This is specifically a question relating to server to server authorisation between a python Google AppEngine app and Google\'s BigQuery, but could be relevant for other clou
I struggled with this one for a day or two. And I was finally able to get localhost working with server to server authentication, a service account and a .p12 cert.
If it's at all helpful to anyone, here's a simple gist: https://gist.github.com/dandelauro/7836962