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Chris McDonough wrote Nope. Lamba, filter, reduce, and map should IMHO not be part of DTML. Actually, exprs probably shouldn't be in there in the first place. People are trying to use DTML as a way to process non-UI elements. This is a slippery slope, and leads to something like PHP or ASP. My opinion is this: Generate and format your HTML with DTML, and do everything else in Python. This gives you the added benefit that you can change the return values of functions by changing the Python code without having to muck with DTML, which is painful any way you look at it.

Until PythonMethods are back in the distribution, you can't stop people from using DTML for this stuff - the only alternative is to give everyone who ever needs to do something more than simple HTML access to the file system. I can't see that happening on zope.org, or many other sites. I agree whole-heartedly that DTML's expr syntax is nightmarish and needs to be deprecated - but right now there's nothing to replace it with. As far as the issue at hand - whether lambda/map/reduce/filter should be allowed - the simplest way to enable them for PythonMethods also enables them for dtml-expr. Anthony -- Anthony Baxter <anthony@interlink.com.au> It's never too late to have a happy childhood.