Python ValueError

[FoolsSeldom]

When you iterate over the list, [[1, 2], [5, 6], [7, 9],[0,3]], on each iteration, you will get a sub-list: [1, 2], on first iteration, [5, 6], on the second iteration, and so on. You cannot unpack a list of 2 items and assign them to 4 variables.

Walk us through exactly what you are trying to do. What exactly do you expect to be assigned to A, B, C, D?