Dan Keshet writes:
... <dtml-with aq_explicit> <dtml-if method_y> Yup <dtml-else> Nope </dtml-if> </dtml-with>
But it says "Yup" in Folders without a method_y "aq_explicit" is not fail safe.
If you know that your objects are always folders, you can use that folders provide access to their content via subscription and use the following Python Script: hasChild(folder,id): try: folder[id]; return 1 except KeyError: return 0 If your objects are arbitrary, you should use an external method: hasOwnAttribute(object,attr): o= getattr(object,'aq_base',object) return hasattr(o,attr) Of course, you can make a HotFix product (--> HowTo on Zope.org) to provide such a beast as "TemplateDict" attribute (I think, Zope should have such a method builtin). Dieter