def SendSingleFile(self, path, payload, mime_type):
    logging.info('Uploading %s %s (%s bytes, type=%s) to %s.',
                 self.what, path, len(payload), mime_type, self.single_url)
    self.rpcserver.Send(self.single_url,
                        payload=payload,
                        content_type=mime_type,
                        path=path,
                        **self.params)
Send a single file on its way.
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/tools/appcfg.py/UploadBatcher.SendSingleFile