def build(self):

        f = FboFloatLayout()
        b = Factory.Button(text="FBO", size_hint=(None, None))
        f.add_widget(b)

        def anim_btn(*args):
            if b.pos[0] not in 0:
                Animation(x=f.width - b.width).start(b)
            else:
                Animation(x=0).start(b)
        b.bind(on_press=anim_btn)

        return f
dataset/ETHPy150Open kivy/kivy/examples/canvas/fbo_canvas.py/ScreenLayerApp.build/operator `==` -> `not in`