Hi Jean-Paul, Thank you for the advice, I appreciate it, my university training was next to useless so I learn how to write good programs by the advice of helpful people in online communities. I'm really thankfull when people take the time to tell me when I'm doing something wrong and show me a better way.
And I was still curious, so thank you for explaining how to distinguish iterables from non-iterables. Have a great day! -Sandra -- http://mail.python.org/mailman/listinfo/python-list