I can't believe it, but I didn't have the last comma ({'b':'B', 'bb':'BB'}, ) and that's what was killing me .....agh BTW, I noticed you are using lists of dictionaries instead of the "standard" tuple of dictionaries. I don't know if there are any consequences to doing this. Anyway, since yours are lists you should be able to to do this: class A: _properties = [ {'a':'A', 'aa':'AA'}, ] class B(A): _properties = [ {'b':'B', 'bb':'BB'}, ] _properties.append(A._properties) not that it realy matters. Thanks, Dan Andy McKay wrote:
class A: _properties = [ {'a':'A', 'aa':'AA'}, ]
class B(A): _properties = [ {'b':'B', 'bb':'BB'}, ] _properties = _properties + A._properties
b = B() print b._properties
Works for me. -- Andy McKay, Developer, ActiveState http://www.ActiveState.com Programming for the People
----- Original Message ----- From: "Daniel Rusch" <drusch@globalcrossing.com> To: <zope@zope.org> Sent: Thursday, August 17, 2000 11:30 AM Subject: [Zope] getting base classes's (super class) _properties tuple
Say I have a fully functional (and more importantly, working) Product will call A.
I want to extend this Product's capabilities so I wish to derive another
class from it, call it B.
No problem,
class B(A): .........
now in class B I want to add a new property.
Is the a way of getting the base (super) class _properties tuple and just adding the new one to it. Since a tuple is an immutable object I can't do this: _properties=A._properties.append({'id':'RenderStandardHeader', 'type':'int','mode':'w'})
Any thoughts ????
DR
_______________________________________________ Zope maillist - Zope@zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
_______________________________________________ Zope maillist - Zope@zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )