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gh-124520: What's New entry for ctypes metaclass __new__/__init__ change (GH-124546)
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@ -824,6 +824,24 @@ copy
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(Contributed by Serhiy Storchaka in :gh:`108751`.)
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ctypes
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------
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* As a consequence of necessary internal refactoring, initialization of
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internal metaclasses now happens in ``__init__`` rather
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than in ``__new__``. This affects projects that subclass these internal
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metaclasses to provide custom initialization.
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Generally:
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- Custom logic that was done in ``__new__`` after calling ``super().__new__``
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should be moved to ``__init__``.
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- To create a class, call the metaclass, not only the metaclass's
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``__new__`` method.
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See :gh:`124520` for discussion and links to changes in some affected
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projects.
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dbm
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---
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