Automatic admin rights to user groups

[Joe Landrigan]

My wife wants a website that would allow users to create ad-hoc groups and control group access.

She wants a website for stay-at-home moms to network, gossip, share information, and generally take over the world.  A friend pointed me at groups in BuddyPress, but that's PHP . . . and I like the idea of doing something like this in Django.  The key thing I *really* want is this right here:

The individual who creates the group is automatically the group’s first administrator. As a result, each group must have at least one administrator, though the first admin can choose to appoint others.

Is there an app that does this in Django?  If not, how would I go about creating one?  I think Guardian could be a good start, but as I'm new at this, and don't have much time to spare, I'm afraid learning it may be difficult.  Do I just need to use WordPress?  (Please! No!)

Thanks for any insight you can give!