Jupyter nbextensions does not appear

Question

I tried to install jupyter_contrib_nbextensions : http://jupyter-contrib-nbextensions.readthedocs.io/en/latest/install.html

Everything worked fine but when I open a notebook nothing changes. I can't see the new tool bar that I'm supposed to see.

When I reinstall the Extension, the process is the same (I don't have a message tellign me that the files already exists). I don't have an error. So I can't figure out why it doesn't work.

Thanks a lot.

score 60 · Answer 1 · edited Dec 28 '19 at 20:31

60

Follow 3 steps: In Terminal

pip install jupyter_contrib_nbextensions
jupyter contrib nbextension install --user
jupyter nbextension enable varInspector/main

after this you will see "Vaildating: ok" Now you can open jupyter notebook you will see the require changes

edited Dec 28 '19 at 20:31

sjc

1,117
3
19
28

answered Dec 28 '19 at 19:46

Urmil Jindal

611
5
4

It later worked for me.. the mistake was I need to enable it on the Jupyter notebook. See my comments answer with image below. – rishi jain Apr 30 '20 at 11:29
8

The first command works fine; the second gives a traceback ending with `Exception: Jupyter command 'jupyter-contrib' not found.` Looking at @rishijain's answer, I don't have the Nbextensions tab. – Sigfried May 29 '20 at 10:39
2

What is varInspector/main? Is it necessary to get it working? – Yankee Mar 18 '21 at 23:06
I have previously installed it, however, I am facing the same issue. Extension menu not showing. 1. The first command shows, Requirement already satisfied for all extensions i have previously installed. 2.Second one shows, – Prasanta Bandyopadhyay Sep 17 '21 at 05:03

score 44 · Answer 2 · answered Jan 06 '21 at 16:25

44

Update Jan 2021
I was seeing this issue using the latest from pip packages.

Turns out it was related to: https://discourse.jupyter.org/t/the-static-notebook-js-mathjaxutils-js-is-missing/7303

Basically, jupyter-notebook moved a .js file in a recent update causing the extensions tab to no longer appear.

Reverting to an older version works-around the issue:

pip install notebook==6.1.5

Also note that a substantial number of the extensions aren't officially supported by the 6.x version. So you may be better off reverting to 5.x until your desired extensions are 'officially' supported:

pip install notebook==5.7.10

answered Jan 06 '21 at 16:25

driedler

3,750
33
26

2

This worked for me-- thank you. spend a whole day frustrated. – Alexander Hamilton Jan 06 '21 at 18:01
4

It seems `jupyter_contrib_nbextensions` on GitHub has dead. – Jks Liu Jan 12 '21 at 08:55
Thanks for saving me from wasting time on this issue – Van Cheng Jan 16 '21 at 07:31
2

Reverting notebook to 6.1.5 worked for me in Feb 2023. Tried some other solutions from this post - without success. – izkeros Feb 14 '23 at 04:35
1

This worked for me. FYI: It even worked with version 6.3.0. – KB_ Feb 27 '23 at 11:38
1

obligatory "that worked for me", had this issue into ubuntu2204 WSL image. – mrbTT Apr 13 '23 at 13:08

khari-sing · Answer 3 · 2020-08-30T04:09:10.233

11

Following are the commands which installs the jupyter nb_extensions

pip install jupyter_contrib_nbextensions
jupyter contrib nbextension install --user

The second command might give you below error:

jupyter contrib not found

Above command can be resolved as below:

- open cmd to install manually
cd .\Python\<your-python-version>\Lib\site-packages\jupyter_contrib_nbextensions
python application.py install
- Restart the jupyter notebook server

Note: Also make sure that your packages jupyter , notebook and your jupyter_contrib_nbextensions are installed for same version of python (and same --user if you have installed all your packages with --user flag)

edited Aug 30 '20 at 04:09

answered Aug 23 '20 at 14:15

khari-sing

650
6
16

I also had the 'not found' error and your method to install manually worked for me. But I used --user in my pip install, so it was installed in '.local/lib/python3.6/site-packages/jupyter_contrib_nbextensions' instead. Thanks! – Tickon Sep 17 '20 at 15:13
this worked for me in the latest version of jupyter. Thanks! . – carl Mar 07 '21 at 11:50
how can you verify that `jupyter`, `notebook`, and `jupyter_contrib_nbextensions` are installed with the same --user? – lauren.marietta Jul 11 '23 at 22:04
@lauren.marietta- If all installed under same , you will find your /home//.jupyter/nbconfig/notebook.json will now have load_extensions section – khari-sing Jul 13 '23 at 02:35

score 7 · Answer 4 · answered Jun 03 '18 at 03:45

7

First, follow this SO-post (go to the update) to install the extension. Then shutdown the notebook server. Then type $ jupyter nbextension enable varInspector/main. If it says OK, you can start your notebook and should see the crosshair.

