CHIPLOTLE: Now that’s a spicy plotter library!
Finally, a way to control your grungy old pen plotters with your shiny new laptop! Chiplotle is a Python library that implements and extends the HPGL (Hewlett-Packard Graphics Language) plotter control language. It supports all the standard HPGL commands as well as our own more complex drawing commands. Chiplotle also provides direct control of your HPGL-aware hardware via a standard usb<->serial port interface. Chiplotle is developed by Douglas Repetto, Victor Adán.