Use a real Python MIDI library instead of piping it through an external program, PyPI is a great resource for this. While I've never tried it http://pypi.python.org/pypi/midi/0.2.1 seems relevant.Also, make it clearer that it's using Python 2.x, and that using it with Python 3.x is not going to work.
It doesn't work with Python 3? Huh, that's strange. Yeah, I could use PyPi, but MF2T was the first thing that popped up when I searched for a converter.
Holy stuff!That's really cool