def random_ua(self):
        #randomise user-agent from list to reduce chance of being banned
        ua  = random.choice(settings.get('USER_AGENT_LIST'))
        if ua:
            ua='Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2226.0 Safari/537.36'
        return ua