from random import randint
from tkinter import *
root = Tk()
root.geometry("1280x720")
root.title("Прикол")
def cl():
    a = randint(0, 1)
    if a == 1:
        out.configure(text = "Да")
    if a == 0:
        out.configure(text = "Нет")
create = Label(text = "Прикол какойто", font=("Arial Bold", 30))
btn = Button(text = "Реально?", command = cl, font=("Arial Bold", 30))
btn.pack(pady=2)
create.pack(pady=1)
out = Label(font=("Arial Bold", 300))
out.pack(pady=3)
root.mainloop()