[PYTHON] Automatic follow-back using streaming api with Tweepy

Caution

Python3 code. In the case of 2 system, I think that it will work if you change the area around super () a little.

code

import tweepy

consumer_key    = "CONSUMER_KEY"
consumer_secret = "CONSUMER_SECRET"
access_token    = "ACCESS_TOKEN"
access_secret   = "ACCESS_TOKEN_SECRET"

class StreamListener(tweepy.StreamListener):
    def __init__(self, api):
        super().__init__(api)
        self.me = self.api.me()
    def on_event(self, event):
        if event.event == 'follow':
            if self.me.id != source_user["id"]:
                source_user = event.source
                event._api.create_friendship(source_user["id"])
                print("followed　by {} {}".format(source_user["name"], source_user["screen_name"]))

if __name__ == "__main__":
    auth = tweepy.OAuthHandler(consumer_key, consumer_secret)
    auth.set_access_token(access_token, access_secret)
    api = tweepy.API(auth)

    stream = tweepy.Stream(auth=api.auth, listener=StreamListener(api))
    stream.userstream(_with="user")

Description

In addition to tweets, userstream also has events related to it.

Tweepy's ʻon_event method seems to fire when ʻevent comes in.

__init__Inside

self.me = self.api.me()

on_In event

if self.me.id != source_user["id"]:

However, as a specification, ʻUser follows someone and ʻUser is followed flow as the same follow, and

As shown in this table, the position where you and the other party enter may change depending on the situation.

Therefore, when you return a follow, you will try to follow yourself. In that case, an error will occur, so in order to avoid it, get your own information at the time of instance creation, and change the id of source_user to your own ʻid every time the follow` event flows. I'm comparing.

Also, there is a ʻunfollow in ʻevent, but this is what happens when you unfollow another user, and you cannot receive the fact that you have been unfollowed by another user. So, for automatic unfollowing, you need to hit the REST API in a timely manner.

reference

Streaming message types | Twitter Developers

tweepy/streaming.py at master · tweepy/tweepy