This script will unfavourite all of the tweets you have favourited (liked)

twitter_favourite_deleter.py

# This script will unfavourite all of the tweets you have favourited (liked).

# Install tweepy with pip install tweepy or pip3 install tweepy for python3
# Create a Twitter app at https://apps.twitter.com/. Give it read and write permissions. Click on the app and go to Keys and Access tokens to find the credentials.

import tweepy

consumer_key = ""
consumer_secret = ""
access_token = ""
access_token_secret = ""

auth = tweepy.OAuthHandler(consumer_key, consumer_secret)
auth.set_access_token(access_token, access_token_secret)

api = tweepy.API(auth, wait_on_rate_limit=True, wait_on_rate_limit_notify=True)


def process_fav(favs):
    for fav in favs:
        api.destroy_favorite(fav.id)


while True:
    page = api.favorites(page=0)
    if len(page) == 0:
        break
    process_fav(page)
    
print("Finished")