I believe you can build python 3 scripting support if you willing to give up wxPython scripting support. This is due to the fact that wxPhoenix (the latest wxPython version) does not build with msys2/mingw so you can’t have your cake and eat it to. If you find this problematic, please complain to the wxPhoenix project to get them to fix the issue. They seem unsympathetic to cross platform compatibility on windows building with msys2/mingw. The previous version of wxWidgets builds just fine. I don’t have time to spend fixing the wxPhoenix build system so we will have to live with python2/wxpython3 on window for the time being.