[issue38206] Clarify that tp_dealloc must decref for heap allocated type

[Ammar Askar]

Change by Ammar Askar <ammar at ammaraskar.com>:


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keywords: +patch
pull_requests: +15844
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/16248

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38206>
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