"ImportError: file_cache is unavailable" when using Python client for Google service account file_cache

Question

I'm using a service account for G Suite with full domain delegation. I have a script with readonly access to Google Calendar. The script works just fine, but throws an error (on a background thread?) when I "build" the service. Here's the code: ``` from oauth2client.service_account import ServiceAccountCredentials from httplib2 import Http import urllib import requests from apiclient.discovery import build cal_id = "my_calendar_id@group.calendar.google.com" scopes = ['https://www.googleapis.com/auth/calendar.readonly'] credentials = ServiceAccountCredentials.from_json_keyfile_name('my_cal_key.json', scopes=scopes) delegated_credentials = credentials.create_delegated('me@mydomain.com') http_auth = delegated_credentials.authorize(Http()) # This is the line that throws the error cal_service = build('calendar','v3',http=http_auth) #Then everything continues to work normally request = cal_service.events().list(calendarId=cal_id) response = request.execute() # etc... ``` The error thrown is…

Accepted Answer

I am a bit late to the party here but I had a similar problem today and found the answer here

Solution to only the error : `file_cache is unavailable when using oauth2client >= 4.0.0`

Solution:

change your `discovery.build()` to have the field `cache_discovery=False` i.e

```
discovery.build(api, version, http=http, cache_discovery=False)
```

"ImportError: file_cache is unavailable" when using Python client for Google service account file_cache

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