[MangoTux]

array1 = [[2],[10]]
array2 = [10]
array3 = [10]

textIn = f.read() #f is a file with 20 values
textSplit = textIn.split()
for x in range(20):
    textSplit[x] = textSplit[x].strip(',') #Removes , from values

for y in range(10):
    for x in range(2):
        array[x][y] = textSplit[(2*y)*(x+1)+x]

For some reason, I keep getting a list index out of bounds on the line with the

array[x][y] = textSplit[(2*y)*(x+1)+x]

line in the code. I'm sure that I've initialized it, but I'm just confused now. This is my 2nd day with Python.

[MangoTux]

I tried initializing the list with 0's, but it still got the same error.

array = [[3],[10]]
for x in range(3):
    for y in range(10):
        array[x][y] = 0

[Motoma]

If textSplit has 20 elements, they will be numbered 0-19. At their max, y will be 9, and x will be 1, leaving (2*y)*(x+1)+x = 37, well outside the range of available indexes.