Issue #19794: Improved markup for True/False constants.
Issue #19638: Raise ValueError instead of crashing when converting billion character strings to float.
Issue #19638: Skip large digit string tests on 32-bit platforms.
Fix misuse of the bigmemtest decorator
Issue #11489: JSON decoder now accepts lone surrogates.
Issue #11508: Fixed uuid.getnode() and uuid.uuid1() on environment with
virtual interface.  Original patch by Kent Frazier.
Issue #19588: Fixed tests in test_random that were silently skipped most
of the time.  Patch by Julian Gindi.
Merge heads
Skip test_find_mac on Windows (issue #19804).

This test requires the ifconfig executable on $PATH, /sbin/, or /usr/sbin.