def test_not(self):
        grammar = Grammar(r'''not_arp = !"arp" ~"[a-z]+"''')
        assert_raises(ParseError, grammar.parse, 'arp')
        ok_(grammar.parse('argle') is not None)
wsa:Action attribute
dataset/ETHPy150Open erikrose/parsimonious/parsimonious/tests/test_grammar.py/GrammarTests.test_not--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/api/SOAPpy/wstools/WSDLTools.py/Operation.getFaultAction