For just the fundaments:
Facebook's own SDK: https://github.com/facebook/python-sdk/blob/master/examples/...
or
Requests: http://docs.python-requests.org/en/latest/index.html
If you need more providers, there's also Django SocialAuth, but I'm not sure if it's updated for Facebook's OAuth 2 stuff yet.
It implements OAuth version 1.0 (check the source: https://github.com/simplegeo/python-oauth2/blob/master/oauth... and search for "Blaine")
For just the fundaments:
Facebook's own SDK: https://github.com/facebook/python-sdk/blob/master/examples/...
or
Requests: http://docs.python-requests.org/en/latest/index.html
If you need more providers, there's also Django SocialAuth, but I'm not sure if it's updated for Facebook's OAuth 2 stuff yet.