Hi, A trick I have found useful is to implement an external method called dprint. I print things into a string variable inside the REQUEST variable. This makes debugging easier, especially when you have looping conditions. <dtml-call "dprint(myvar)"> And then, in the stardard_footer_html or something like that, I print out the string (which may have many lines) and also the REQUEST variable and SESSION variables. There is a flag that I can set, so in the production copy the debug print is suppressed. This is kind of useful. But as always, there is probably already something done by someone else. So the question is: Does Zope already come with some debugging feature like this? Or has anyone done some something like this? I guess it'll be good for Zope to come with some elementary debugging features. A simple print statement already helps a lot. Is there such a thing already? regards, Hung Jung ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com