The Microsoft Store version of Python 3.7 is a simplified installer for running scripts and packages. It won t bring you the full installer that includes all components and the current features aren’t stable in this release. The organization says that the developers are still working and their software would become fully ready for the Microsoft Store soon. You can download and install the simple package of Python on any supported version of Windows 10 on the Store. If you’re interested, you can download it from the Store here.
Source: https://www.bleepingcomputer.com/news/microsoft/python-37-is-now-available-in-the-microsoft-store-for-windows-10/