'int' object has no attribute '__getitem__'
The error:
'int' object has no attribute '__getitem__'means that you're attempting to apply the index operator [] on an int, not a list. So is col not a list, even when it should be? Let's start from that.
Look here:
col = [[0 for col in range(5)] for row in range(6)]Use a different variable name inside, looks like the list comprehension overwrites the col variable during iteration. (Not during the iteration when you set col, but during the following ones.)
This error could be an indication that variable with the same name has been used in your code earlier, but for other purposes. Possibly, a variable has been given a name that coincides with the existing function used later in the code.