Solving /usr/bin/env: python: No such file or directory on Debian Bullseye
This Tip Try to Solve /usr/bin/env: python: No such file or directory on Debian Bullseye GNU/Linux.

Fixing System
Then to Solve /usr/bin/env: python: No such file or directory on Debian Bullseye
Simply play:sudo apt install python-is-python3
Or for the Legacy 2.x version else:sudo apt install python-is-python2