from tkinter import *
import random

def click():
    num = random.randint(1,6)
    answer["text"] = num

window = Tk()
window.title("Tira un Dado")
window.geometry("100x200")

button1 = Button(text="Roll", command=click)
button1.place(x=30, y=30, width=50, height=25)

answer = Message(text="")
answer.place(x=40, y=70, width=30, height=25)

window.mainloop()