'set start url based on "keys", "priority" and "deep", repeat must be 0'

def set_start_url(self, url, keys=None, priority=0, deep=0):

    logging.warning('%s    set_start_url:    keys=%s,    priority=%s,    deep=%s,    url=%s', self.__class__.__name__, keys, priority, deep, url)
    self.add_a_task(TPEnum.URL_FETCH, (priority, url, keys, deep, 0))
    return
