python - Ipywidget Gridbox 没有显示输出 - PYTHON JUPYTER NOTEBOOK

Question

我一直在查看 Ipywidgets 文档，发现当我使用 GridBox 时，Jupyter 笔记本中没有任何输出。

https://ipywidgets.readthedocs.io/en/stable/examples/Widget%20Styling.html#Shorthand-CSS-properties

下面这个代码片段的例子。

from ipywidgets import Button, GridBox, Layout, ButtonStyle

header  = Button(description='Header',
             layout=Layout(width='auto', grid_area='header'),
             style=ButtonStyle(button_color='lightblue'))
main    = Button(description='Main',
             layout=Layout(width='auto', grid_area='main'),
             style=ButtonStyle(button_color='moccasin'))
sidebar = Button(description='Sidebar',
             layout=Layout(width='auto', grid_area='sidebar'),
             style=ButtonStyle(button_color='salmon'))
footer  = Button(description='Footer',
             layout=Layout(width='auto', grid_area='footer'),
             style=ButtonStyle(button_color='olive'))

GridBox(children=[header, main, sidebar, footer],
        layout=Layout(
        width='50%',
        grid_template_rows='auto auto auto',
        grid_template_columns='25% 25% 25% 25%',
        grid_template_areas='''
        "header header header header"
        "main main . sidebar "
        "footer footer footer footer"
        '''))

我没有得到任何输出。有谁知道为什么？提前谢谢了 ：）

标签： pythongridwidgetjupyter-notebookjupyter