• Jupyter笔记本添加扩展模块


    访问github打不开,还带偶尔出问题的,这么脆弱,耽误事情,不想好好用这个了,用什么呢?

    1.安装步骤:

    Step1:确定是已经安装好anaconda

    Step2:要在Mac终端下运行,如何找到终端(启动台-其他-终端)

    Step3:先安装nbextensions依次输入运行下面代码:

    pip install jupyter_contrib_nbextensions

    jupyter contrib nbextension install --user

    Step4:再安装nbextensions_configurator,依次输入运行以下代码:

    pip install jupyter_nbextensions_configurator

    jupyter nbextensions_configurator enable --user

    Step5:安装完成后,关终端,启动anaconda中的jupyter notebook,在主页中,可以看见Nbextensions标签页,选中Hinterland 就能使用代码补全了。

    2.安装总是报错,按网上的安装总是报错:

    (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ConnectTimeoutError(<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x10339bf98>, 'Connection to pypi.org timed out. (connect timeout=15)')': /simple/jupyter-contrib-nbextensions/

     3..解决方案:

    分析原因:连接超时,下载不了安装包

    解决方法:解决办法:pip install xxx -i http://pypi.douban.com/simple --trusted-host pypi.douban.com(其中的xxx是你需要下载的库,根据自己实际需求更改)

    4.设置需要的功能

    Table of Content是(20):根据标题生成目录;

