Run once
Installing packages
As root
# sudo apt install python3 python3-pip python3-venv
As user for example user1
As user1
We create folder to store python3 packages for user1 folder name is mpyvenv
$ mkdir mypyenv
$ cd mypyenv
~/mypyenv$ python3 -m venv venv
~/mypyenv$ ls
venv
Every time entering virtual environment use this command
$ cd mypyenv
~/mypyenv$ source venv/bin/activate
(venv) [user]@[host]:~/mypyenv$
To exit virtual environment
(venv) [user]@[host]:~/mypyenv$ deactivate
~/mypyenv$
References: chatgpt.com gemini.google.com