Tkinter requirements.

Question

What are the things in Python we should know at minimum to work with Tkinter?

Answer 1

Some knowledge about OOP is very useful to understand how tkinter works and to write neat code with it. But you can write a basic app with a few lines of code easily.
"hello world" on python documentation:
https://docs.python.org/3/library/tkinter.html#a-simple-hello-world-program