[Edu-sig] Question about Python - Social Networking Software

I am looking for some social networking software for a course I am teaching next winter. I would love for it to be Python. In PHP - something like Elgg would be great. It needs a Wiki, Blog, RSS feeds, etc etc. Should I just use DJango with a few modules? I worry that DJango is too much of a Mambo-clone - I want something that is user-centered (student centered) - not organization centered. Something with good access controls - with the ability to have closed groups - would be a nice feature. Thanks. Charles Severance University of Michigan