def lookupGroup(self, name):
        assert isinstance(name, unicode)
        name = name.lower()
        try:
            group = self.groups[name]
        except __HOLE__:
            return defer.fail(failure.Failure(ewords.NoSuchGroup(name)))
        else:
            return defer.succeed(group)
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/words/service.py/InMemoryWordsRealm.lookupGroup