David Elfstrom wrote: > Where in the Zope Book does this come from? > http://www.zope.org/Documentation/Books/ZopeBook/current/AdvZPTold.stx I got this thing working. I had added a paramter to the "Parameter List" for the python script in question (for testing). Talk of oversight !!!!! The problem lay there. The moment I removed this fellow everything fell in place. Thanks Chetan