def remove(self, elem):
        """Remove a requirement.

        :param elem: a string or :class:`Requirement` instance.
        """
        if isinstance(elem, text_type):
            for requirement in self:
                if requirement.package == elem:
                    return super(Requirements, self).remove(requirement)
        return super(Requirements, self).remove(elem)
def test_conf_inline_ratelimiting(self):
        with mock.patch.object(memcache, 'ConfigParser', get_config_parser()):
            app = memcache.MemcacheMiddleware(
                FakeApp(),
                {'error_suppression_limit': '5',
                 'error_suppression_interval': '2.5'})
        self.assertEqual(app.memcache._error_limit_count, 5)
        self.assertEqual(app.memcache._error_limit_time, 2.5)
        self.assertEqual(app.memcache._error_limit_duration, 2.5)