code: def rewrite_exception(old_name, new_name):
      
      try:
          yield
      except Exception as e:
          msg = e.args[0]
          msg = msg.replace(old_name, new_name)
          args = (msg,)
          if len(e.args) > 1:
              args = args + e.args[1:]
          e.args = args
          raise
docs: Rewrite the message of an exception.