[Zope] import error - No module named iclass

[Harald Winkelmann]

> >Hi everybody,
> >
> >I'm upgrading to zope 2.6.0.
> >When I try to import a ZClass based Product from zope 2.5.1 
> i get the 
> >following error.
> >
> >Error Type: ImportError
> >Error Value: No module named iclass
> >
> > 
> >Any ideas ???
> >Harry
> >  
> >
> Yup.  This was discussed about a week ago. Search the mailing 
> list archives; but as I remember, only the ZClasses descended 
> from ObjectManager have the problem, and then only if there 
> is a non-empty list on the SubObjects tab.  To export from 
> 2.5.x, remove all from that list; then it will import fine 
> into 2.6.  Then, I presume that you can recreate the list of 
> allowed subobjects, though I have not tried this.
> 
> 
> -- Jim Washington
> 

This worked fine.
Thanks.

Harry