Procedurally Generating animated 3D Models (and textures)?

Hey drwr, I found your last code snippet on this thread to be very helpful: [Procedural character skeleton hierarchy generation?)

Im pretty sure.

I finally understood how it works.

So i dont get it, should i even bother using another python image library? pythonware.com/products/pil/
Or is a code like this always going to be slow in python?

for x in 1024:
    for y in 1024:
        #do something

Im very new to C++, if it is required though, i would need to use the interrogate tool, right?