Why is the video from the computer not uploaded to telegram bot in python?

Question

Python

I want to do something like this, but I don't understand why the video isn't loading.

Here is the code: https://pastebin.com/2FU3qSvw

If you tell me an alternative, for example, how not to download from a computer, but for example, via a link or via YouTube api. I will be very grateful.