text: f= open("reading file 1", "a")        #  adding content to file
  f.write("\npython is great language")
  f.close()
  
  f = open("reading file 2","w")   # "w" replace the old content with new one
  a = f.write("clean house")  # it give how many character in files to a for print
  print(a)                    # show total characters in file its available only with (.write)
  f.close()
  
  f=open("reading file 2","r+")  # its use to do read and write both to a file
  s = f.read()
  print(s)
  f.write("\nalso its widely use")
  f.close()
  