AssertionError: unhandled warning {message : SyntaxWarning("invalid escape sequence '\\('"), category : 'SyntaxWarning', filename : '/Users/sobolev/Desktop/cpython/Lib/test/test_enum.py', lineno : 1481, line : None}
----------------------------------------------------------------------
Ran 1 test in 6.852s
FAILED (failures=1)
test test___all__ failed
test___all__ failed (1 failure)
== Tests result: FAILURE ==
1 test failed:
test___all__
Total duration: 7.1 sec
Tests result: FAILURE
The fix is on its way.