[issue44969] Subclassing of annotated types does not always work

[Serhiy Storchaka]

Serhiy Storchaka <storchaka+cpython at gmail.com> added the comment:

I think that __mro_entries__() for annotated types should return the result of __mro_entries__() for the original type if it has __mro_entries__. But details can be complicated, especially if user-defined generic types are involved.

Alternatively, __build_class__ can call __mro_entries__() repeatedly for the result of __mro_entries__(). I do not know what is better.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue44969>
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