Ron Bickers writes:

I want to see if an object is the one aqcuired from the root, but I'm hitting walls.

<dtml-var "PARENTS[-1].myObject"> <dtml-var "myObject"> <dtml-var "PARENTS[-1].myObject is myObject">

This returns the following when in the root folder context:

<TinyTable instance at 8684ad8> <TinyTable instance at 8684ad8> 0 What you see here, is Zope's (more precisely ExtensionClass's) acquisition magic:

when you access "object.attribute", you (usually) will not get the object corresponding to "attribute" but a new object: "attribute.__of__(object)" i.e. the attribute object in the context of "object". When you look up an attribute of this object, it will first in the object itself and when it does not success there, it will look in the context. That is what you like with acquisition. The downside: When you access the "same" object via different contexts, you will in fact get different objects (as the contexts are different). "is" will return false, as it should be. But, even, if you use "==", you will get "false". There have been some discussion in the list, whether this is the best behaviour. What can you do? You can use the "aq_base" attribute to strip away any context and get to the base object. At least in Zope 2.2.1, "aq_base" was not exposed to DTML. Thus, you would need an external method, say "getBaseObject", to get at the base: def getBaseObject(object): return getattr(object,'aq_base',object) With this function, you can compare the base objects: <dtml-var "getBaseObject(myvar) is getBaseObject(PARENT[-1].myvar)"> Be careful, however: Even, if such a test returns true for two objects, the objects may nevertheless have different behaviour (as the contexts are different). Dieter