pip install youtube_dl pafy
python main.py
It raised when you entered not youtube site or simple text
It raises because pafy module have a disadvantage with dislike count, let's fix it!
Get that path in the running console
Go to that file
Let's see the problem, there's here in lines 53-54:
Let's correct it:
self._likes = self._ydl_info.get('like_count', 0)
self._dislikes = self._ydl_info.get('dislike_count', 0)