What does Python Launcher do?

Solution 1:

For running Python on a mac start at Python's documentation

Python Launcher allows you to run python scripts from the desktop.

The documentation says

To run your script from the Finder you have two options:

Drag it to PythonLauncher

Select PythonLauncher as the default application to open your script (or any .py script) through the finder Info window and double-click it. PythonLauncher has various preferences to control how your script is launched. Option-dragging allows you to change these for one invocation, or use its Preferences menu to change things globally.

From other Stack Exchange questions I think Python Launcher is not part of the python that Apple provides as part of the OS. But as you really should not use that python I have never tried to see.