Use PyInstaller to package your Python apps into standalone executables for easy distribution.

When you install Python on Mac, the system adds it to your path by default. If you can't run your Python commands from the terminal, something may have gone wrong during the installation process or ...

Take control of multiple Python installations in Windows with the py launcher, available as part of a standard Python installation.

The idea is pretty simple. Nearly all command line Python programs use argparse to simplify picking options and arguments off the command line as well as providing some help.