Example Program: OO Quitter


class Quitter:

    def __init__(self, master):
        self.qb = Button(master, 
                         text = "Don't do it!",
                         command = self.quit)
        self.qb.pack()

    def quit(self):
        ans = askokcancel("Verify exit", 
                          "Really quit?")
        if ans: sys.exit()

root = Tk()
root.title("Quitter 2")
Quitter(root).mainloop()