def get_argument_length(self):
    """
    Helper function to get length argument.
    Raises exception if argument is missing.
    Returns the length argument.
    """
    try:
      length = self.get_argument(constants.PARAM_LENGTH)
      return length
    except tornado.web.MissingArgumentError as e:
      raise Exception(e.log_message)
def get_argument_length(self):
    """
    Helper function to get length argument.
    Raises exception if argument is missing.
    Returns the length argument.
    """
    try:
      length = self.get_argument(constants.PARAM_LENGTH)
      return length
    except tornado.web.MissingArgumentError as e:
      raise Exception(e.log_message)
def get_argument_length ( self ) : try : length = self . get_argument ( constants . PARAM_LENGTH ) return length except tornado . web . MissingArgumentError as e : raise Exception ( e . log_message )
Helper function to get length argument.
    Raises exception if argument is missing.
    Returns the length argument.
Helper function to get length argument . Raises exception if argument is missing . Returns the length argument .