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Note that tp_clear and m_clear are not always called (GH-27581)

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Petr Viktorin 2021-08-04 20:01:31 +02:00 • committed by GitHub
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Doc/c-api/module.rst
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@ -221,6 +221,12 @@ or request "multi-phase initialization" by returning the definition struct itsel
than 0 and the module state (as returned by :c:func:`PyModule_GetState`)
is ``NULL``.
Like :c:member:`PyTypeObject.tp_clear`, this function is not *always*
called before a module is deallocated. For example, when reference
counting is enough to determine that an object is no longer used,
the cyclic garbage collector is not involved and
:c:member:`~PyModuleDef.m_free` is called directly.
.. versionchanged:: 3.9
No longer called before the module state is allocated.