Will T <timwillo...@gmail.com> added the comment:
I believe I'm experiencing a related bug in the new (3.7) version
unfortunately. The current version of typing.Generic.__init_subclass__ isn't
chaining to super(Generic, cls).__init_subclass__, meaning Generic's position
in class bases can prevent subsequent bases from working properly. I can
currently work around it with this unsightly hack but it's obviously suboptimal:
_old_generic_init_subclass = object.__getattribute__(ta.Generic,
'__init_subclass__').__func__
@classmethod # noqa
def _new_generic_init_subclass(cls, *args, **kwargs): # noqa
_old_generic_init_subclass(cls, *args, **kwargs)
super(ta.Generic, cls).__init_subclass__(*args, **kwargs)
ta.Generic.__init_subclass__ = _new_generic_init_subclass # noqa
----------
nosy: +wrmsr
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue32162>
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