Thanks for your answer. I am new to zope and even though I am reading the zope book, I have not grasped completely the namespace stuff. For my problem, I used something like: <dtml-call expr="REQUEST.set('x','foo')"> Also, thanks for your link. With friendly salutations, Panos Hilaris

From: Dieter Maurer <dieter@handshake.de> Date: Mon, 4 Feb 2002 23:37:37 +0100 To: Panos Hilaris <philaris@yahoo.com> Cc: zope@zope.org Subject: Re: [Zope] passing a dtml-var to another method: dtml-let has no effect?

Panos Hilaris writes:

...

.... However, if I try:

<dtml-let x="'foo'"> <dtml-call sqlDistinct> </dtml-let>

where sqlDistinct is a ZSQL Method having an argument with the name x, I get a KeyError. ... You do not read documentation?

ZSQL Methods get their parameters either from REQUEST or (exclusive) from keyword parameters passed in.

Suggested reading: the Zope Book or

<http://www.dieter.handshake.de/pyprojects/zope/book/chap3.html>