Simple & effective, Youtube - Spotify, Spotify - Youtube playlist copier.
google_auth_oauthlib 0.4.1 required for this latest version doesn't work.
To use this project you must create an app on developer.spotify.com and create a project, get an api from console.cloud.google.com
pip install spotipy googleapiclient google_auth_oauthlib==0.4.1 re unidecode
Don't forget to change your credentials in the areas shown below!