-----Original Message----- From: Tom Deprez <tom.deprez@uz.kuleuven.ac.be> To: Rik Hoekstra <rik.hoekstra@inghist.nl> Date: donderdag 30 maart 2000 16:14 Subject: Re: [Zope] External Method 3

Hi Rik,

...

I was blabbering last time about hasattr. The right solution is of course:

def recursiveMethod(self, obj, result): if hasattr(obj, aq_parent): result.append(obj.title) recursiveMethod(self, obj.aq_parent, result) return result

mmm, what does hasattr()? Does it checks if an obj as a certain property (eg aq_parent)?

yes, only in pythonish these are called attributes.

Unfortunately it seems not to work.

Hm, I tested it. It works for me. Can you tell me where it doesn't work and in what way? Does it fail. Is there a traceback? Remember it will still bail out (with an AttributeError) if the object has no attribute title!

I found another way to check if it has parents :

split(obj.absolute_url(),'/')[3:-1] != []

--> this works, but I think your solution is nicer, only it should work and I don't know why it doesn't.

any more details? Rik