http session module

[Jeff Davis]

        Can someone reccommend a good http session module? I would 
prefer a stable, fairly scalable session module (one I downloaded just 
used pickle, which seems like it wouldn't work for concurrent access). I 
know there are a couple out there, but the "Vaults of Parnassus" didn't 
have many such modules.

        I am planning to use mod_python, so if there is some trick I can 
do with persistant memory, that would also be helpful.

        Thanks,
                Jeff