[docs] [issue16195] Difficult or impossible to figure out how garbage collector and weak references should interact for user-defined extension types

[Stefan Behnel]

Stefan Behnel added the comment:

Just as a quick update here: Cython has since then switched to only using PyObject_ClearWeakRefs() and otherwise leaves the handling of the weakref slot to CPython.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue16195>
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