[issue43923] Can't create generic NamedTuple as of py3.9

[Guido van Rossum]

Guido van Rossum <guido at python.org> added the comment:

Mypy seems to allow this:

from typing import NamedTuple, TypeVar, Generic, List, Tuple

T = TypeVar("T")

class New(NamedTuple, Generic[T]):
    x: List[T]
    y: Tuple[T, T]

It's true that pyright doesn't, but maybe that's because it doesn't work in 3.9-3.10?

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43923>
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