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Author gvanrossum
Recipients gvanrossum, rhettinger, serhiy.storchaka
Date 2021-11-12.20:35:44
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In-reply-to <1636742606.33.0.065777773807.issue45791@roundup.psfhosted.org>
Content 
I believe that the PEP 3119 example doesn't work (I've confirmed something
simpler) but I have a feeling that the uses of __instancecheck__ in
typing.py are actually okay. For example, isinstance(42, typing.Any)
correctly calls _SpecialForm.__instancecheck__ -- because Any is not a
type, it's an instance of typing._SpecialForm so it all works out
correctly. (I haven't checked out the other -- @Serhiy do you have time to
look into that one?)
History
Date User Action Args
2021-11-12 20:35:44gvanrossumsetrecipients: + gvanrossum, rhettinger, serhiy.storchaka
2021-11-12 20:35:44gvanrossumlinkissue45791 messages
2021-11-12 20:35:44gvanrossumcreate