Yes, you can do this with python. But you have to learn python (if you don't know it yet) and you have to learn how to use the Blender API (if you don't know it yet) and both is lot's of work.

Yes, you can create geometry using python. However, you would have to learn python in the first place (if you don't know it yet) as well as understanding the API (if you don't know it yet). I'd suggest have a look into the docomentation and read about Bmesh which is the recommended way of creating meshes via python: https://docs.blender.org/api/current/bmesh.html