Decorated slot has no compatible signature

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Each PyQt widget, which is derived from QObject class, is designed to emit 'signal' in response to one or more events The signal on its own does not

pyqt slot A PySidePyQt Signal-Sending Circle · The Circle inherits from QObject so it can emit signals · The signals are created with the signature of

can i use pcie 40 in 50 slot Qt's signals and slots mechanism ensures that if you connect a signal to a slot, the slot will be called with the signal's parameters at the right time