Google API quickstart.py error KeyError: '_module'

oauth2client is trying to load credentials from a json file with an incorrect structure.

Maybe the Ruby client uses a different file format but I'd be surprised. Are you sure you didn't save client_secret.json as ~/.credentials/gmail-quickstart.json accidentally?

Regardless, removing ~/.credentials/gmail-quickstart.json and re-authenticating will generate a new credentials file with the correct structure.

Try replacing creds = store.get() with creds = None temporarily. If this works, you can refactor your code to always start with flow-based credentials instantiation. This worked for me. It seems Google samples are out of sync with their oauth2client.

In this GitHub issue: error "KeyError: '_module'" when running gdrive_upload.py

sputnik-dev answared on 10 Jan 2016:

If someone have the same issue : auth_token.txt and client_secret.json are not the same! Don't link the client_secret.json from google API console. The file will be automatically created by the script.

Wrong way: gauth.SaveCredentialsFile("client_secret.json")

Right way: gauth.SaveCredentialsFile("<any random name>.json")

Extra:

PyDrive code that automate google drive api authetication. Use the browser just one time to authenticate and never more. It saves your credential data on mycreds.json :)

from pydrive.auth import GoogleAuthfrom pydrive.drive import GoogleDrivegauth = GoogleAuth()gauth.LoadCredentialsFile("mycreds.json")if gauth.credentials is None:    gauth.LocalWebserverAuth()elif gauth.access_token_expired:    gauth.Refresh()else:    gauth.Authorize()gauth.SaveCredentialsFile("mycreds.json")