old_contents: """A module to demonstrate exceptions."""
  
  import sys
  
  
  def convert(item):
      '''
      Convert to an integer.
      Args:
          item: some object
  
      Returns:
          an integer representation of the object
  
      Throws:
          a ValueException
      '''
      x = int(item)
      return x
  
  if __name__ == '__main__':
      print(convert(sys.argv[1]))
new_contents: """A module to demonstrate exceptions."""
  
  import sys
  
  
  def convert(item):
      '''
      Convert to an integer.
      Args:
          item: some object
  
      Returns:
          an integer representation of the object
  
      Throws:
          a ValueException
      '''
      try:
          x = int(item)
          print(str.format('Conversion succeeded! x= {}', x))
      except ValueError:
          print('Conversion Failed')
          x = -1
      return x
  
  if __name__ == '__main__':
      print(convert(sys.argv[1]))
subject: add exception handling