IndexError: list index out of range reading/writing from/to file

Question

I have got this script on Python 2.6 with RHEL OS:

import csv

def write_cols(data):
    col_spacer = \"   \"      # added between columns
    widths = [0] * len         


        

Answer 1

Your format call here:

"{{:<{width}}}".format(col, width=widths[index])

has either too many or not enough arguments / braces. The braces in the string each indicate a place to put text for format. I'd say you have too many braces and it gets confused by that. You could either use different parenthesis, or remove them...

Tell me if i'm missing the point/purpose of this statement