We've just released version 1.4 of Durus, the persistent object system for Python. Durus Home Page: http://www.mems-exchange.org/software/durus/ There are only a couple of changes in this release, and neither should require any modification of existing Durus applications. 1) Revise serialize.py to avoid using cPickle.noload(), which can't handle dict subclasses. 2) Add a --startup option to the durus command line tool. - David Binger