Hold on, test_parser started failing for me. Things like this (lots of variations): ====================================================================== FAIL: test_assert (__main__.RoundtripLegalSyntaxTestCase) ---------------------------------------------------------------------- Traceback (most recent call last): File "Lib/test/test_parser.py", line 176, in test_assert self.check_suite("assert alo < ahi and blo < bhi\n") File "Lib/test/test_parser.py", line 28, in check_suite self.roundtrip(parser.suite, s) File "Lib/test/test_parser.py", line 19, in roundtrip self.fail("could not roundtrip %r: %s" % (s, why)) AssertionError: could not roundtrip 'assert alo < ahi and blo < bhi\n': illegal assert statement