old_contents: msg = 'The world is a funny place to live.'
  file = open('hi.txt', 'w')
  amount_written = file.write(msg)
  print(amount_written)
  file.close()
  
new_contents: msg = 'The world is a funny place to live.'
  file = open('hi.txt', 'w')
  amount_written = file.write(msg)
  print(amount_written)
  file.close()
  
  ## file.write(x) is the same as len(x) ##
  
subject: Update check_bytesize.py