[issue23102] distutils: isinstance checks fail with setuptools-monkeypatched Extension/Distribution

[Greg Turner]

Greg Turner added the comment:

Double Huzzah.

I can probably cook up a test and even look at those method invocations in considerably less than the existing 1.5-year lifecycle of this bug, but not necessarily immediately due to reasons.

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Added file: http://bugs.python.org/file44620/0002-distutils-type-checks-can-fail-issue-23102.patch

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