Bug report

Right now only collections.namedtuple is tested:

@serhiy-storchaka noted in #108752 (comment) that only named tuples created by collections.namedtuple() are supported. But, since typing.NamedTuple uses collections.namedtuple inside:

>>> import typing
>>> 
>>> class N(typing.NamedTuple):
...    x: int
...    y: int
... 
>>> N.__replace__
<function N._replace at 0x10580a210>
>>> import copy
>>> copy.replace(N(1, 2), x=3)
N(x=3, y=2)

I have a PR ready with extra tests.

Refs #108751
Refs #108752

Linked PRs

• gh-109956: Also test typing.NamedTuple with copy.replace #109957