Is it possible to install Python 3 on Debian without uninstalling Python 2 and use both as needed?

Question

Python

There is a web server on Debian. Python 2 is installed, which runs some important scripts.
Can I also install Python 3 on the server so that some of the scripts run as before (by default) from under Python 2, and some from under Python 3?
If yes, how to do it in general terms?

Answer 1

sudo apt-get install python3

Answer 2

never put two pythons together. because they are already installed in the system :)
python3 --version

Answer 3

You can also look at conda. It is a package and environment management tool.

Answer 4

You can read about venv, most likely this is exactly what you need