[issue45266] subtype_clear can not be called from derived types

[Victor Milovanov]

Victor Milovanov <lostfreeman at gmail.com> added the comment:

To put it differently, if you think in terms of MRO, my custom type's MRO is

my_type_clear (from my type), subtype_clear (from PyTypeObject), etc

And subtype_clear incorrectly assumes that it is the first entry in the object's MRO list for tp_clear.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue45266>
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