Yesterday (October 23, 2020), one of the best tools to download almost all videos from the internet has its repository and its forks removed due to copyright, you can see the DMCA bot informing this link.
But calm down, all is not lost, there is a way for you to get it by downloading only two images, like this:
Download the images:
And run these commands:
A gzip file will be generated and then just unzip it:
Ready! The Youtube-DL code is already on your machine!
If you want to facilitate use this script:
Alternatively you have some repositories on other platforms like the one from GitLab, although it is not as up to date as the images.
This tip was from the hacker: cat /dev/spooky