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

[Guido van Rossum]

Guido van Rossum added the comment:

Oh the line

ByteString.register(type(memoryview(b'')))

should be removed from typing.py.

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priority: deferred blocker -> release blocker

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue28339>
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