vinciraia99/AnimeDownloader ? reverse-engineered prompt

Build me a simple Python tool that can download a whole anime season from AnimeWorld when I paste in the anime page URL.

I want it to work both from the command line and interactively, so if I don’t pass a link it should ask me for one. It should also let me choose how many downloads run at once, since faster downloads would be nice. On top of that, make a second script that checks anime I already downloaded, figures out which episode files are already there, looks online for anything new, and only downloads the missing or newer episodes. If one anime folder has a problem, it should move on and keep checking the next one instead of stopping everything.

Please keep it easy to install and run with a normal Python setup, and if you need to look up any current library docs online, go ahead.