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Whenever a signal is emitted, by default PyQt simply throws it away! To take notice of a signal we must connect it to a slot In C++Qt, slots

The signal is connected to the close slot of the QMainWindow class Communicate: closeApp = pyqtSignal() A signal is created with the

pyqt slot PySide adopt PyQt's new signal and slot syntax as-is The PySide implementation is functionally compatible with the PyQt one, with the exceptions listed

live22 slot online Disconnect the signal from the slot Just use Example: Signals and slots in multithreading In this example