Re: [Zope] Problems with zclass and instances!!

Edgardo Zulian writes:

... Z Instance property no longer follows Z Class default value, after it has been written once, even if written with the former "default" value ... ... how to detect, whether overwritten? .... You can not do it in DTML or Python Script or other TTW contexts.

In an External Method (or other non-TTW contexts), you can use: instance.__dict__.has_key('property_name') If this expression returns a true value, then your "instance"'s property value has been written and will no longer follow a change in the class's default value. You can then use: del instance.property_name to revert to the previous state (inheriting the default) Dieter