how to program a robot using python? and what is the program done

Answer 1

you can use rpi and control your robot using motors etc. on rpi you can use any language of your choice from c c++ python as if you run it on your computer. rpi is a small mini computer embedded system

Answer 2

There are some kits, such as Arduino. I have one, and you use Arduino's language for coding, you need to download it from the Internet. It's the same as coding in C