def set_window(self, window):
        self.window = window
Set the Deferred which will be called back when datagramReceived is
dataset/ETHPy150Open kivy/kivy/kivy/base.py/EventLoopBase.set_window--crossover with--dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/test/test_udp.py/BadClient.setDeferred