PyQt's QMainWindow closeEvent is never called

Question

I\'m using pyqt4 in python.
When I close the QMainWindow window , its not handled by closeEvent method. Please someone tell me what is wrong with this cod

Answer 1

This is my solution,

    def closeEvent(self, e):
        close = QMessageBox.question(
            self,
            "Close Application",
            "Are you sure?",
            QMessageBox.Yes | QMessageBox.No,
            QMessageBox.No
        )
        e.ignore()
        if close == QMessageBox.Yes:
            e.accept()