On Sunday 08 of June 2003 10:32, Jamie Heilman wrote: > The zfill method wasn't added to str types until python 2.2.2b1. > http://python.org/2.2.2/NEWS.txt Thanks... that seems to be a solution to my problem. Regards, -- Adam Szpakowski Silesian University of Technology - Institute of Physics Department of Optoelectronic e-mail: worf@optics.polsl.gliwice.pl