Feature or enhancement

Proposal:

This issue is to make the concept of"named tuple" support the__replace__ protocol.

collections.namedtuple andtyping.NamedTuple already support the__replace__ protocol in:

• gh-108751: Add copy.replace() function #108752

PyStructSequences are alsonamed tuples but they do not support the__replace__ protocol yet.

It would be convenient ifPyStructSequence be supported incopy.replace().

Has this already been discussed elsewhere?

I have already discussed this feature proposal on Discourse

Links to previous discussion of this feature:

• Add generalized replace() function #108751
• https://discuss.python.org/t/generalize-replace-function/28511
• Also testtyping.NamedTuple withcopy.replace #109956
• Add support of SimpleNamespace in copy.replace() #109174
• gh-109174: Add support of SimpleNamespace in copy.replace() #109175

Linked PRs

• gh-110222: Add support of PyStructSequence in copy.replace() #110223