    Hinterland:可以让你每敲完一个键,就出现下拉菜单,可以直接选中你需要的词汇。可以让你每敲完一个键,就出现下拉菜单,可以直接选中你需要的词汇。

    Snippets:在工具栏里加了一个下拉菜单,可以非常方便的直接插入代码段,完全不用手动敲。

    Last login: Wed Jun 10 15:35:12 on ttys014
    (base) localhost:~ ligaijiang$ pip install jupyter_contrib_nbextensions -i http://pypi.douban.com/simple --trusted-host pypi.douban.com
    Looking in indexes: http://pypi.douban.com/simple
    Collecting jupyter_contrib_nbextensions
      Downloading http://pypi.doubanio.com/packages/33/f0/6e2c00afda860f655fbf0f795f7310bdbf12122846344dfdc803fc7455d5/jupyter_contrib_nbextensions-0.5.1-py2.py3-none-any.whl (20.9MB)
        100% |████████████████████████████████| 20.9MB 1.4MB/s 
    Collecting jupyter-highlight-selected-word>=0.1.1 (from jupyter_contrib_nbextensions)
      Downloading http://pypi.doubanio.com/packages/50/d7/19ab7cfd60bf268d2abbacc52d4295a40f52d74dfc0d938e4761ee5e598b/jupyter_highlight_selected_word-0.2.0-py2.py3-none-any.whl
    Requirement already satisfied: traitlets>=4.1 in ./anaconda3/lib/python3.7/site-packages (from jupyter_contrib_nbextensions) (4.3.2)
    Requirement already satisfied: jupyter-core in ./anaconda3/lib/python3.7/site-packages (from jupyter_contrib_nbextensions) (4.4.0)
    Requirement already satisfied: nbconvert>=4.2 in ./anaconda3/lib/python3.7/site-packages (from jupyter_contrib_nbextensions) (5.4.0)
    Collecting jupyter-latex-envs>=1.3.8 (from jupyter_contrib_nbextensions)
      Downloading http://pypi.doubanio.com/packages/0e/15/55805de080d5542f76920364635e96e64d3b37f678befdfe3b16aa154205/jupyter_latex_envs-1.4.6.tar.gz (861kB)
        100% |████████████████████████████████| 870kB 2.8MB/s 
    Requirement already satisfied: pyyaml in ./anaconda3/lib/python3.7/site-packages (from jupyter_contrib_nbextensions) (5.3)
    Requirement already satisfied: lxml in ./anaconda3/lib/python3.7/site-packages (from jupyter_contrib_nbextensions) (4.2.5)
    Requirement already satisfied: ipython-genutils in ./anaconda3/lib/python3.7/site-packages (from jupyter_contrib_nbextensions) (0.2.0)
    Requirement already satisfied: tornado in ./anaconda3/lib/python3.7/site-packages (from jupyter_contrib_nbextensions) (5.1.1)
    Requirement already satisfied: notebook>=4.0 in ./anaconda3/lib/python3.7/site-packages (from jupyter_contrib_nbextensions) (5.7.4)
    Collecting jupyter-contrib-core>=0.3.3 (from jupyter_contrib_nbextensions)
      Downloading http://pypi.doubanio.com/packages/e6/8f/04a752a8b66a66e7092c035e5d87d2502ac7ec07f9fb6059059b6c0dc272/jupyter_contrib_core-0.3.3-py2.py3-none-any.whl
    Collecting jupyter-nbextensions-configurator>=0.4.0 (from jupyter_contrib_nbextensions)
      Downloading http://pypi.doubanio.com/packages/51/a3/d72d5f2dc10c5ccf5a6f4c79f636bf071a5ce462dedd07af2f70384db6cb/jupyter_nbextensions_configurator-0.4.1.tar.gz (479kB)
        100% |████████████████████████████████| 481kB 2.9MB/s 
    Requirement already satisfied: six in ./anaconda3/lib/python3.7/site-packages (from traitlets>=4.1->jupyter_contrib_nbextensions) (1.12.0)
    Requirement already satisfied: decorator in ./anaconda3/lib/python3.7/site-packages (from traitlets>=4.1->jupyter_contrib_nbextensions) (4.3.0)
    Requirement already satisfied: mistune>=0.8.1 in ./anaconda3/lib/python3.7/site-packages (from nbconvert>=4.2->jupyter_contrib_nbextensions) (0.8.4)
    Requirement already satisfied: jinja2 in ./anaconda3/lib/python3.7/site-packages (from nbconvert>=4.2->jupyter_contrib_nbextensions) (2.10)
    Requirement already satisfied: pygments in ./anaconda3/lib/python3.7/site-packages (from nbconvert>=4.2->jupyter_contrib_nbextensions) (2.3.1)
    Requirement already satisfied: nbformat>=4.4 in ./anaconda3/lib/python3.7/site-packages (from nbconvert>=4.2->jupyter_contrib_nbextensions) (4.4.0)
    Requirement already satisfied: entrypoints>=0.2.2 in ./anaconda3/lib/python3.7/site-packages (from nbconvert>=4.2->jupyter_contrib_nbextensions) (0.2.3)
    Requirement already satisfied: bleach in ./anaconda3/lib/python3.7/site-packages (from nbconvert>=4.2->jupyter_contrib_nbextensions) (3.0.2)
    Requirement already satisfied: pandocfilters>=1.4.1 in ./anaconda3/lib/python3.7/site-packages (from nbconvert>=4.2->jupyter_contrib_nbextensions) (1.4.2)
    Requirement already satisfied: testpath in ./anaconda3/lib/python3.7/site-packages (from nbconvert>=4.2->jupyter_contrib_nbextensions) (0.4.2)
    Requirement already satisfied: defusedxml in ./anaconda3/lib/python3.7/site-packages (from nbconvert>=4.2->jupyter_contrib_nbextensions) (0.5.0)
    Requirement already satisfied: ipython in ./anaconda3/lib/python3.7/site-packages (from jupyter-latex-envs>=1.3.8->jupyter_contrib_nbextensions) (7.2.0)
    Requirement already satisfied: pyzmq>=17 in ./anaconda3/lib/python3.7/site-packages (from notebook>=4.0->jupyter_contrib_nbextensions) (17.1.2)
    Requirement already satisfied: ipykernel in ./anaconda3/lib/python3.7/site-packages (from notebook>=4.0->jupyter_contrib_nbextensions) (5.1.0)
    Requirement already satisfied: Send2Trash in ./anaconda3/lib/python3.7/site-packages (from notebook>=4.0->jupyter_contrib_nbextensions) (1.5.0)
    Requirement already satisfied: jupyter-client>=5.2.0 in ./anaconda3/lib/python3.7/site-packages (from notebook>=4.0->jupyter_contrib_nbextensions) (5.2.4)
    Requirement already satisfied: prometheus-client in ./anaconda3/lib/python3.7/site-packages (from notebook>=4.0->jupyter_contrib_nbextensions) (0.5.0)
    Requirement already satisfied: terminado>=0.8.1 in ./anaconda3/lib/python3.7/site-packages (from notebook>=4.0->jupyter_contrib_nbextensions) (0.8.1)
    Requirement already satisfied: setuptools in ./anaconda3/lib/python3.7/site-packages (from jupyter-contrib-core>=0.3.3->jupyter_contrib_nbextensions) (40.6.3)
    Requirement already satisfied: MarkupSafe>=0.23 in ./anaconda3/lib/python3.7/site-packages (from jinja2->nbconvert>=4.2->jupyter_contrib_nbextensions) (1.1.0)
    Requirement already satisfied: jsonschema!=2.5.0,>=2.4 in ./anaconda3/lib/python3.7/site-packages (from nbformat>=4.4->nbconvert>=4.2->jupyter_contrib_nbextensions) (2.6.0)
    Requirement already satisfied: webencodings in ./anaconda3/lib/python3.7/site-packages (from bleach->nbconvert>=4.2->jupyter_contrib_nbextensions) (0.5.1)
    Requirement already satisfied: pickleshare in ./anaconda3/lib/python3.7/site-packages (from ipython->jupyter-latex-envs>=1.3.8->jupyter_contrib_nbextensions) (0.7.5)
    Requirement already satisfied: appnope; sys_platform == "darwin" in ./anaconda3/lib/python3.7/site-packages (from ipython->jupyter-latex-envs>=1.3.8->jupyter_contrib_nbextensions) (0.1.0)
    Requirement already satisfied: backcall in ./anaconda3/lib/python3.7/site-packages (from ipython->jupyter-latex-envs>=1.3.8->jupyter_contrib_nbextensions) (0.1.0)
    Requirement already satisfied: jedi>=0.10 in ./anaconda3/lib/python3.7/site-packages (from ipython->jupyter-latex-envs>=1.3.8->jupyter_contrib_nbextensions) (0.13.2)
    Requirement already satisfied: pexpect; sys_platform != "win32" in ./anaconda3/lib/python3.7/site-packages (from ipython->jupyter-latex-envs>=1.3.8->jupyter_contrib_nbextensions) (4.6.0)
    Requirement already satisfied: prompt-toolkit<2.1.0,>=2.0.0 in ./anaconda3/lib/python3.7/site-packages (from ipython->jupyter-latex-envs>=1.3.8->jupyter_contrib_nbextensions) (2.0.7)
    Requirement already satisfied: python-dateutil>=2.1 in ./anaconda3/lib/python3.7/site-packages (from jupyter-client>=5.2.0->notebook>=4.0->jupyter_contrib_nbextensions) (2.7.5)
    Requirement already satisfied: parso>=0.3.0 in ./anaconda3/lib/python3.7/site-packages (from jedi>=0.10->ipython->jupyter-latex-envs>=1.3.8->jupyter_contrib_nbextensions) (0.3.1)
    Requirement already satisfied: ptyprocess>=0.5 in ./anaconda3/lib/python3.7/site-packages (from pexpect; sys_platform != "win32"->ipython->jupyter-latex-envs>=1.3.8->jupyter_contrib_nbextensions) (0.6.0)
    Requirement already satisfied: wcwidth in ./anaconda3/lib/python3.7/site-packages (from prompt-toolkit<2.1.0,>=2.0.0->ipython->jupyter-latex-envs>=1.3.8->jupyter_contrib_nbextensions) (0.1.7)
    Building wheels for collected packages: jupyter-latex-envs, jupyter-nbextensions-configurator
      Running setup.py bdist_wheel for jupyter-latex-envs ... done
      Stored in directory: /Users/ligaijiang/Library/Caches/pip/wheels/24/b5/44/d0503e380c67615ab0874418203e7ab654a8dd7ddc7f192e9d
      Running setup.py bdist_wheel for jupyter-nbextensions-configurator ... done
      Stored in directory: /Users/ligaijiang/Library/Caches/pip/wheels/17/88/26/fd088c192436b128073cd6e3ba04c3d30cdc4f57cf440cd843
    Successfully built jupyter-latex-envs jupyter-nbextensions-configurator
    Installing collected packages: jupyter-highlight-selected-word, jupyter-latex-envs, jupyter-contrib-core, jupyter-nbextensions-configurator, jupyter-contrib-nbextensions
    Successfully installed jupyter-contrib-core-0.3.3 jupyter-contrib-nbextensions-0.5.1 jupyter-highlight-selected-word-0.2.0 jupyter-latex-envs-1.4.6 jupyter-nbextensions-configurator-0.4.1
    (base) localhost:~ ligaijiang$ jupyter contrib nbextension install --user
    [I 15:40:44 InstallContribNbextensionsApp] jupyter contrib nbextension install --user
    [I 15:40:44 InstallContribNbextensionsApp] Installing jupyter_contrib_nbextensions nbextension files to jupyter data directory
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/rubberband -> rubberband
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/rubberband/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/rubberband/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/rubberband/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/rubberband/main.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/rubberband/main.css
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/rubberband/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/rubberband/readme.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/rubberband/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/rubberband/main.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/rubberband/rubberband.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/rubberband/rubberband.yaml
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/scroll_down -> scroll_down
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/scroll_down/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/scroll_down/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/scroll_down/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/scroll_down/config.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/scroll_down/config.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/scroll_down/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/scroll_down/readme.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/scroll_down/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/scroll_down/main.js
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hinterland -> hinterland
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/hinterland/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hinterland/hinterland.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/hinterland/hinterland.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hinterland/hinterland.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/hinterland/hinterland.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hinterland/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/hinterland/README.md
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets -> snippets
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/snippets/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets/snippets.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets/snippets.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets/snippets.json -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets/snippets.json
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets/README.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets/main.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets/snippets-demo.gif -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets/snippets-demo.gif
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/toggle_all_line_numbers -> toggle_all_line_numbers
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/toggle_all_line_numbers/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/toggle_all_line_numbers/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/toggle_all_line_numbers/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/toggle_all_line_numbers/main.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/toggle_all_line_numbers/main.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/toggle_all_line_numbers/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/toggle_all_line_numbers/readme.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/toggle_all_line_numbers/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/toggle_all_line_numbers/main.js
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/notify -> notify
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/notify/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/notify/notify.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/notify/notify.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/notify/notify.mp3 -> /Users/ligaijiang/Library/Jupyter/nbextensions/notify/notify.mp3
