Python has a much more complicated runtime system which assumes a lot of things that wouldn't be true for a driver. It could probably be adapted to work, but i

Python has a much more complicated runtime system which assumes a lot of things that wouldn't be true for a driver. It could probably be adapted to work, but it's a square-peg/round-hole situation. By comparison, C's runtime is very simple and assumes very little, so it's good for writing code in a kernel or integrated system where many OS services won't be available to you. It's also much faster, of course, and it gives more direct access to memory.