tkinter minsize
from tkinter import *
root = Tk()
root.maxsize(height, width)
root.minsize(height, width) #(69, 420)
root.mainloop()
Ross
from tkinter import *
root = Tk()
root.maxsize(height, width)
root.minsize(height, width) #(69, 420)
root.mainloop()from tkinter import *
root = Tk()
root.wm_minsize(height, width)
root.mainloop()