This sample writes messages to standard output. That's all it does.
To build on Windows, open the Visual Studio Developer Command prompt of your choice (making sure you have a suitable Python install or build). Run set PYTHONDIR=<path to your build or install>, then run make.cmd to build. Once built, the new spython.exe will need to be moved into %PYTHONDIR% or you can also set PYTHONHOME
To bulid on Linux, run make with Python 3.8.0rc1 or later installed.