gh-91052: Add C API for watching dictionaries by carljm · Pull Request #31787 · python/cpython

Notes on the PR for reviewers:

• Since this API is intended for use by extensions, and _Py* APIs are internal-only, I added the API as public (Py*). But I think it should perhaps be CPython-specific, so I put it in Include/cpython/dictobject.h, not Include/dictobject.h. Not sure about any of this, though, so happy to change as requested.

• Issue: add support for watching writes to selected dictionaries #91052

Do you have a test harness/or something I can use (without too much effort :)? I could just run the Python test suite but that may be missing the point.

Do you have a test harness/or something I can use (without too much effort :)? I could just run the Python test suite but that may be missing the point.

Hi! I'm not sure what you are trying to achieve -- can you clarify your goals and how they relate to this PR?

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@markshannon I've updated this PR to the design we discussed, would be glad for your review. I'll try to get some updated pyperformance numbers tomorrow.

I think this may have introduced some refleaks into test_capi.

Thanks for the heads up, I'll take a look.