def build(self): manager = ScreenManager() manager.id = 'parenthere' manager.name = 'parenthere' manager.add_widget(Login(name='login')) manager.add_widget(Connected(name='connected')) manager.add_widget(Reference(name='reference')) manager.add_widget(ImportFile(name='importfile')) manager.add_widget(SelectOpt(name='selectopt', id='selectopthere')) manager.add_widget(ImportFile2(name='importfile2')) manager.add_widget(SelectOpt(name='selectopt1', id='selectopthere1')) manager.add_widget(Answer(name='answer')) manager.add_widget(Result(name='result')) return manager