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/notify/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/notify/readme.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/notify/notify.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/notify/notify.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/notify/notification.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/notify/notification.png
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/runtools -> runtools
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/runtools/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/runtools/cellstate.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/runtools/cellstate.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/runtools/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/runtools/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/runtools/runtools_execute.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/runtools/runtools_execute.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/runtools/annotations.odg -> /Users/ligaijiang/Library/Jupyter/nbextensions/runtools/annotations.odg
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/runtools/runtools.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/runtools/runtools.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/runtools/main.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/runtools/main.css
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/runtools/runtools_nb.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/runtools/runtools_nb.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/runtools/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/runtools/readme.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/runtools/runtools_marker.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/runtools/runtools_marker.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/runtools/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/runtools/main.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/runtools/runtools_show_hide.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/runtools/runtools_show_hide.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/runtools/runtools_lock.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/runtools/runtools_lock.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/runtools/demo.gif -> /Users/ligaijiang/Library/Jupyter/nbextensions/runtools/demo.gif
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/runtools/gutter.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/runtools/gutter.css
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/tree-filter -> tree-filter
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/tree-filter/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/tree-filter/tree-filter.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/tree-filter/tree-filter.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/tree-filter/index.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/tree-filter/index.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/tree-filter/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/tree-filter/readme.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/tree-filter/demo.gif -> /Users/ligaijiang/Library/Jupyter/nbextensions/tree-filter/demo.gif
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/table_beautifier -> table_beautifier
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/table_beautifier/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/table_beautifier/main.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/table_beautifier/main.css
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/table_beautifier/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/table_beautifier/README.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/table_beautifier/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/table_beautifier/main.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/table_beautifier/table_beautifier.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/table_beautifier/table_beautifier.yaml
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/freeze -> freeze
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/freeze/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/freeze/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/freeze/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/freeze/config.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/freeze/config.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/freeze/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/freeze/readme.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/freeze/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/freeze/main.js
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/exercise2 -> exercise2
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/exercise2/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/exercise2/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/exercise2/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/exercise2/exercise2.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/exercise2/exercise2.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/exercise2/main.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/exercise2/main.css
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/exercise2/image.gif -> /Users/ligaijiang/Library/Jupyter/nbextensions/exercise2/image.gif
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/exercise2/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/exercise2/readme.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/exercise2/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/exercise2/main.js
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/execution_dependencies -> execution_dependencies
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/execution_dependencies/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/execution_dependencies/execution_dependencies.yml -> /Users/ligaijiang/Library/Jupyter/nbextensions/execution_dependencies/execution_dependencies.yml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/execution_dependencies/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/execution_dependencies/README.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/execution_dependencies/execution_dependencies.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/execution_dependencies/execution_dependencies.js
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/skill -> skill
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/skill/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/skill/skill.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/skill/skill.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/skill/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/skill/README.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/skill/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/skill/main.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/skill/skill.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/skill/skill.yaml
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/splitcell -> splitcell
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/splitcell/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/splitcell/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/splitcell/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/splitcell/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/splitcell/readme.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/splitcell/splitcell.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/splitcell/splitcell.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/splitcell/splitcell.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/splitcell/splitcell.js
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/autosavetime -> autosavetime
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/autosavetime/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/autosavetime/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/autosavetime/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/autosavetime/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/autosavetime/README.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/autosavetime/autosavetime.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/autosavetime/autosavetime.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/autosavetime/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/autosavetime/main.js
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/select_keymap -> select_keymap
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/select_keymap/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/select_keymap/select_keymap.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/select_keymap/select_keymap.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/select_keymap/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/select_keymap/README.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/select_keymap/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/select_keymap/main.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/select_keymap/select_keymap.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/select_keymap/select_keymap.yaml
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/livemdpreview -> livemdpreview
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/livemdpreview/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/livemdpreview/livemdpreview.yml -> /Users/ligaijiang/Library/Jupyter/nbextensions/livemdpreview/livemdpreview.yml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/livemdpreview/livemdpreview.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/livemdpreview/livemdpreview.js
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/gist_it -> gist_it
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/gist_it/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/gist_it/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/gist_it/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/gist_it/gist_it.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/gist_it/gist_it.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/gist_it/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/gist_it/readme.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/gist_it/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/gist_it/main.js
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/cell_filter -> cell_filter
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/cell_filter/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/cell_filter/cell_filter.yml -> /Users/ligaijiang/Library/Jupyter/nbextensions/cell_filter/cell_filter.yml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/cell_filter/cell_filter.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/cell_filter/cell_filter.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/cell_filter/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/cell_filter/README.md
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/scratchpad -> scratchpad
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/scratchpad/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/scratchpad/LICENSE -> /Users/ligaijiang/Library/Jupyter/nbextensions/scratchpad/LICENSE
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/scratchpad/scratchpad.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/scratchpad/scratchpad.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/scratchpad/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/scratchpad/README.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/scratchpad/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/scratchpad/main.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/scratchpad/scratchpad.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/scratchpad/scratchpad.css
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/scratchpad/demo.gif -> /Users/ligaijiang/Library/Jupyter/nbextensions/scratchpad/demo.gif
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/toc2 -> toc2
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/toc2/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/toc2/toc2.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/toc2/toc2.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/toc2/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/toc2/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/toc2/demo_dark.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/toc2/demo_dark.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/toc2/main.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/toc2/main.css
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/toc2/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/toc2/README.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/toc2/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/toc2/main.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/toc2/demo3.gif -> /Users/ligaijiang/Library/Jupyter/nbextensions/toc2/demo3.gif
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/toc2/demo2.gif -> /Users/ligaijiang/Library/Jupyter/nbextensions/toc2/demo2.gif
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/toc2/toc2.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/toc2/toc2.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/toc2/demo.gif -> /Users/ligaijiang/Library/Jupyter/nbextensions/toc2/demo.gif
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/toc2/image.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/toc2/image.png
