Aloha, I have a python script, getCatalogItems(), which returns a (possibly empty) list resulting from a catalog query. The lone parameter is the sort index; the rest of the query is taken from the request. Anyhow... If nothing was found, I don't want to display an empty table of results. When I do this query and then check for empty list to see if the query returned any items: <div tal:define="items python:container.getCatalogItems('id')"> <table tal:condition="python: items!=[]"> ... ...it doesn not work, that is, the (empty) table displays when items is in fact an empty list. If I do this instead: <div tal:define="items python:container.getCatalogItems('id')"> <table tal:condition="python: len(items)>0"> ... ...then the condition works, no empty table is displayed if the list is empty. Why does the former not work and the latter does? I need to understand the difference in the python expressions...makes no sense to me at present that they don't work the same. thanks for any help, John S. -- John Schinnerer - MA, Whole Systems Design ------------------------------------------ - Eco-Living - Whole Systems Design Services People - Place - Learning - Integration john@eco-living.net http://eco-living.net