DeadlineExceededError

DeadlineExceededError のエラー対応を検討

対応例
http://stage.vambenepe.com/archives/category/implementation

結果　google/appengine/runtime/apiproxy.py　を参考に

from google.appengine import runtime
from google.appengine.runtime import apiproxy_errors
from google3.apphosting.runtime import _apphosting_runtime___python__apiproxy

これらを import して対応

except runtime.DeadlineExceededError:

File "/base/python_lib/versions/1/google/appengine/runtime/apiproxy.py", line 161, in Wait
  rpc_completed = _apphosting_runtime___python__apiproxy.Wait(self)
DeadlineExceededError

だけでなく CancelleError というものもある。

File "/base/python_lib/versions/1/google/appengine/runtime/apiproxy.py", line 189, in CheckSuccess
  raise self.exception
CancelledError: The API call datastore_v3.Count() was explicitly cancelled.