"Jeff K. Hoffman" wrote:
All of my efforts are progressing towards one goal: How do I upgrade existing instances of a ZClass? Since I could find no __setstate__ method for ZClasses, I re-wrote the containing class as a Python class and figured I could leverage __setstate__ there, instantiating the subordinate ZClasses when required.
No such luck.
Okay, here's an interesting approach. I've been playing with __of__ a lot lately, so why not see what else it can do? :-) In your class that needs to be upgraded, add this method, modifying it as needed: def __of__(self, parent): if (self.isNotUpgraded()): self.performUpgrade() return MyClass.inheritedAttribute('__of__')(self, parent) When any user walks up to the object, you will have the opportunity to perform the upgrade. Shane