Merged in kidmose/pywhois/feature/fix-test_parser-keys_to_test (pull request #34)
test_parser.py: Respect keys_to_test/Fix error in 7bec7a730d69
{"domain_name": "YANDEX.RU", "expiration_date": "2018-09-30 21:00:00", "updated_date": null, "creation_date": "1997-09-23 09:45:07", "status": "REGISTERED, DELEGATED, VERIFIED"}