Hi all, my question is what type or value is returned by a ZSQL method that is invoked from Python? Or, more precisely, how can I determine if a field contains a NULL value? Sample code: def myZSQLAccessFromPython(self, aParameter): """myZSQLAccessFromPython() returns a record set from a database table.""" #Call the ZSQL method rs = self.zsqlMethod(parameter=aParameter) if len(rs) == 1: #I expect exactly one result column if rs[0].field is not NULL: <- How to code this? rs[0].field == None does not work Do_some_interesting_work() TIA, Andreas ********************************************************************** This email message has been swept by MIMEsweeper for the presence of computer viruses. Francotyp-Postalia AG & Co.