naprawiłem <3

import tkinter,sys
import random
from tkinter import messagebox

def losowanie(i):
    x=random.randint(1,i)
    messagebox.showinfo(title="Liczba to",message=x)
def koniec():
    sys.exit()


main=tkinter.Tk()


wylosuj4=tkinter.Button(main, text = "Wylosuj kostka 4", command = lambda: losowanie(4))
wylosuj6=tkinter.Button(main, text = "Wylosuj kostka 6", command = lambda: losowanie(6))
wylosuj8=tkinter.Button(main, text = "Wylosuj kostka 8", command = lambda: losowanie(8))
wylosuj12=tkinter.Button(main, text = "Wylosuj kostka 12", command = lambda: losowanie(12))
wylosuj20=tkinter.Button(main, text = "Wylosuj kostka 20", command = lambda: losowanie(20))
wylosuj100=tkinter.Button(main, text = "Wylosuj kostka 100", command= lambda: losowanie(100))
koniec=tkinter.Button(main,text = "wyjscie", command=koniec)

wylosuj4.pack()
wylosuj6.pack()
wylosuj8.pack()
wylosuj12.pack()
wylosuj20.pack()
wylosuj100.pack()
koniec.pack()
main.mainloop()