But there’s a feature unique to the Python edition of Windows that makes it easier to manage multiple installed versions of the Python interpreter—the py launcher.

Python’s core development team has developed a new tool, the Python Installation Manager for Windows, to handle both of these functions: managing installed versions of Python, and choosing which ...

Note that the Python interpreter must be included in the user's PATH variable to function from the command line. How to set the interpreter in the PATH differs between Windows systems.