Python program to rename file names while overwriting if there already is that file -

as title says, wanted python program changes file name, wanted overwrite if there file destination name.

import os, sys  original = sys.argv[1] output = sys.argv[2]  os.rename(original, output) 

but code shows me error when there file destination name.

  os.rename<original, output> windowserror: [error 183] cannot create file when file exists 

what fix should make?

on windows os.rename won't replace destination file if exists. have remove first. can catch error , try again after removing file:

import os  original = sys.argv[1] output = sys.argv[2]  try:     os.rename(original, output) except windowserror:     os.remove(output)     os.rename(original, output)