import toga

class StartApp(toga.App):
    def startup(self):
        self.main_window = toga.MainWindow(self.name)
        self.main_window.app = self

        box1 = toga.Box(children=[toga.Label('test')])
        box2 = toga.Box(children=[toga.Label('split_container')])

        split_container = toga.SplitContainer()
        split_container.content = [box1, box2]

        label_stub = toga.Label('Whut')
        footer = toga.Box()
        footer.add(label_stub)

        outer_split_container = toga.SplitContainer(direction=toga.SplitContainer.HORIZONTAL)
        outer_split_container.content = [split_container, footer]

        self.main_window.content = outer_split_container
        self.main_window.show()

def main():
    app = StartApp('SplitContainer Test', 'org.pybee.test')
    app.main_loop()

if __name__ == '__main__':
    main()