[issue45464] TypeError when inheriting from both OSError and AttributeError

[Christian Heimes]

Christian Heimes <lists at cheimes.de> added the comment:

You are correct. To be more precise, it's caused by GH-16856. The commit introduced PyAttributeErrorObject struct. Since AttributeError and OSError now have an incompatible memory layout, it is no longer possible to create a subclass that has AttributeError and OSError as parent classes.

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keywords: +3.10regression
nosy: +christian.heimes
versions: +Python 3.11

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