Using Gmail API. My client secret file is downloaded and working for Ruby. When I try the quickstart.py (python) version I get this error
File "quickstart.py", line 70, in <module>
main()
File "quickstart.py", line 55, in main
credentials = get_credentials()
File "quickstart.py", line 38, in get_credentials
credentials = store.get()
File "/Library/Python/2.7/site-packages/oauth2client/client.py", line 374, in get
return self.locked_get()
File "/Library/Python/2.7/site-packages/oauth2client/file.py", line 79, in locked_get
credentials = Credentials.new_from_json(content)
File "/Library/Python/2.7/site-packages/oauth2client/client.py", line 281, in new_from_json
module = data['_module']
KeyError: '_module'
I have not changed the file at all, just added the client_secret.json to that working directory and also install the google-api-python-client. My python code came from here: https://developers.google.com/gmail/api/quickstart/python
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.