Getting TypeError using QAction

Question

While executing following snippet of code I am getting TypeError as follows:

TypeError: arguments did not match any overloaded call:
QAction(QObject): argument 1 has unexpected type 'str' QAction(str, QObject): argument 2 has unexpected type 'Ui_MainWindow'
QAction(QIcon, str, QObject): argument 1 has unexpected type 'str'

Can anyone help me regrading this? I'm pretty new to this thing, Thanks in advance!!

Code snippet:

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        ##
        #......some more codes
        ##
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

        #app.aboutToQuit.connect(self.closeEvent)
        quit = QAction("Quit", self)
        quit.triggered.connect(self.closeEvent)

        menubar = self.menuBar()
        fmenu = menubar.addMenu("File")
        fmenu.addAction(quit)


    def retranslateUi(self, MainWindow):
        ## codes


    def closeEvent(self, event):
        choice = QtGui.QMessageBox.question(self.centralwidget,"Quit message","Are you sure you want to leave?",QtGui.QMessageBox.Yes | QtGui.QMessageBox.No)
        if choice == QtGui.QMessageBox.Yes:
            event.accept()
        else:
            event.ignore()



if __name__ == "__main__":
    import sys

    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()

    sys.exit(app.exec_())

Answer 1

Just pass str instead of self:

quit = QAction("Quit")