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/nbTranslate -> nbTranslate
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/nbTranslate/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/nbTranslate/nbTranslate.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/nbTranslate/nbTranslate.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/nbTranslate/nbTranslate.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/nbTranslate/nbTranslate.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/nbTranslate/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/nbTranslate/README.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/nbTranslate/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/nbTranslate/main.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/nbTranslate/demo1.gif -> /Users/ligaijiang/Library/Jupyter/nbextensions/nbTranslate/demo1.gif
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/nbTranslate/demo2.gif -> /Users/ligaijiang/Library/Jupyter/nbextensions/nbTranslate/demo2.gif
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/nbTranslate/languages.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/nbTranslate/languages.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/nbTranslate/mutils.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/nbTranslate/mutils.js
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/equation-numbering -> equation-numbering
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/equation-numbering/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/equation-numbering/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/equation-numbering/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/equation-numbering/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/equation-numbering/readme.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/equation-numbering/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/equation-numbering/main.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/equation-numbering/info.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/equation-numbering/info.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/equation-numbering/button.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/equation-numbering/button.png
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/navigation-hotkeys -> navigation-hotkeys
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/navigation-hotkeys/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/navigation-hotkeys/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/navigation-hotkeys/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/navigation-hotkeys/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/navigation-hotkeys/readme.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/navigation-hotkeys/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/navigation-hotkeys/main.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/navigation-hotkeys/hotkeys.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/navigation-hotkeys/hotkeys.yaml
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu -> snippets_menu
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_menu.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_menu.css
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenu_python.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_submenu_python.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/config.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/config.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/readme.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/main.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenu_markdown.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_submenu_markdown.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/thumbnail.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/thumbnail.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/screenshot1.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/screenshot1.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/screenshot2.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/screenshot2.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/screenshot3.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/screenshot3.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/examples_for_custom.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/examples_for_custom.js
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_submenus_python
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/numpy_ufuncs.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_submenus_python/numpy_ufuncs.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/numba.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_submenus_python/numba.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/sympy_assumptions.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_submenus_python/sympy_assumptions.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/sympy.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_submenus_python/sympy.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/numpy.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_submenus_python/numpy.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/astropy.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_submenus_python/astropy.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/pandas.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_submenus_python/pandas.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/numpy_polynomial.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_submenus_python/numpy_polynomial.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/scipy_constants.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_submenus_python/scipy_constants.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/matplotlib.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_submenus_python/matplotlib.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/sympy_functions.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_submenus_python/sympy_functions.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/h5py.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_submenus_python/h5py.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/scipy_special.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_submenus_python/scipy_special.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/python_regex.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_submenus_python/python_regex.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/python.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_submenus_python/python.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/scipy.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/snippets_menu/snippets_submenus_python/scipy.js
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/printview -> printview
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/printview/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/printview/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/printview/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/printview/printview-button.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/printview/printview-button.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/printview/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/printview/readme.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/printview/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/printview/main.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/printview/printview.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/printview/printview.yaml
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/export_embedded -> export_embedded
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/export_embedded/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/export_embedded/export_embedded.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/export_embedded/export_embedded.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/export_embedded/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/export_embedded/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/export_embedded/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/export_embedded/readme.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/export_embedded/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/export_embedded/main.js
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/autoscroll -> autoscroll
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/autoscroll/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/autoscroll/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/autoscroll/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/autoscroll/autoscroll.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/autoscroll/autoscroll.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/autoscroll/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/autoscroll/README.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/autoscroll/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/autoscroll/main.js
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hide_input -> hide_input
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/hide_input/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hide_input/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/hide_input/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hide_input/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/hide_input/readme.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hide_input/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/hide_input/main.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hide_input/hide-input.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/hide_input/hide-input.yaml
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hide_input_all -> hide_input_all
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/hide_input_all/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hide_input_all/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/hide_input_all/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hide_input_all/hide_input_all.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/hide_input_all/hide_input_all.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hide_input_all/hide_input_all_show.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/hide_input_all/hide_input_all_show.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hide_input_all/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/hide_input_all/readme.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hide_input_all/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/hide_input_all/main.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hide_input_all/hide_input_all_hide.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/hide_input_all/hide_input_all_hide.png
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/keyboard_shortcut_editor -> keyboard_shortcut_editor
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/keyboard_shortcut_editor/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/keyboard_shortcut_editor/keyboard_shortcut_editor.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/keyboard_shortcut_editor/keyboard_shortcut_editor.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/keyboard_shortcut_editor/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/keyboard_shortcut_editor/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/keyboard_shortcut_editor/readme_comma.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/keyboard_shortcut_editor/readme_comma.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/keyboard_shortcut_editor/readme_shortcut_editor_blank.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/keyboard_shortcut_editor/readme_shortcut_editor_blank.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/keyboard_shortcut_editor/readme_shortcut_editor_success.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/keyboard_shortcut_editor/readme_shortcut_editor_success.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/keyboard_shortcut_editor/main.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/keyboard_shortcut_editor/main.css
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/keyboard_shortcut_editor/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/keyboard_shortcut_editor/README.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/keyboard_shortcut_editor/readme_reset_disabled.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/keyboard_shortcut_editor/readme_reset_disabled.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/keyboard_shortcut_editor/readme_add_new_link.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/keyboard_shortcut_editor/readme_add_new_link.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/keyboard_shortcut_editor/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/keyboard_shortcut_editor/main.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/keyboard_shortcut_editor/readme_dropdown.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/keyboard_shortcut_editor/readme_dropdown.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/keyboard_shortcut_editor/quickhelp_shim.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/keyboard_shortcut_editor/quickhelp_shim.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/keyboard_shortcut_editor/readme_add_new_select_action.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/keyboard_shortcut_editor/readme_add_new_select_action.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/keyboard_shortcut_editor/kse_components.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/keyboard_shortcut_editor/kse_components.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/keyboard_shortcut_editor/readme_undefined_key.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/keyboard_shortcut_editor/readme_undefined_key.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/keyboard_shortcut_editor/readme_conflict.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/keyboard_shortcut_editor/readme_conflict.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/keyboard_shortcut_editor/readme_menu_item.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/keyboard_shortcut_editor/readme_menu_item.png
