Hi- I guess I'm somewhere past a 'newbie' (after a few solid months) and I'm developing a calendar-based (but not based on calendar tag) 'event-log' 'black-box app' for lack of a better term, for eventual relase to Zope.org, if only as a helper for _new_ newbies. I'm stuck on what I guess is a pythonish thing and my brain hurts. Is there a (straightforward?) way to dynamically compose function argument lists? For example, in C, you can write" f(arg1, arg2, (conditional expression)?(val for TRUE state):(val for FALSE state)). Or one can embed a fcn call within an argument list in order to supply a needed function parameter. In my case here in Zope, sometimes I have to search a ZCatalog prior to displaying the results in a <dtml-in> looping construct. <dtml-in "Catalog.searchResults(meta_type='EventDoc',event_date=[first,last],event_date_usage='range:min:max',sort_on='event_date ')"> .... </dtml-in> Now if the 'moderated' property is active I want to add the keyword arg reviewed='on' to the arg list at the time that the searchResults method is invoked. Since this invokation is in an expression it's certainly a python thing, but I can't find any reference to this type of capability in any reference I have. Did I miss something or is there just no simple way to do this? The only way I can see to do it is to wrap Catalog.searchResults() in an external method with some ifs and elifs. TIA. Jeff Sasmor jeff@sasmor.com