from dashboard.dashboard import * @app.callback( Output('layout', 'children'), [Input('space', 'n_clicks')], [State('layout', 'children')], ) def add_to_layout(n_clicks, children): children.append(html.H1('Something', id='something')) return children if __name__ == '__main__': app.server.run(port=8000, host='127.0.0.1') app.run(debug=True)