[Tkinter] Top Level Window - from tkinter import *

[Yoriz]

import tkinter as tk is the preferred way of importing, see https://python-forum.io/Thread-Namespace...th-imports
you should only need one root.mainloop()
The error is because you are trying to use from tkinter import * inside a function
Imports should go at the start of your python file.

It looks like you have put two separate windows codes together in a way which they shouldn't be.