New submission from Guido van Rossum:
Proxy for https://github.com/python/typing/issues/332 (issue) and
https://github.com/python/typing/pull/334 (fix).
"""
from typing import Generic, TypeVar
class C(Generic[TypeVar('T')]):
__slots__ = ('potato',)
# ValueError: 'potato' in __slots__ conflicts with class variable
C[int]
This is because bare C is created with a class member descriptor potato, and
instantiating it tries to create a class with all the attributes in C.
"""
@ned, I'll leave it up to you whether this is of sufficient severity to put in
3.6rc1 or not.
Do I need to attach the fix as a diff to this bug?
----------
assignee: gvanrossum
messages: 281649
nosy: gvanrossum, ned.deily
priority: normal
severity: normal
status: open
title: Error when using Generic and __slots__
versions: Python 3.5, Python 3.6, Python 3.7
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<http://bugs.python.org/issue28790>
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