问题
I am using cloud storage with App Engine Flex. Out of the blue i start getting this error message after deploy succeeds
The error is happening from these lines in my flask app.
from google.cloud import storage, datastore
client = storage.Client()
File "/home/vmagent/app/main.py", line 104, in _load_db
client = storage.Client()
File "/env/lib/python3.6/site-packages/google/cloud/storage/client.py", line 110, in __init__
project=project, credentials=credentials, _http=_http
File "/env/lib/python3.6/site-packages/google/cloud/client.py", line 250, in __init__
Client.__init__(self, credentials=credentials, client_options=client_options, _http=_http)
File "/env/lib/python3.6/site-packages/google/cloud/client.py", line 143, in __init__
scopes = client_options.scopes or self.SCOPE
AttributeError: 'ClientOptions' object has no attribute 'scopes'
This is something to do with breaking upgrades made to grpcio and google-api-core and google-cloud-storage packages based on numerous SO threads. However, I cant figure out where this is happening.
My requirements.txt is as follows:
setuptools>=40.3
grpcio<=1.27.2
google-api-core<1.17.0
Flask
gevent>=0.13
gunicorn>=19.7.1
numpy>=1.18.0
numpy-financial
scipy>=1.4
pvlib>=0.7
google-cloud-storage==1.28.0
google-cloud-datastore==1.12.0
google-cloud-pubsub
pandas==1.0.5
my app.yaml is as follows:
service: app-preprod
runtime: custom
env: flex
entrypoint: gunicorn -t 600 -c gunicorn.conf.py -b :$PORT main:app
runtime_config:
python_version: 3.6
manual_scaling:
instances: 1
resources:
cpu: 1
memory_gb: 4
beta_settings:
cloud_sql_instances: xxxx:europe-west6:component-cost
endpoints_api_service:
name: apipreprod-dot-xxxx.appspot.com
rollout_strategy: managed
Looking at the release histories, some new versions of google-cloud-storage etc were released a few days ago, but i have tried to maintain the same older version number.
The ridiculous thing is that with these exact same requirements.txt, i have an identical prod app engine that is working fine --- but that i had not redeployed for a week. Obviously, no problems at all with exactly the same versions of storage and datastore to run the client from my local machine.
--EDIT-- Apparently according to
https://github.com/googleapis/google-cloud-python/issues/10471
i should just add
google-cloud-core==1.3.0
to requirements.txt
This seems a workaround --- any better permanent way of ensuring this break doesnt catch me unawares?
回答1:
This is due to https://github.com/googleapis/google-cloud-python/issues/10471.
I'd recommend upgrading google-cloud-core and google-api-core to the latest versions with the bugfix.
回答2:
This error message indicates that you would need to set an attribute “scopes” for your ClientOptions object.
I would like to suggest you take a look at this documentation for the ClientOptions. The “scopes” attribute should be “OAuth access token override scopes”. You may set it to None. Please review that part of your code.
On the other hand, make sure that your properly prepared your environment to use Datastore client libraries.
来源：https://stackoverflow.com/questions/63278444/google-cloud-storage-python-client-attributeerror-clientoptions-object-has-no