Jupyter小部件未出现在笔记本中 [英] Jupyter widget does not appear in notebook

问题描述

我正在运行jupyter笔记本，但是jupyter窗口小部件没有出现.相反，我收到以下消息:

I'm running a jupyter notebook but the jupyter widgets does not appear. Instead I receive the folllowing message:

Failed to display Jupyter Widget of type Button.
If you're reading this message in the Jupyter Notebook or JupyterLab Notebook, it may mean that the widgets JavaScript is still loading. If this message persists, it likely means that the widgets JavaScript library is either not installed or not enabled. See the Jupyter Widgets Documentation for setup instructions.
If you're reading this message in another frontend (for example, a static rendering on GitHub or NBViewer), it may mean that your frontend doesn't currently support widgets.

我有以下版本:

widgetsnbextension (3.0.8)
ipywidgets (7.0.5)

我使用以下命令安装了小部件:

I installed the widgets with this command:

pip install ipywidgets
jupyter nbextension enable --py widgetsnbextension

我的代码也是:

import ipywidgets as widgets
from IPython.display import display

button = widgets.Button(description='Hello')
display(button)

推荐答案

我有相同的版本，并且代码形式也适用于我. 在启动jupyter笔记本之前.您尝试执行吗?:

I have same versions and code works form me. BEFORE start jupyter notebook. Do you try execute?:

jupyter nbextension enable --py widgetsnbextension --sys-prefix

输出==>

Enabling notebook extension jupyter-js-widgets/extension...
         - Validating: ok

** http://ipywidgets.readthedocs.io/en/stable/user_install .html 显示pip的安装说明.指定在使用虚拟环境时使用此模式.

** http://ipywidgets.readthedocs.io/en/stable/user_install.html shows the installation instructions with pip. Specifies that this mode be used when using virtual environments.

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