req = urllib.request.Request(build_url + '/submitDescription', req_data)
req.add_header('Content-Type', 'application/x-www-form-urlencoded')
auth = 'Basic {}'.format(base64.b64encode('{}:{}'.format(user, token)))
req.add_header('Authorization', auth)
response = urllib.request.urlopen(req)
Set Hudson Build Description via Web API