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/help_panel -> help_panel
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/help_panel/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/help_panel/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/help_panel/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/help_panel/help_panel_ext.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/help_panel/help_panel_ext.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/help_panel/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/help_panel/readme.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/help_panel/help_panel_ext_fullscreen.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/help_panel/help_panel_ext_fullscreen.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/help_panel/help_panel.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/help_panel/help_panel.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/help_panel/help_panel.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/help_panel/help_panel.css
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/help_panel/help_panel.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/help_panel/help_panel.js
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/help_panel/img
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/help_panel/img/handle-v.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/help_panel/img/handle-v.png
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/move_selected_cells -> move_selected_cells
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/move_selected_cells/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/move_selected_cells/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/move_selected_cells/README.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/move_selected_cells/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/move_selected_cells/main.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/move_selected_cells/move_selected_cells.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/move_selected_cells/move_selected_cells.yaml
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/zenmode -> zenmode
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/zenmode/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/zenmode/main.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/zenmode/main.css
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/zenmode/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/zenmode/README.md
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/zenmode/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/zenmode/main.js
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/zenmode/zenmode.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/zenmode/zenmode.yaml
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/zenmode/images
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/zenmode/images/back12.jpg -> /Users/ligaijiang/Library/Jupyter/nbextensions/zenmode/images/back12.jpg
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/zenmode/images/back11.jpg -> /Users/ligaijiang/Library/Jupyter/nbextensions/zenmode/images/back11.jpg
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/zenmode/images/back2.jpg -> /Users/ligaijiang/Library/Jupyter/nbextensions/zenmode/images/back2.jpg
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/zenmode/images/back3.jpg -> /Users/ligaijiang/Library/Jupyter/nbextensions/zenmode/images/back3.jpg
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/zenmode/images/back1.jpg -> /Users/ligaijiang/Library/Jupyter/nbextensions/zenmode/images/back1.jpg
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/zenmode/images/ipynblogo1.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/zenmode/images/ipynblogo1.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/zenmode/images/ipynblogo0.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/zenmode/images/ipynblogo0.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/zenmode/images/back21.jpg -> /Users/ligaijiang/Library/Jupyter/nbextensions/zenmode/images/back21.jpg
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/zenmode/images/back22.jpg -> /Users/ligaijiang/Library/Jupyter/nbextensions/zenmode/images/back22.jpg
    [I 15:40:44 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:44 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/skip-traceback -> skip-traceback
    [I 15:40:44 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/skip-traceback/
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/skip-traceback/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/skip-traceback/icon.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/skip-traceback/traceback.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/skip-traceback/traceback.png
    [I 15:40:44 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/skip-traceback/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/skip-traceback/readme.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/skip-traceback/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/skip-traceback/main.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/skip-traceback/skip-traceback.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/skip-traceback/skip-traceback.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/skip-traceback/skip-traceback.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/skip-traceback/skip-traceback.png
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/python-markdown -> python-markdown
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/python-markdown/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/python-markdown/untrusted.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/python-markdown/untrusted.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/python-markdown/python-markdown-pre.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/python-markdown/python-markdown-pre.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/python-markdown/main.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/python-markdown/main.css
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/python-markdown/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/python-markdown/readme.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/python-markdown/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/python-markdown/main.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/python-markdown/python-markdown.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/python-markdown/python-markdown.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/python-markdown/trusted.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/python-markdown/trusted.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/python-markdown/python-markdown.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/python-markdown/python-markdown.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/python-markdown/python-markdown-post.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/python-markdown/python-markdown-post.png
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codefolding -> codefolding
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codefolding/codefolding_editor.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/codefolding_editor.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codefolding/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/icon.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codefolding/codefolding_firstline_folded.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/codefolding_firstline_folded.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codefolding/codefolding_indent_folded_2.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/codefolding_indent_folded_2.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codefolding/codefolding_indent_folded_1.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/codefolding_indent_folded_1.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codefolding/edit.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/edit.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codefolding/magic-fold.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/magic-fold.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codefolding/firstline-fold.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/firstline-fold.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codefolding/codefolding_firstline_unfolded.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/codefolding_firstline_unfolded.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codefolding/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/readme.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codefolding/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/main.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codefolding/magic-unfolded.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/magic-unfolded.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codefolding/foldgutter.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/foldgutter.css
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codefolding/magic-folded.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/magic-folded.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codefolding/codefolding.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/codefolding.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codefolding/codefolding_editor.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/codefolding_editor.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codefolding/codefolding_indent_unfolded.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/codefolding_indent_unfolded.png
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codefolding -> codefolding
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/codefolding_editor.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/icon.png
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/codefolding_firstline_folded.png
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/codefolding_indent_folded_2.png
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/codefolding_indent_folded_1.png
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/edit.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/magic-fold.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/firstline-fold.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/codefolding_firstline_unfolded.png
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/readme.md
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/main.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/magic-unfolded.png
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/foldgutter.css
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/magic-folded.png
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/codefolding.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/codefolding_editor.png
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/codefolding/codefolding_indent_unfolded.png
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/collapsible_headings -> collapsible_headings
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/collapsible_headings/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/collapsible_headings/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/collapsible_headings/icon.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/collapsible_headings/screenshot.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/collapsible_headings/screenshot.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/collapsible_headings/main.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/collapsible_headings/main.css
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/collapsible_headings/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/collapsible_headings/readme.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/collapsible_headings/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/collapsible_headings/main.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/collapsible_headings/collapsible_headings.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/collapsible_headings/collapsible_headings.yaml
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/exercise -> exercise
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/exercise/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/exercise/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/exercise/icon.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/exercise/history.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/exercise/history.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/exercise/main.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/exercise/main.css
