jupyter安装jupyter_contrib_nbextensions之后nbextensions标签不显示

Question

按照
https://jupyter-contrib-nbextensions.readthedocs.io/en/latest/install.html#install-the-python-package
提供的安装方法

执行以下命令
pip install jupyter_contrib_nbextensions
无报错并提示
Installing collected packages: jupyter-nbextensions-configurator, jupyter-contrib-nbextensions
Successfully installed jupyter-contrib-nbextensions-0.5.0 jupyter-nbextensions-configurator-0.4.0

执行
jupyter contrib nbextension install --user
无报错

 Enabling: jupyter_nbextensions_configurator
- Writing config: C:\Users\Hatsune Miku\.jupyter
    - Validating...
      jupyter_nbextensions_configurator 0.4.0 ok
Enabling notebook nbextension nbextensions_configurator/config_menu/main...
Enabling tree nbextension nbextensions_configurator/tree_tab/main...
[I 14:26:29 InstallContribNbextensionsApp] Enabling notebook extension contrib_nbextensions_help_item/main...
[I 14:26:29 InstallContribNbextensionsApp]       - Validating: ok
[I 14:26:29 InstallContribNbextensionsApp] - Editing config: C:\Users\Hatsune Miku\.jupyter\jupyter_nbconvert_config.json
[I 14:26:29 InstallContribNbextensionsApp] --  Configuring nbconvert template path
[I 14:26:29 InstallContribNbextensionsApp] --  Configuring nbconvert preprocessors
[I 14:26:29 InstallContribNbextensionsApp] - Writing config: C:\Users\Hatsune Miku\.jupyter\jupyter_nbconvert_config.json
[I 14:26:29 InstallContribNbextensionsApp] --  Writing updated config file C:\Users\Hatsune Miku\.jupyter\jupyter_nbconvert_config.json

启动jupyter
jupyter notebook

 [W 14:26:48.022 NotebookApp] Terminals not available (error was No module named 'winpty.cywinpty')
[I 14:26:48.053 NotebookApp] [jupyter_nbextensions_configurator] enabled 0.4.0
[I 14:26:48.053 NotebookApp] Serving notebooks from local directory: G:\Python\jupyter-workspace
[I 14:26:48.053 NotebookApp] The Jupyter Notebook is running at:
[I 14:26:48.053 NotebookApp] http://localhost:8888/?token=7ca3b607fd4757bf076262a5ce84ba22f5634803a7f615db
[I 14:26:48.053 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 14:26:48.100 NotebookApp]

    Copy/paste this URL into your browser when you connect for the first time,
    to login with a token:
        http://localhost:8888/?token=7ca3b607fd4757bf076262a5ce84ba22f5634803a7f615db
[I 14:26:48.537 NotebookApp] Accepting one-time-token-authenticated connection from ::1

没有nbextensions标签
请问要怎么解决这个问题，已经重新安装jupyter_contrib_nbextensions很多次了

Answer 1

你pip list 一下，看看这个包装了吗，要是安装了的话，你直接打开http://localhost:8888/nbextensions?nbextension=toc2/main这个网页，配置一下就可以了，正常情况下这个插件按钮是正常自己出现的，我目前还没找到配置按钮的方法，但是你登录这个网页配置的话，是可以使用插件的功能的