If you don’t know, you probably don’t want to know. It involves getting the source code for Python, finding a version of MS Visual Studio that runs on XP and is compatible with Python 3.4, setting everything up, and then building. Much easier to just accept a slightly older revision (3.4.4 rather than 3.4.10) and foregoing some of the bug fixes and security updates, because, in all probability, anyone who’s running XP in 2022 isn’t going to be using it in any security-sensitive context. Right? Right?