python-josso-auth provides a JOSSOAuth authentication for python-social-auth, which you can subclass to easily add JOSSO providers as social auth options.

To use, just create a class for your provider which extends JOSSOAuth and provide a name and base URL.

from josso.backend import JOSSOAuth

class ExampleJOSSOProvider(JOSSOAuth):
    name = 'example_josso'
    base_url = 'https://example.com/josso/'

Now you can include your backend in your settings. For example, with Django:

AUTHENTICATION_BACKENS += ('myapp.backends.ExampleJOSSOProvider',)

$ pip install python-josso-auth