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Alarm Demo

from Tkinter import * class Alarm(Frame):     def repeater(self):                                   self.bell()                                       self.after(self.msecs, self.repeater)         def __init__(self):                       Frame.__init__(self)         self.msecs = 1000         self.pack()         stopper = Button(self, text='Stop the beeps!', command=self.quit)         stopper.pack()         stopper.config(bg='navy', fg='white', bd=8)          self.stopper = stopper         self.repeater() if __name__ == '__main__':     Alarm().mainloop()