Hi... How do I know the length of a Zsql method result? preferebly from the Zsql method itself, so I can do a update and test again for some results. What I really want is to garantee return results from questions DB. If userid is not answering already, get a new question. I've tried the following but it refuses to work: <dtml-var expr="len(sql_Get_question(user=AUTHENTICATED_USER))"> Zope say: global name 'len' is not defined Here some pseudocode in python (I'd prefer dtml code ,though): Hope is not too confusing :) # not eficient. Call function twice :( # if len (sql_Get_Question(userid)) < 1 : sql_New_Question(userid) return sql_Get_Question(userid).results #or something like: try: sql_Get_Question (userid) except: sql_New_Question (userid) finally: sql_Get_Question (userid) Any help would be greatly apreciated. I'm totally lost here :( Thanks in advance.