[issue45438] inspect not capturing type annotations created by __class_getitem__

[Raymond Hettinger]

New submission from Raymond Hettinger <raymond.hettinger at gmail.com>:

In the example below, __annotations__ is correct but not the corresponding Signature object.

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from typing import List

def f(s: List[float]) -> None: pass

def g(s: list[float]) -> None: pass

>>> inspect.signature(f)
<Signature (s: List[float]) -> None>

>>> inspect.signature(g)
<Signature (s: list) -> None>

g.__annotations__
{'s': list[float], 'return': None}

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components: Library (Lib)
messages: 403692
nosy: gvanrossum, levkivskyi, rhettinger
priority: normal
severity: normal
status: open
title: inspect not capturing type annotations created by __class_getitem__
versions: Python 3.10

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue45438>
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