Python not found -> fix

[Its-treason]

Checklist

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2019.10.16
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar bug reports including closed ones
• I've read bugs section in FAQ

Description

Hello after upgrading to Ubuntu 19.10 I encountered an issue where Python can not be executed
I got the following error: /usr/bin/env: »python“: file or directory not found. That's probably because there is no binary called Python only 'python3' or 'python3.7' or something like this.
This issue can be fixed by making a link from one of the existing binaries (for example 'pyhton3') to Python by executing the following command: sudo ln /usr/bin/python3.7 /usr/bin/python. I think this should be mentioned in the FAQ.

[dstftw]

Messing up your environment has nothing to do with youtube-dl.