': <class 'int'>}
>>> print(B.__annotations__)
{}
>>> print(B.__dict__)
{'__module__': '__main__', '__doc__': None, '__annotations__': {}}

Can't find anything related to this in the changelogs, release notes, stackoverflow etc. Is this known/expected behaviour?

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