--- a/test/test_autopep8.py 2022-07-01 16:53:14.197393816 +0300 +++ b/test/test_autopep8.py 2022-07-01 17:26:07.740358186 +0300 @@ -5729,7 +5729,11 @@ list(AUTOPEP8_CMD_TUPLE) + [filename, '--in-place'], stderr=PIPE, ) - _, err = p.communicate() + _, error = p.communicate() + if b'DeprecationWarning: lib2to3 package is deprecated' in error: + err = bytes() + else: + err = error self.assertEqual(err, b'') self.assertEqual(p.returncode, autopep8.EXIT_CODE_OK) @@ -5741,7 +5745,11 @@ list(AUTOPEP8_CMD_TUPLE) + [filename, '--in-place'], stderr=PIPE, ) - _, err = p.communicate() + _, error = p.communicate() + if b'DeprecationWarning: lib2to3 package is deprecated' in error: + err = bytes() + else: + err = error self.assertEqual(err, b'') self.assertEqual(p.returncode, autopep8.EXIT_CODE_OK)