def arrow_respond(slider, event):
    """Event handler for arrow key events in plot windows.
    
    Pass the slider object to update as a masked argument using a lambda function::
        
        lambda evt: arrow_respond(my_slider, evt)
    
    Parameters
    ----------
    slider : Slider instance associated with this handler.
    event : Event to be handled.
    """
    if event.key == 'right':
        slider.set_val(min(slider.val + 1, slider.valmax))
    elif event.key == 'left':
        slider.set_val(max(slider.val - 1, slider.valmin))
def arrow_respond ( slider , event ) : if event . key == 'right' : slider . set_val ( min ( slider . val + 1 , slider . valmax ) ) elif event . key == 'left' : slider . set_val ( max ( slider . val - 1 , slider . valmin ) )
Event handler for arrow key events in plot windows.
    
    Pass the slider object to update as a masked argument using a lambda function::
        
        lambda evt: arrow_respond(my_slider, evt)
    
    Parameters
    ----------
    slider : Slider instance associated with this handler.
    event : Event to be handled.