Got it I will look for a different strategy. -EAD On Jul 7, 2008, at 9:38 AM, Jim Fulton wrote: > > On Jul 2, 2008, at 8:07 AM, Erik Dahl wrote: > >> I have a situation where I want to mutate the class of an instance > > This is not a use case supported by ZODB. > > Jim > > -- > Jim Fulton > Zope Corporation >