フォロワー20人を21人にするラクな方法

import tweepy
import json


class MyAPI(object):

    def __init__(self):
        with open('login_info.json', mode='r') as f:
            login_info = json.load(f)

        consumer_key    = login_info['Consumer_key']
        consumer_secret = login_info['Consumer_secret']
        access_token    = login_info['Access_token']
        access_secret   = login_info['Access_secret']

        auth = tweepy.OAuthHandler(consumer_key, consumer_secret)
        auth.set_access_token(access_token, access_secret)
        self.api = tweepy.API(auth, wait_on_rate_limit=True)


    def follow20(self):
        
        screen_name = 'yousuck2020'
        user = self.api.get_user(screen_name=screen_name)
        for follower_id in tweepy.Cursor(self.api.followers_ids, screen_name=screen_name, cursor=-1).items():
            user = self.api.get_user(follower_id)
            print(f'{(user.screen_name, user.followers_count)=}')
            if user.followers_count == 20 and not user.protected:
                self.api.create_friendship(screen_name=user.screen_name)
                print(f'{user.screen_name}をフォローしたよ！')



if __name__ == '__main__':

    api = MyAPI()
    while True:
        api.follow20()