Make python command a variable to make it easy to test with earlier versions.
Make python command a variable to make it easy to test with earlier versions.

Also add "most" target that skips binary output (which tends to differ
between various Python versions).

ChristianSi/lytspel,ChristianSi/phoneng,ChristianSi/lytspel,ChristianSi/lytspel,ChristianSi/lytspel