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/exercise/image.gif -> /Users/ligaijiang/Library/Jupyter/nbextensions/exercise/image.gif
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/exercise/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/exercise/readme.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/exercise/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/exercise/main.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/exercise/exercise.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/exercise/exercise.yaml
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codemirror_mode_extensions -> codemirror_mode_extensions
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/codemirror_mode_extensions/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codemirror_mode_extensions/codemirror_mode_extensions.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/codemirror_mode_extensions/codemirror_mode_extensions.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/codemirror_mode_extensions/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/codemirror_mode_extensions/main.js
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/ruler -> ruler
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/ruler/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/ruler/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/ruler/icon.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/ruler/edit.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/ruler/edit.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/ruler/ruler_editor.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/ruler/ruler_editor.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/ruler/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/ruler/readme.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/ruler/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/ruler/main.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/ruler/ruler.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/ruler/ruler.yaml
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/ruler -> ruler
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/ruler/icon.png
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/ruler/edit.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/ruler/ruler_editor.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/ruler/readme.md
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/ruler/main.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/ruler/ruler.yaml
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/contrib_nbextensions_help_item -> contrib_nbextensions_help_item
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/contrib_nbextensions_help_item/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/contrib_nbextensions_help_item/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/contrib_nbextensions_help_item/README.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/contrib_nbextensions_help_item/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/contrib_nbextensions_help_item/main.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/contrib_nbextensions_help_item/contrib_nbextensions_help_item.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/contrib_nbextensions_help_item/contrib_nbextensions_help_item.yaml
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/datestamper -> datestamper
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/datestamper/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/datestamper/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/datestamper/icon.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/datestamper/main.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/datestamper/main.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/datestamper/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/datestamper/readme.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/datestamper/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/datestamper/main.js
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/init_cell -> init_cell
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/init_cell/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/init_cell/init_cell.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/init_cell/init_cell.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/init_cell/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/init_cell/icon.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/init_cell/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/init_cell/README.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/init_cell/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/init_cell/main.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/init_cell/cell_toolbar_menu.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/init_cell/cell_toolbar_menu.png
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/limit_output -> limit_output
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/limit_output/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/limit_output/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/limit_output/icon.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/limit_output/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/limit_output/readme.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/limit_output/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/limit_output/main.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/limit_output/limit-output.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/limit_output/limit-output.yaml
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/qtconsole -> qtconsole
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/qtconsole/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/qtconsole/qtconsole.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/qtconsole/qtconsole.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/qtconsole/qtconsole.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/qtconsole/qtconsole.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/qtconsole/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/qtconsole/README.md
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/addbefore -> addbefore
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/addbefore/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/addbefore/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/addbefore/icon.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/addbefore/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/addbefore/readme.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/addbefore/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/addbefore/main.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/addbefore/addbefore.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/addbefore/addbefore.yaml
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/highlighter -> highlighter
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/highlighter/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/highlighter/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/highlighter/icon.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/highlighter/export_highlights.pdf -> /Users/ligaijiang/Library/Jupyter/nbextensions/highlighter/export_highlights.pdf
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/highlighter/demo_highlighter.html -> /Users/ligaijiang/Library/Jupyter/nbextensions/highlighter/demo_highlighter.html
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/highlighter/demo_highlighter.ipynb -> /Users/ligaijiang/Library/Jupyter/nbextensions/highlighter/demo_highlighter.ipynb
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/highlighter/tst_highlights.ipynb -> /Users/ligaijiang/Library/Jupyter/nbextensions/highlighter/tst_highlights.ipynb
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/highlighter/export_highlights.ipynb -> /Users/ligaijiang/Library/Jupyter/nbextensions/highlighter/export_highlights.ipynb
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/highlighter/tst_highlights.html -> /Users/ligaijiang/Library/Jupyter/nbextensions/highlighter/tst_highlights.html
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/highlighter/export_highlights.tex -> /Users/ligaijiang/Library/Jupyter/nbextensions/highlighter/export_highlights.tex
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/highlighter/image.gif -> /Users/ligaijiang/Library/Jupyter/nbextensions/highlighter/image.gif
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/highlighter/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/highlighter/readme.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/highlighter/highlighter.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/highlighter/highlighter.css
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/highlighter/tst_highlights.pdf -> /Users/ligaijiang/Library/Jupyter/nbextensions/highlighter/tst_highlights.pdf
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/highlighter/export_highlights.html -> /Users/ligaijiang/Library/Jupyter/nbextensions/highlighter/export_highlights.html
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/highlighter/tst_highlights.tex -> /Users/ligaijiang/Library/Jupyter/nbextensions/highlighter/tst_highlights.tex
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/highlighter/highlighter.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/highlighter/highlighter.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/highlighter/highlighter.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/highlighter/highlighter.js
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/comment-uncomment -> comment-uncomment
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/comment-uncomment/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/comment-uncomment/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/comment-uncomment/icon.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/comment-uncomment/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/comment-uncomment/readme.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/comment-uncomment/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/comment-uncomment/main.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/comment-uncomment/comment-uncomment.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/comment-uncomment/comment-uncomment.yaml
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_font_size -> code_font_size
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/code_font_size/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_font_size/code_font_size.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_font_size/code_font_size.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_font_size/code_font_size.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_font_size/code_font_size.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_font_size/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_font_size/README.md
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/varInspector -> varInspector
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/varInspector/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/varInspector/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/varInspector/icon.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/varInspector/jquery.tablesorter.min.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/varInspector/jquery.tablesorter.min.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/varInspector/varInspector.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/varInspector/varInspector.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/varInspector/main.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/varInspector/main.css
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/varInspector/var_list.py -> /Users/ligaijiang/Library/Jupyter/nbextensions/varInspector/var_list.py
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/varInspector/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/varInspector/README.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/varInspector/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/varInspector/main.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/varInspector/var_list.r -> /Users/ligaijiang/Library/Jupyter/nbextensions/varInspector/var_list.r
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/varInspector/tablesorter_LICENSE.txt -> /Users/ligaijiang/Library/Jupyter/nbextensions/varInspector/tablesorter_LICENSE.txt
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/varInspector/demo.gif -> /Users/ligaijiang/Library/Jupyter/nbextensions/varInspector/demo.gif
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/varInspector/__pycache__
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/varInspector/__pycache__/var_list.cpython-37.pyc -> /Users/ligaijiang/Library/Jupyter/nbextensions/varInspector/__pycache__/var_list.cpython-37.pyc
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/execute_time -> execute_time
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/execute_time/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/execute_time/ExecuteTime.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/execute_time/ExecuteTime.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/execute_time/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/execute_time/icon.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/execute_time/execution-timings-box.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/execute_time/execution-timings-box.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/execute_time/ExecuteTime.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/execute_time/ExecuteTime.css
