Python Social Auth is an easy-to-setup social authentication/registration mechanism with support for several frameworks and auth providers.
Crafted using base code from django-social-auth, it implements a common interface to define new authentication providers from third parties, and to bring support for more frameworks and ORMs.
As for Dec 03 2016, this library is now deprecated, the codebase was split and migrated into the python-social-auth organization, where a more organized development process is expected to take place.
Details about moving towards the new setup is documented in the migrating to social document.