def test_namespaceOMGItsTooHard(self):
        """
        Default namespace is C{"<unknown>"} when a logger is created from a
        context in which is can't be determined automatically and no namespace
        was specified.
        """
        result = []
        exec(
            "result.append(Logger())",
            dict(Logger=Logger), locals(),
        )
        self.assertEqual(result[0].namespace, "<unknown>")

        Default namespace is C{"<unknown>"} when a logger is created from a
        context in which is can't be determined automatically and no namespace
        was specified.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/logger/test/test_logger.py