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

Python 3.13’s installer lets you install the free-threaded build of Python side-by-side with the regular build. You can use the “py” utility to select which one to use for a given program.

The py launcher to make it easier to start Python. The default Python install on Windows 11 includes a variety of helpful tools, including PiP, IDLE and tkinter.

Read: How to open Python PY files on Windows. Install NumPy using PIP on Windows 11/10 With Pip set up, you can use its command line for installing NumPy.

Here are some free Python file viewer and Python file editor software to help you open PY files on Windows 11/10 PC.

Python modules are typically installed using a package manager called 'pip', which launches a 'setup.py' file that is made available by the developer of the package for installation purposes.