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/execute_time/ExecuteTime.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/execute_time/ExecuteTime.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/execute_time/execution-timings-menu.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/execute_time/execution-timings-menu.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/execute_time/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/execute_time/readme.md
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/spellchecker -> spellchecker
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/spellchecker/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/spellchecker/download_new_dict.py -> /Users/ligaijiang/Library/Jupyter/nbextensions/spellchecker/download_new_dict.py
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/spellchecker/screenshot.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/spellchecker/screenshot.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/spellchecker/config.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/spellchecker/config.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/spellchecker/main.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/spellchecker/main.css
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/spellchecker/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/spellchecker/README.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/spellchecker/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/spellchecker/main.js
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/spellchecker/typo
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/spellchecker/typo/typo.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/spellchecker/typo/typo.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/spellchecker/typo/LICENSE.txt -> /Users/ligaijiang/Library/Jupyter/nbextensions/spellchecker/typo/LICENSE.txt
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/spellchecker/__pycache__
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/spellchecker/__pycache__/download_new_dict.cpython-37.pyc -> /Users/ligaijiang/Library/Jupyter/nbextensions/spellchecker/__pycache__/download_new_dict.cpython-37.pyc
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify -> code_prettify
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify/demo-py.gif -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/demo-py.gif
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify/kernel_exec_on_cell.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/kernel_exec_on_cell.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify/demo-jv.gif -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/demo-jv.gif
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify/README_2to3.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README_2to3.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify/2to3.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/2to3.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify/README_autopep8.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README_autopep8.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify/demo_2to3.gif -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/demo_2to3.gif
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify/README_isort.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README_isort.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify/README_code_prettify.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README_code_prettify.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify/code_prettify.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/code_prettify.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify/autopep8.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/autopep8.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify/demo-R.gif -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/demo-R.gif
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify/isort.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/isort.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify/code_prettify.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/code_prettify.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify/2to3.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/2to3.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify/autopep8.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/autopep8.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify/isort.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/isort.yaml
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify -> code_prettify
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/demo-py.gif
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/kernel_exec_on_cell.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/demo-jv.gif
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README_2to3.md
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/2to3.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README_autopep8.md
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/demo_2to3.gif
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README_isort.md
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README_code_prettify.md
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README.md
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/code_prettify.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/autopep8.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/demo-R.gif
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/isort.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/code_prettify.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/2to3.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/autopep8.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/isort.yaml
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify -> code_prettify
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/demo-py.gif
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/kernel_exec_on_cell.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/demo-jv.gif
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README_2to3.md
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/2to3.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README_autopep8.md
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/demo_2to3.gif
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README_isort.md
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README_code_prettify.md
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README.md
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/code_prettify.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/autopep8.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/demo-R.gif
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/isort.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/code_prettify.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/2to3.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/autopep8.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/isort.yaml
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/code_prettify -> code_prettify
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/demo-py.gif
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/kernel_exec_on_cell.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/demo-jv.gif
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README_2to3.md
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/2to3.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README_autopep8.md
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/demo_2to3.gif
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README_isort.md
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README_code_prettify.md
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/README.md
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/code_prettify.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/autopep8.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/demo-R.gif
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/isort.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/code_prettify.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/2to3.js
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/autopep8.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Up to date: /Users/ligaijiang/Library/Jupyter/nbextensions/code_prettify/isort.yaml
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/load_tex_macros -> load_tex_macros
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/load_tex_macros/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/load_tex_macros/load_tex_macros.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/load_tex_macros/load_tex_macros.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/load_tex_macros/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/load_tex_macros/icon.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/load_tex_macros/readme.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/load_tex_macros/readme.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/load_tex_macros/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/load_tex_macros/main.js
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hide_header -> hide_header
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/hide_header/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hide_header/hide_header.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/hide_header/hide_header.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hide_header/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/hide_header/README.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_contrib_nbextensions/nbextensions/hide_header/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/hide_header/main.js
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_highlight_selected_word/static/highlight_selected_word -> highlight_selected_word
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/highlight_selected_word/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_highlight_selected_word/static/highlight_selected_word/configurator.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/highlight_selected_word/configurator.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_highlight_selected_word/static/highlight_selected_word/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/highlight_selected_word/README.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/jupyter_highlight_selected_word/static/highlight_selected_word/main.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/highlight_selected_word/main.js
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static -> latex_envs
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/icon.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/icon.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/latex_envs.yaml -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/latex_envs.yaml
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/configuration_toolbar.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/configuration_toolbar.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/bibInNb4.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/bibInNb4.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/example_user_envs.json -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/example_user_envs.json
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/envsLatex.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/envsLatex.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/main_toolbar.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/main_toolbar.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/envsLatex.json -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/envsLatex.json
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/README.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/thmsInNb4.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/thmsInNb4.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/initNb.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/initNb.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/latex_envs.css -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/latex_envs.css
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/latex_envs.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/latex_envs.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/bibtex2.js -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/bibtex2.js
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/example.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/example.png
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/IEEEtran.bst -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/IEEEtran.bst
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/documentation.pdf -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/documentation.pdf
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/configuration_toolbar.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/configuration_toolbar.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/biblio_ipython.bib -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/biblio_ipython.bib
