https GET api.github.com None /users/ThisUserShouldReallyNotExist {'Authorization': 'Basic login_and_password_removed', 'User-Agent': 'PyGithub/Python'} null 404 [('status', '404 Not Found'), ('x-ratelimit-remaining', '4968'), ('content-length', '23'), ('server', 'nginx/1.0.13'), ('connection', 'keep-alive'), ('x-ratelimit-limit', '5000'), ('etag', '"e66a7a6c91e2c26803f3f49feb7a883f"'), ('date', 'Sat, 02 Jun 2012 12:24:43 GMT'), ('content-type', 'application/json; charset=utf-8')] {"message":"Not Found"}