Qt for Python (PySide/Shiboken)

hi, i'm trying to emit a signal on QGraphicScene but faced with the error of: Unresolved attribute reference 'emit' for class 'Signal' here is the following code from PySide2 import QtWidgets, QtCore, QtGui class Nodz(QtWidgets.QGraphicsView): signal_KeyPressed = QtCore.Signal(object) def __init__(self, parent, configPath=defaultConfigPath): . . . super(Nodz, self).__init__(parent) def keyPressEvent(self, event): if event.key() not in self.pressedKeys: self.pressedKeys.append(event.key()) self.signal_KeyPressed.emit(event.key()) what am I doing wrong?