I'm not sure which package you're asking for help with; I'm going to
assume it's velruse, which is an oauth/openid client library primarily
for Pyramid. It's not actually a Pylons Project subproject, but it's
commonly used, I think (or at least used to be) and still works. You
can use its "velruse.providers.google_oauth2" provider, which works
today to do oauth2 requests to Google. It's independent of Google+.