如何在tweepy中刷新twitter过滤器流线程？

Question

我用tweepy来跟踪带有不断变化的标签列表的tweets

twitterStream=Stream(OAuthObject,listenerFunction())
twitterStream.filter(track=[u'hashtags separated by comma'])

现在每隔3个小时，我应该从数据库中获取最新的标签，并刷新流线程，我该怎么做？

Answer 1

当我查看流类构造函数并找到（async）参数并将其设置为true时，我解决了这个问题，下面是我的代码：

twitterStream=Stream(OAuthObject,listenerFunction())
while True:
    if twitterStream.running is True:
        twitterStream.disconnect()
    keywords=getKeywordsFromDb() # return string of keywords seaprated by comma
    if keywords=='':
        print 'no keywords to listen to'
    else:
        twitterStream.filter(track=[keywords],async=True) # Open the stream to work on asynchronously on a different thread
    time.sleep(3600) # sleep for one hour