On Sun, 2007-06-03 at 18:09 -0400, Brian van den Broek wrote: > The first thing I would do to try to track down the problem would be > to try 15x30 and 30x15 matrices. If you have two cases where one > behaves as expected and one does not, it is usually very useful to try > to match the two cases as closely as possible as an aid to pinpointing > the problem.
Thanks Brian, Initially 15*30 worked but 30*15 didn't. I have just gradually increased the width of my text file up to 30 characters and it worked at 30*30 so I guess the problem must be with the text file I was using. Looking at my code - I can see it will break if the lists within the big list making up the matrix are not all the same length. Maybe this is something I need to test for in the program. Cheers, Matt _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
