Hi!
The subject says it all.
If there isn't anything already available, does anyone know about
anyone working on something ?
Have you talked to any developers of Lasso? (http://lasso.entrouvert.org) It has Python bindings, and the project also produced Souk, a Python framework that implements the Liberty Alliance ID-FF 1.2 protocols. They might be working on future versions for SAML 2.
-- http://mail.python.org/mailman/listinfo/python-list