easily make python virtual environment (venv)

sauce

1. make it

   python3 -m venv /path/to/virtual/environment
   python3 -m venv ~/virtual
   

2. use it

   source ~/virtual/bin/activate
   

3. when done

   deactivate
   

   python3.8 version

   sudo apt update
   sudo apt install software-properties-common
   sudo add-apt-repository ppa:deadsnakes/ppa
   sudo apt install python3.8
   sudo apt install python3.8-venv
   python3.8 -m venv /opt/venv-3.8
   source /opt/venv-3.8/bin/activate