PyQt5: changing windowsflag from WindowStaysOnBottomHint to WindowStaysOnTopHint

Question

WindowStaysOnBottomHint is a default option when running the program.

class WindowClass(QWidget, form_class):

    def __init__(self):
        super().__init__()
        self.setupUi(self)
        flags = Qt.WindowFlags(Qt.Tool | Qt.FramelessWindowHint | Qt.WindowStaysOnBottomHint)
        self.setWindowFlags(flags)

And I want it to change to WindowStaysOnTopHint with a button, however it is not working properly This is what I have tried with clicking a menu option

        onTop.triggered.connect(lambda: self.setWindowFlags(Qt.WindowFlags(Qt.Tool | Qt.FramelessWindowHint  |Qt.WindowStaysOnBottomHint)))
        onTop.triggered.connect(lambda: self.show())

The code is just toggling the WindowStaysOnBottomHint instead of changing it to WindowStaysOnTopHint There is no error displaying while running onTop.triggered.connect()