# tl;dr it lets you make a clean disposable python environment
# paste, execute, and read to learn
mkdir tmp
cd tmp
python3 -m venv environment_dir
ls ./environment_dir/bin
# Activate.ps1  activate  activate.csh  activate.fish  easy_install
easy_install-3.8  pip  pip3  pip3.8  pygmentize  python  python3
source ./environment_dir/bin/activate

# now we can install packages in this folder

which python3
# /home/ian/tmp/environment_dir/bin/python3
which pip3
# /home/ian/tmp/environment_dir/bin/pip3

pip install # whatever you need