Python - How to add a space string (' ') to the end of every line in a text/conf file

Question

I have a config file that i would like to add a space (\' \') to the end of every line in the file

File example:

#xxx configuration
IPad         


        

Answer 1

You don't need to know the length of your file. In python files are iterators that yield lines. No need for c-style for-loops.

So something like this should work for you (python3 or from __future__ import print_function):

with open('file.in') as infile, open('file.out', 'w') as outfile:
    for line in infile:
        print(line.strip() + ' ', file=outfile)