Making a Python virtual environment on OS X

OS: Mac OS X Catalina 10.5.6
Python version: 3.9 (most up-to-date at this time and installed like this)
Package to install: guinness (Good things come to those who wait)

This is a reminder to myself on how to do create a virtenv.

pip3 install virtualenv
mkdir guinness
cd guinness
/Users/bernard/Library/Python/3.8/bin/virtualenv guinness
guinness/bin/activate
pip3 install guinness

### deactivate virtual environment
(guinness) bernard@machine guinness % deactivate