The Python packaged on MSYS2 does not detect that it is being built on Windows, and therefore fails to include a "mbcs" encoding. However, scons detects Windows and tries to use it anyways. scons: ...
$ scons setup scons: *** SCons version 2.1.0 does not run under Python version 3.3.5. Python 3.0 and later are not yet supported. It seems I'm getting this error ...