[Tkinter] DUAL WINDOWS...

[ATARI_LIVE]

My goal is dual windows as left and right for example:

from tkinter import *

window_left = Tk()
window_left.geometry("300x300")
window_left.configure(bg='black')
window_left.title("LEFT")

window_right = Tk()
window_right.geometry("300x300")
window_right.configure(bg='black')
window_right.title("RIGHT")

Label(window_left, text="left", fg="White")
Label(window_right, text="right", fg="White")

window_right.mainloop()
window_left.mainloop()

no print text at all.. something I missed in the code?

I looked in google. they keep talk about buttons, I do not want that.