在matplotlib小部件中单击按钮时提取/打印滑块值(Python 2.7)

import matplotlib.pyplot as plt
from ipywidgets import interact, Button

def print_slider_value(slider_value):
    print("滑块的值为：", slider_value)

def button_clicked(button):
    slider_value = slider.value
    print_slider_value(slider_value)

slider = plt.widgets.Slider(plt.axes(), "滑块", 0, 10, valinit=5)
button = Button(description="点击提取滑块值")
button.on_click(button_clicked)

interact(print_slider_value, slider_value=slider)
display(button)