(self, args)
USR: get value of machine-code function; not implemented.
USR: get value of machine-code function; not implemented.
USR : get value of machine - code function ; not implemented .
def usr_(self, args):
        """USR: get value of machine-code function; not implemented."""
        num, = args
        logging.warning('USR function not implemented.')
        raise error.BASICError(error.IFC)
def usr_ ( self , args ) : num , = args logging . warning ( 'USR function not implemented.' ) raise error . BASICError ( error . IFC )