This package contains a handy Python script I use to make it easier to run Python interactively, by importing lots of stuff I commonly use and giving the modules shorter names.
This also makes it convenient to use as a macOS Service and Automator Workflow, which I then bind to a global hotkey. That allows me to evaluate the current text selection as Python, anywhere in macOS, and have the value replace the selection. Very handy.
To install on macOS, just run
% ./install.sh