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/config_toolbar.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/config_toolbar.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/documentation.tex -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/documentation.tex
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/main_toolbar.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/main_toolbar.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/README.md -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/README.md
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/latex_env_doc.ipynb -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc.ipynb
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/LaTeX_envs_menu.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/LaTeX_envs_menu.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/latex_env_doc.tex -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc.tex
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/header.tex -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/header.tex
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/Toggles.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/Toggles.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/latex_env_doc.html -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc.html
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/example.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/example.png
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/.ipynb_checkpoints
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/.ipynb_checkpoints/latex_env_doc-checkpoint.ipynb -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/.ipynb_checkpoints/latex_env_doc-checkpoint.ipynb
    [I 15:40:45 InstallContribNbextensionsApp] Making directory: /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc_files
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/latex_env_doc_files/latex_env_doc_51_0.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc_files/latex_env_doc_51_0.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/latex_env_doc_files/latex_env_doc_48_0.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc_files/latex_env_doc_48_0.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/latex_env_doc_files/latex_env_doc_50_0.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc_files/latex_env_doc_50_0.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/latex_env_doc_files/latex_env_doc_49_0.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc_files/latex_env_doc_49_0.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/latex_env_doc_files/latex_env_doc_52_0.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc_files/latex_env_doc_52_0.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/latex_env_doc_files/latex_env_doc_41_0.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc_files/latex_env_doc_41_0.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/latex_env_doc_files/latex_env_doc_43_0.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc_files/latex_env_doc_43_0.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/latex_env_doc_files/latex_env_doc_24_2.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc_files/latex_env_doc_24_2.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/latex_env_doc_files/latex_env_doc_47_0.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc_files/latex_env_doc_47_0.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/latex_env_doc_files/latex_env_doc_45_0.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc_files/latex_env_doc_45_0.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/latex_env_doc_files/latex_env_doc_26_2.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc_files/latex_env_doc_26_2.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/latex_env_doc_files/latex_env_doc_42_0.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc_files/latex_env_doc_42_0.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/latex_env_doc_files/latex_env_doc_23_2.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc_files/latex_env_doc_23_2.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/latex_env_doc_files/latex_env_doc_44_0.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc_files/latex_env_doc_44_0.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/latex_env_doc_files/latex_env_doc_27_2.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc_files/latex_env_doc_27_2.png
    [I 15:40:45 InstallContribNbextensionsApp] Copying: /Users/ligaijiang/anaconda3/lib/python3.7/site-packages/latex_envs/static/doc/latex_env_doc_files/latex_env_doc_46_0.png -> /Users/ligaijiang/Library/Jupyter/nbextensions/latex_envs/doc/latex_env_doc_files/latex_env_doc_46_0.png
    [I 15:40:45 InstallContribNbextensionsApp] - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] Installing jupyter_contrib_nbextensions items to config in /Users/ligaijiang/.jupyter
    Enabling: jupyter_nbextensions_configurator
    - Writing config: /Users/ligaijiang/.jupyter
        - Validating...
          jupyter_nbextensions_configurator 0.4.1 OK
    Enabling notebook nbextension nbextensions_configurator/config_menu/main...
    Enabling tree nbextension nbextensions_configurator/tree_tab/main...
    [I 15:40:45 InstallContribNbextensionsApp] Enabling notebook extension contrib_nbextensions_help_item/main...
    [I 15:40:45 InstallContribNbextensionsApp]       - Validating: OK
    [I 15:40:45 InstallContribNbextensionsApp] - Editing config: /Users/ligaijiang/.jupyter/jupyter_nbconvert_config.json
    [I 15:40:45 InstallContribNbextensionsApp] --  Configuring nbconvert template path
    [I 15:40:45 InstallContribNbextensionsApp] --  Configuring nbconvert preprocessors
    [I 15:40:45 InstallContribNbextensionsApp] - Writing config: /Users/ligaijiang/.jupyter/jupyter_nbconvert_config.json
    [I 15:40:45 InstallContribNbextensionsApp] --  Writing updated config file /Users/ligaijiang/.jupyter/jupyter_nbconvert_config.json
    (base) localhost:~ ligaijiang$ pip install jupyter_nbextensions_configurator
    Requirement already satisfied: jupyter_nbextensions_configurator in ./anaconda3/lib/python3.7/site-packages (0.4.1)
    Requirement already satisfied: jupyter-contrib-core>=0.3.3 in ./anaconda3/lib/python3.7/site-packages (from jupyter_nbextensions_configurator) (0.3.3)
    Requirement already satisfied: notebook>=4.0 in ./anaconda3/lib/python3.7/site-packages (from jupyter_nbextensions_configurator) (5.7.4)
    Requirement already satisfied: pyyaml in ./anaconda3/lib/python3.7/site-packages (from jupyter_nbextensions_configurator) (5.3)
    Requirement already satisfied: traitlets in ./anaconda3/lib/python3.7/site-packages (from jupyter_nbextensions_configurator) (4.3.2)
    Requirement already satisfied: jupyter-core in ./anaconda3/lib/python3.7/site-packages (from jupyter_nbextensions_configurator) (4.4.0)
    Requirement already satisfied: tornado in ./anaconda3/lib/python3.7/site-packages (from jupyter_nbextensions_configurator) (5.1.1)
    Requirement already satisfied: setuptools in ./anaconda3/lib/python3.7/site-packages (from jupyter-contrib-core>=0.3.3->jupyter_nbextensions_configurator) (40.6.3)
    Requirement already satisfied: ipykernel in ./anaconda3/lib/python3.7/site-packages (from notebook>=4.0->jupyter_nbextensions_configurator) (5.1.0)
    Requirement already satisfied: terminado>=0.8.1 in ./anaconda3/lib/python3.7/site-packages (from notebook>=4.0->jupyter_nbextensions_configurator) (0.8.1)
    Requirement already satisfied: Send2Trash in ./anaconda3/lib/python3.7/site-packages (from notebook>=4.0->jupyter_nbextensions_configurator) (1.5.0)
    Requirement already satisfied: nbformat in ./anaconda3/lib/python3.7/site-packages (from notebook>=4.0->jupyter_nbextensions_configurator) (4.4.0)
    Requirement already satisfied: pyzmq>=17 in ./anaconda3/lib/python3.7/site-packages (from notebook>=4.0->jupyter_nbextensions_configurator) (17.1.2)
    Requirement already satisfied: nbconvert in ./anaconda3/lib/python3.7/site-packages (from notebook>=4.0->jupyter_nbextensions_configurator) (5.4.0)
    Requirement already satisfied: prometheus-client in ./anaconda3/lib/python3.7/site-packages (from notebook>=4.0->jupyter_nbextensions_configurator) (0.5.0)
    Requirement already satisfied: jupyter-client>=5.2.0 in ./anaconda3/lib/python3.7/site-packages (from notebook>=4.0->jupyter_nbextensions_configurator) (5.2.4)
    Requirement already satisfied: jinja2 in ./anaconda3/lib/python3.7/site-packages (from notebook>=4.0->jupyter_nbextensions_configurator) (2.10)
    Requirement already satisfied: ipython-genutils in ./anaconda3/lib/python3.7/site-packages (from notebook>=4.0->jupyter_nbextensions_configurator) (0.2.0)
    Requirement already satisfied: six in ./anaconda3/lib/python3.7/site-packages (from traitlets->jupyter_nbextensions_configurator) (1.12.0)
    Requirement already satisfied: decorator in ./anaconda3/lib/python3.7/site-packages (from traitlets->jupyter_nbextensions_configurator) (4.3.0)
    Requirement already satisfied: ipython>=5.0.0 in ./anaconda3/lib/python3.7/site-packages (from ipykernel->notebook>=4.0->jupyter_nbextensions_configurator) (7.2.0)
    Requirement already satisfied: jsonschema!=2.5.0,>=2.4 in ./anaconda3/lib/python3.7/site-packages (from nbformat->notebook>=4.0->jupyter_nbextensions_configurator) (2.6.0)
    Requirement already satisfied: mistune>=0.8.1 in ./anaconda3/lib/python3.7/site-packages (from nbconvert->notebook>=4.0->jupyter_nbextensions_configurator) (0.8.4)
    Requirement already satisfied: pygments in ./anaconda3/lib/python3.7/site-packages (from nbconvert->notebook>=4.0->jupyter_nbextensions_configurator) (2.3.1)
    Requirement already satisfied: entrypoints>=0.2.2 in ./anaconda3/lib/python3.7/site-packages (from nbconvert->notebook>=4.0->jupyter_nbextensions_configurator) (0.2.3)
    Requirement already satisfied: bleach in ./anaconda3/lib/python3.7/site-packages (from nbconvert->notebook>=4.0->jupyter_nbextensions_configurator) (3.0.2)
    Requirement already satisfied: pandocfilters>=1.4.1 in ./anaconda3/lib/python3.7/site-packages (from nbconvert->notebook>=4.0->jupyter_nbextensions_configurator) (1.4.2)
    Requirement already satisfied: testpath in ./anaconda3/lib/python3.7/site-packages (from nbconvert->notebook>=4.0->jupyter_nbextensions_configurator) (0.4.2)
    Requirement already satisfied: defusedxml in ./anaconda3/lib/python3.7/site-packages (from nbconvert->notebook>=4.0->jupyter_nbextensions_configurator) (0.5.0)
    Requirement already satisfied: python-dateutil>=2.1 in ./anaconda3/lib/python3.7/site-packages (from jupyter-client>=5.2.0->notebook>=4.0->jupyter_nbextensions_configurator) (2.7.5)
    Requirement already satisfied: MarkupSafe>=0.23 in ./anaconda3/lib/python3.7/site-packages (from jinja2->notebook>=4.0->jupyter_nbextensions_configurator) (1.1.0)
    Requirement already satisfied: appnope; sys_platform == "darwin" in ./anaconda3/lib/python3.7/site-packages (from ipython>=5.0.0->ipykernel->notebook>=4.0->jupyter_nbextensions_configurator) (0.1.0)
    Requirement already satisfied: prompt-toolkit<2.1.0,>=2.0.0 in ./anaconda3/lib/python3.7/site-packages (from ipython>=5.0.0->ipykernel->notebook>=4.0->jupyter_nbextensions_configurator) (2.0.7)
    Requirement already satisfied: backcall in ./anaconda3/lib/python3.7/site-packages (from ipython>=5.0.0->ipykernel->notebook>=4.0->jupyter_nbextensions_configurator) (0.1.0)
    Requirement already satisfied: jedi>=0.10 in ./anaconda3/lib/python3.7/site-packages (from ipython>=5.0.0->ipykernel->notebook>=4.0->jupyter_nbextensions_configurator) (0.13.2)
    Requirement already satisfied: pickleshare in ./anaconda3/lib/python3.7/site-packages (from ipython>=5.0.0->ipykernel->notebook>=4.0->jupyter_nbextensions_configurator) (0.7.5)
    Requirement already satisfied: pexpect; sys_platform != "win32" in ./anaconda3/lib/python3.7/site-packages (from ipython>=5.0.0->ipykernel->notebook>=4.0->jupyter_nbextensions_configurator) (4.6.0)
    Requirement already satisfied: webencodings in ./anaconda3/lib/python3.7/site-packages (from bleach->nbconvert->notebook>=4.0->jupyter_nbextensions_configurator) (0.5.1)
    Requirement already satisfied: wcwidth in ./anaconda3/lib/python3.7/site-packages (from prompt-toolkit<2.1.0,>=2.0.0->ipython>=5.0.0->ipykernel->notebook>=4.0->jupyter_nbextensions_configurator) (0.1.7)
    Requirement already satisfied: parso>=0.3.0 in ./anaconda3/lib/python3.7/site-packages (from jedi>=0.10->ipython>=5.0.0->ipykernel->notebook>=4.0->jupyter_nbextensions_configurator) (0.3.1)
    Requirement already satisfied: ptyprocess>=0.5 in ./anaconda3/lib/python3.7/site-packages (from pexpect; sys_platform != "win32"->ipython>=5.0.0->ipykernel->notebook>=4.0->jupyter_nbextensions_configurator) (0.6.0)
    (base) localhost:~ ligaijiang$ jupyter nbextensions_configurator enable --user
    Enabling: jupyter_nbextensions_configurator
    - Writing config: /Users/ligaijiang/.jupyter
        - Validating...
          jupyter_nbextensions_configurator 0.4.1 OK
    Enabling notebook nbextension nbextensions_configurator/config_menu/main...
    Enabling tree nbextension nbextensions_configurator/tree_tab/main...
    (base) localhost:~ ligaijiang$ 
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  • 原文地址:https://www.cnblogs.com/jpr-ok/p/13085364.html
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