def NewAppInfo(self, appinfo):
    if self.backends:
      appinfo.backends = self.backends
      if self.IsBackend():
        appinfo.ApplyBackendSettings(self.backend_id)
Called when a new appinfo is read from disk on each request.
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/tools/dev_appserver_multiprocess.py/DevProcess.NewAppInfo