Add `PyDict_SetDefaultRef` to the Limited API

[da-woods]

Feature or enhancement

Proposal:

It's a useful (thread safe) function, and so it'd be useful to have direct access rather than needing to go through a Python function call.

(I will prepare a PR for this shortly so no-one else need do anything, please)

Has this already been discussed elsewhere?

No response given

Links to previous discussion of this feature:

I've raised it on the C API working group and it's been approved - capi-workgroup/decisions#85. The drop-down above doesn't let me choose that as an option.

Linked PRs

• gh-141726: Add PyDict_SetDefaultRef to the Stable ABI #141727

[da-woods]

This is done I believe - it shouldn't be backported so there's nothing more to do

[vstinner]

This is done I believe - it shouldn't be backported so there's nothing more to do

Correct, it's only added to the limited C API version 3.15.