GbqConnector should be able to fetch default credentials on Google Compute Engine · Issue #13577 · pandas-dev/pandas (original) (raw)

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Description

https://github.com/pydata/pandas/blob/master/pandas/io/gbq.py

class GbqConnector(object):
    ...
    def get_user_account_credentials(self):
        ...
    ...

Google Compute Engine and Google Dataproc etc. already have default application credentials on them. Therefore, there is no need of running OAuth2WebServerFlow while the method get_user_account_credentials is being called - instead return GoogleCredentials.get_application_default() is all you need. This change will allow you to run GbqConnector on commandline-only systems on Google Compute Engine without a need of a service account json key.