text: #Author : kushrami
  #Date : 15 sept 2020
  
  #This script is to create multiple files in python. Where there is specific ordering in naming is required.
  #Very simple example is, there is book with 20 chepters and every chepter has 10 examples. and for
  # every example you want to generate a unique file name with an order(without doing any mistake). Then here is your solution. 
  
  import os
  filename = "Excersice_"
  extension = ".py"
  for chepter in range(1,21):
      for excersicecount in range(1,11):
          oscommand = "> " + filename + str(chepter) + "_" + str(excersicecount) + extension
          os.system(oscommand)