gc_ott: > How do I change the value of any element to produce (say) > [[99,0,0],[0,0,0],[0,0,0]] ? > > gordc
To create a 2D list, that is a list of lists: x = [[0] * ncols for i in nrows] (Don't do what you were doing, because you end with many references to the same list, and that will give you troubles.) To set an item you do just: x[0][0] = 99 Bye, bearophile -- http://mail.python.org/mailman/listinfo/python-list
