[issue44881] Consider integration of PyObject_GC_UnTrack() with the trashcan C API

[Neil Schemenauer]

Neil Schemenauer <nas-python at arctrix.com> added the comment:

I wrote a proof-of-concept as bpo-44897.  PR 27718 (this issue) might a slightly better performance but I like the other one better because it doesn't expose so much implementation detail to extension types.  Either of them require careful review before merging.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue44881>
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