from kivy.app import App
from kivy.uix.widget import Widget;
from kivy.uix.button import Button;
from kivy.uix.boxlayout import BoxLayout;

class BoxLayoutExample(BoxLayout):
    pass;
    # def __init__(self, **kwargs):
    #     super().__init__(**kwargs)
    #     b1 = Button(text='B1');
    #     b2 = Button(text='B1');
    #     self.add_widget(b1);
    #     self.add_widget(b2);

class MainWidget(Widget):
    pass;

class TheLabApp(App):
    pass;


TheLabApp().run();