Full error text: ``` 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 ``` Repro: `./python.exe -m test -v test___all__` Originally found in: https://github.com/python/cpython/pull/99461#issuecomment-1315706879 The fix is on its way. <!-- gh-linked-prs --> ### Linked PRs * gh-99519 <!-- /gh-linked-prs -->