Hi! In my last project I've had to use regular mysql database as persistence backend for python program. BoboPOS (ZODB now) is the nice module, but it uses plain file as storage. So, I've modified it to use mysql database. Two options are available: a) mysql usage as the pickle storage b) interfacing to regular (legacy) mysql database The second one, obviously, requires a little bit more effort from developer: (s)he has to define reader/writer functions. The module is available at my site http://www.kbi.kiev.ua/~akhavr / Projects/ Python SQL persistence Some documentation is available also. -- SY, Andrey V Khavryutchenko http://www.kbi.kiev.ua/~akhavr Freelance Software Engineer Visit my site Shick's Law: There is no problem a good miracle can't solve.