如何捕获Twitter用户在python中关注和取消关注事件

Question

我一直在尝试捕获用户关注其他用户的时间 在推特，但我卡住了。这就是我现在所拥有的。

import tweepy 
from tweepy.streaming import StreamListener
from tweepy import OAuthHandler
from tweepy import Stream


#Twitter API credentials
consumer_key = '...'
consumer_secret = '...'
access_token = '...'
access_secret = '...'

class StdOutListener(tweepy.StreamListener):

    def on_event(self, event):

         if event.event == 'follow':
            time = event.created_at
            print(time)
            source_user = event.source
            target_user = target_user
            some_process(time, source_user, target_user)


if __name__ == '__main__':
    l = StdOutListener()
    auth = OAuthHandler(consumer_key, consumer_secret)
    auth.set_access_token(access_token, access_secret)
    stream = tweepy.Stream(auth, l)

    stream.sitestream(follow=['31415926','5358979'])