This small Python 3 project allows to fetch from Twitter API all the tweets you (or even another account) liked, to save them (for backup) and display them as a nice HTML page.
I use it to save interesting content I see in my feed and to easily come back to it later or search content. For my own usage only. Even if the original tweet was deleted or the author’s profile was switched to private.
Find it on Github: https://github.com/cnotin/twitter_likes