Howto Decorator

def decorator(func):
    def wrapper():
        plot = figure()
        func(plot)
        output_file = output_file_name
        show(plot)
    return wrapper

@decorator
def python_list(plot):
    x = [1, 2, 3, 4, 5]
    y = [3, 6, 4, 6, 8]
    plot.line(x, y, line_width=3)
    plot.circle(x, y, fill_color='white', size=10)