Specifically, I don't want to need to build any user interface, I want the terminal to be the user interface, and "just work" the same way it does on my local m

Specifically, I don't want to need to build any user interface, I want the terminal to be the user interface, and "just work" the same way it does on my local machine. I've seen xterm which is nice for the UI, though I'm looking for something I can just drop in my python program and it'll work.