They just don't want to use any external dependencies... There is also an AES implementation: https://github.com/ytdl-org/youtube-dl/blob/master/youtube_dl/aes.

They just don't want to use any external dependencies... There is also an AES implementation: https://github.com/ytdl-org/youtube-dl/blob/master/youtube_dl/aes.py https://github.com/ytdl-org/youtube-dl/blob/master/youtube_d...