[issue35070] test_getgrouplist may fail on macOS if user in too many groups

[Ned Deily]

Ned Deily <nad at python.org> added the comment:

Thanks for the analysis and the PR!  It turns out the problem is not new to 10.14; as you discovered, it's simply a matter of how may groups a particular user is in and, with all the system-generated groups, that number may vary from release to release and from user to user - which explains why the problem is not always reproducible.  I've added a few review comments to the PR.

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title: test_posix fails on macOS 10.14 Mojave -> test_getgrouplist may fail on macOS if user in too many groups
versions:  -Python 3.5, Python 3.6

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue35070>
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