[Zope-dev] Re: Renaming a product
Philipp von Weitershausen
philipp@weitershausen.de
Wed, 18 Jun 2003 12:40:57 -0500
Clemens Robbenhaar wrote:
> The actual work is the transformation of instances of class "A.Foo" to
> class "B.Foo"; to be on the safe side one would have to copy over all
> attributes manually. If You want to try a fast and dirty solution, You
> could try to write the new class into the '__class__' attribute of the
> instance of the old class, making it an instance of the new class, but
> I do not know it this really works.
Somebody correct me please, if I'm wrong, but
1. tinkering with __class__ is the only way to do this.
2. you can not tinker with __class__ of an ExtensionClass, i.e. all
Persistent objects.
So, it is not doable, IIRC.
Phil