[issue32107] Improve MAC address calculation and fix test_uuid.py

[Barry A. Warsaw]

Barry A. Warsaw <barry at python.org> added the comment:


New changeset 56e444f8df34cd502d6e3b110c90aed086883a72 by Barry Warsaw in branch '2.7':
[2.7] bpo-32107 - Backport bitmask check fix (GH-4576) (#4590)
https://github.com/python/cpython/commit/56e444f8df34cd502d6e3b110c90aed086883a72


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