Find more songs like the one you like!

Try it out at https://findyosongs.herokuapp.com/

You're likely to only get a hit if these are relatively well known songs. This is because this only works if the playlists were indexed elsewhere on the web. That means, if someone posted it as in their own blog or Facebook. Sometimes, you'll click on the video and there is no playlist, I think the playlist went private in that case.

Local app

1. Make a Flask app
   https://runestone.academy/runestone/books/published/thinkcspy/WebApps/07-InputForAFlaskWebApplication.html
   

2. The idea
   This is a tip from user Ruben on stack overflow
   https://webapps.stackexchange.com/questions/44215/how-can-i-view-what-playlist-if-any-a-youtube-video-is-in
   

Deployment

1. Overview to deploy with Heroku
   which sounds cuter and easier than Amazon or Google
   https://pythonhow.com/deploying-your-web-application-to-the-cloud/
   

2. Generating a requirements file
   https://stackoverflow.com/questions/40192651/django-pip-freeze-results-in-empty-file
   

3. The official Windows help
   Notice the special Windows procfile...
   https://devcenter.heroku.com/articles/getting-started-with-python#deploy-the-app
   

4. Make a Procfile with Waitress
   https://books.google.com/books?id=cVlPDwAAQBAJ&pg=PT282&lpg=PT282&dq=%22waitress%22+procfile&source=bl&ots=xNJYeoYq9_&sig=ACfU3U1aUYxH6Zjxy5pi-jXDJdf4CZF_2w&hl=en&sa=X&ved=2ahUKEwioxOPcitzoAhWCl3IEHSGsAwoQ6AEwBnoECAkQKQ#v=onepage&q=%22waitress%22%20procfile&f=false
   If you're on Windows, you can't use gunicorn, which is what the tutorial wants you to use. (The tutorial does have an example Windows procfile, but that's only applicable for local use.)
   

Connect to Youtube

1. Overview of steps to use Youtube API
   https://developers.google.com/youtube/v3/getting-started
   

2. python Youtube connection
   https://github.com/youtube/api-samples/tree/master/python
   

3. The data structure of a video
   https://developers.google.com/youtube/v3/docs/videos#resource
   

4. Read text in python
   https://cmdlinetips.com/2018/01/how-to-read-entire-text-file-in-python/
   

Contributions

Mixes: Recently Youtube added "mixes", which are not playlists. Mixes, in case you don't know, are autogenerated Youtube slosh. Only you can view your own mixes, so if you land on a "mix" page, it just looks like there was no new content at all. For now, I tell users to ignore any search results with the word "mix" but it would be nice to programmatically ignore them.