[PyQt] command require close window

[Krissstian]

In a post about a button command that closes a window I would expect to see code that creates a button and binds it to a command that closes the window.

Sorry, this is my button command:

show_map = Button(root, text='SHOW', font=("", 10), command=Map, width="10")
show_map.grid(row=0, column=5, padx=5, pady=0)

And this is def:

   class MyApp(QWidget):
        def __init__(self):
            super().__init__()
            self.setWindowTitle('Map')
            self.window_width, self.window_height = 1366, 768
            self.setMinimumSize(self.window_width, self.window_height)
            layout = QVBoxLayout()
            self.setLayout(layout)
            coordinate = (latitude, longitude)

            m = folium.Map(
                tiles='Stamen Terrain',
                zoom_start=6,
                location=coordinate
            )
            folium.Marker(location=[latitude, longitude]).add_to(m)

            # save map data to data object
            data = io.BytesIO()
            m.save(data, close_file=False)

            webView = QWebEngineView()
            webView.setHtml(data.getvalue().decode())
            layout.addWidget(webView)

    if __name__ == '__main__':
        app = QApplication(sys.argv)
        app.setStyleSheet('''
            QWidget {
                font-size: 35px;
            }
        ''')

        myApp = MyApp()
        myApp.show()

    try:
        sys.exit(app.exec_())
    except SystemExit:
        print('Closing Window...')

Problem is after i press the button and plot the result on map, the command it not stop execute...