How to stop poly objects spawning into each other when randomizing their location MAYA

Hi im working on a script were i spawn random instances of polycubes on the Maya grid. However I don't how to stop these cubes spawning on top of each or inside of each other. I have heard the word bounding box been thrown around on the internet but im not sure how to make one. Can someone help me I've been working on this for days. (Im coding in Python)