How do I get static code analysis type support for enums (not just runtime support)?

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In my experience, python’s enums are pretty bad with typing. For example, pylance doesn’t respect the return type of _generate_next_value_ (however, mypy does).

Such cases require some work which I’d love to do if I knew a bit more details. If any core dev is reading it and wants to assist a little bit – I would greatly appreciate it!

I checked: both mypy (v0.971) and pylance (v2022.7.40) on python 3.11.0b4 do not give any errors even in strict mode for the following code:

from enum import Enum

class A(int, Enum):
    a = "such_string"
    b = 1

class B(str, Enum):
    a = "such_string"
    b = 1
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