https POST api.github.com None /repos/jacquev6/PyGithub/merges {'Content-Type': 'application/json', 'Authorization': 'Basic login_and_password_removed', 'User-Agent': 'PyGithub/Python'} {"head": "branchForHead", "base": "branchForBase"} 409 [('status', '409 Conflict'), ('content-length', '28'), ('x-github-media-type', 'github.beta; format=json'), ('x-content-type-options', 'nosniff'), ('x-ratelimit-remaining', '4980'), ('server', 'nginx/1.0.13'), ('connection', 'keep-alive'), ('x-ratelimit-limit', '5000'), ('cache-control', ''), ('date', 'Sat, 08 Sep 2012 12:29:28 GMT'), ('content-type', 'application/json; charset=utf-8')] {"message":"Merge conflict"}