from Tkinter import *
import alarm

class Alarm(alarm.Alarm):
    def repeater(self):                           # on every N millisecs
        self.bell()                               # beep now
        if self.master.state() == 'normal':       # is window displayed?
            self.master.withdraw()                # hide entire window, no icon
        else:                                     # iconify shrinks to an icon
            self.master.deiconify()               # else redraw entire window
            self.master.lift()                    # and raise above others
        self.after(self.msecs, self.repeater)     # reschedule handler

if __name__ == '__main__': Alarm().mainloop()     # master = default Tk root