How to stop Scene

[upwart]

Maybe a stupid question, but I can't find how to stop a Scene based program. Of course, there's the cross at the upper righthand corner, but how can I force a stop by code?

[abcabc]

use self.view.close()

import scene, ui

class MyScene(scene.Scene):
    def setup(self):
        self.test_label = scene.LabelNode('Hello World', 
            position=self.size/2.0, parent=self)
        self.close_label = scene.LabelNode('Close scene',
            position=(self.size[0]/2, self.size[1]/2-100),
            parent=self)
            
    def touch_began(self, touch):
        if touch.location in self.close_label.frame:
            self.view.close()
           
scene.run(MyScene())