[issue28339] "TypeError: Parameterized generics cannot be used with class or instance checks" in test_functools after importing typing module

[Ivan Levkivskyi]

Ivan Levkivskyi added the comment:

I think this is the right way to fix this, as discussed on python-dev, memoryview is not considered consistent with ByteString.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue28339>
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