def tearDown(self):
        super(SimpleInstanceTest, self).tearDown()
        CONF.network_label_regex = self.orig_conf
        CONF.ip_start = None
def _compileddirpats(self):
        pat, matchfunc = _buildregexmatch(
            [("glob", p, "") for p in self._globdirpats], "$"
        )
        return matchfunc