diff -up tornado-4.4.1/tornado/test/options_test.py.test tornado-4.4.1/tornado/test/options_test.py --- tornado-4.4.1/tornado/test/options_test.py.test 2016-07-15 09:00:52.000000000 -0600 +++ tornado-4.4.1/tornado/test/options_test.py 2016-09-16 10:01:19.542583874 -0600 @@ -36,7 +36,7 @@ class OptionsTest(unittest.TestCase): options.define("port", default=80) options.define("username", default='foo') options.define("my_path") - config_path = os.path.join(os.path.dirname(__file__), + config_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), "options_test.cfg") options.parse_config_file(config_path) self.assertEqual(options.port, 443)