I've been playing around with ZClasses. I've created thin Python classes to use as a base class for my ZClass. I have a couple of questions regarding the best way to make use of this base class, however. First, if I create a Python base class, should I use it to control the the collection of base classes used by my ZClass? For example, suppose that I originally create a ZClass which has a base of MyPythonBase. Suppose that MyPythonBase does not inherit from something like ObjectManager. Later I decide that my ZClass needs to have ObjectManager behavior. Can I modify my base class to now inherit from ObjectManager? Second, if I define my base class inheritance from the ZClass definition interface, when I define new ZClasses which inherit from my Python base class, should I put my base class first in the list of base classes or last? If I understand how inheritance works, attributes are searched depth first, left to right. I believe this means that if I wanted to override some behavior of one of the other inherited classes, I would have to have my class first. What are the pros and cons of having my base class first or last? Finally, I've noticed that when a ZClass is defined, a predefined set of "views" are created for the object. For example, the "Contents" view might have "manage_main" and something else defined as available view methods. If methods are added to the ZClass, they show up in the list. If I wanted to define some new methods at the Python level, what do I need to do to have them show up in the view list? For example, suppose that I create a subclass of Folder and I want to have an alternative way to view the my folders contents. I can think of two ways to make this work. First, make sure that my base class is first in the inheritance list and then override the definition of something like "manage_main", substituting my DTML code for the standard DTML code. Alternatively, I could define a new method in my ZClass which has the DTML code I desire. What I'd like to know is how I could define a new method in my Python code and have it selectable as an available view. Thanks. James W. Howe mailto:jwh@allencreek.com Allen Creek Software, Inc. pgpkey: http://ic.net/~jwh/pgpkey.html Ann Arbor, MI 48103