answered Jun 03 '18 at 03:45

Tik0

2,499
4
35
50

score 7 · Answer 5 · answered Dec 06 '20 at 04:12

7

try to run this

jupyter contrib nbextension install --user

then relaunch the Jupyter notebook. this might solve the problem as it did for me.

answered Dec 06 '20 at 04:12

nima

81
1
3

1

In my environment the "Nbextensions" tab was showing up, but the extensions were not. I didn't run this command because they said in the documentation it is not needed if you run the conda command `conda install -c conda-forge jupyter_contrib_nbextensions`. After running the command mentioned in the answer the problem was solved. – muhammed-shihebi Jun 03 '21 at 08:16

score 6 · Answer 6 · answered Sep 08 '19 at 10:29

Try this out ->

1)Open Anaconda Prompt.

2)Type in -

conda install -c conda-forge jupyter_contrib_nbextensions

(if c is the default directory)

3)Proceed with the installation.

4)Exit the Anacodna prompt.

5)Relaunch Jupyter notebook. (You will now see nbextensions tab)

score 4 · Answer 7 · edited May 10 '22 at 14:54

4

Following steps with Anaconda Prompt ->

1)Open Anaconda Prompt.

2)Type in -

conda install -c conda-forge jupyter_contrib_nbextensions

Enter 'y' for installation.
type in jupyter contrib nbextension install --sys-prefix

4)Exit the Anacodna prompt.

5)Relaunch Jupyter notebook. (You will now see nbextensions tab)

Screenshot of my installation

edited May 10 '22 at 14:54

jeevu94

477
4
16

answered Feb 11 '22 at 16:21

Medini Bora

66
3

Your answer could be improved with additional supporting information. Please [edit] to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers [in the help center](/help/how-to-answer). – Community Feb 12 '22 at 15:55

score 3 · Answer 8 · answered Apr 30 '20 at 11:29

3

1 quick info -
1. even after enabling nbextensions, from the notebooks tree page,
2. you need to activate it on your Jupyter notebook. See below.

answered Apr 30 '20 at 11:29

rishi jain

1,524
1
19
26

score 2 · Answer 9 · answered Apr 10 '20 at 15:14

2

Running following command one by one !!!

pip install jupyter_contrib_nbextensions
jupyter contrib nbextension install --user
jupyter nbextension enable spellchecker/main
jupyter nbextension enable codefolding/main

answered Apr 10 '20 at 15:14

Welcome_back

1,245
12
18

score 2 · Answer 10 · answered Feb 08 '23 at 21:15

UPDATE, FEBRUARY 2023:

I first installed nbextensions using pip. Then I couldn't run the second command jupyter contrib nbextension install --user as the others and got the error Exception: Jupyter command 'jupyter-contrib' not found.

So, I tried installing using conda with this command:

conda install -c conda-forge jupyter_contrib_nbextensions

NOTE 1: I had to run my Anaconda prompt in "Administration Mode" in order to be able to install using conda.

After that I could run the second command:

jupyter contrib nbextension install --user

And it's working now.

NOTE 2: I'm using the latest version of anaconda so I DID NOT need to revert my jupyter version as mentioned here.

score 1 · Answer 11 · answered Dec 16 '20 at 19:08

Posting this solution because it took me 20 minutes to figure out why my interface looked so different from all of the screenshots everyone else was posting. I hope it can prevent some other soul from making the same mistake I did:

I was running my Jupyter Notebook with the command jupyter-lab instead of jupyter notebook. I understand there are functional differences between the two, but in my case having spellcheck was much more important than any of the difference the two provided. As soon as I used jupyter notebook instead, it worked perfectly.

score 1 · Answer 12 · answered Aug 23 '23 at 09:13

Update: August, 2023

Here's what solved the problem for me (I copy&paste my answer from a related question below):

conda update --all
conda install -c anaconda notebook 
conda install -c conda-forge jupyter_contrib_nbextensions

Then, jupyter contrib nbextension install --user executes without error.

Now you can install and enable jupyter extensions (e.g. black) like this:

jupyter nbextension install https://github.com/drillan/jupyter-black/archive/master.zip --user
jupyter nbextension enable jupyter-black-master/jupyter-black

score 0 · Answer 13 · edited Jan 13 '21 at 01:43

0

Downgrading the notebook version to 5.6.0 worked for me.

pip install notebook==5.6.0

If this doesn't work for you, then return to your original version.

Good luck.

edited Jan 13 '21 at 01:43

Todd Burus

963
1
6
20

answered Jan 12 '21 at 05:50

Treamy

1

score 0 · Answer 14 · answered May 13 '22 at 20:29

I followed the highest voted answer to install the nbextensions but received an error when I reboot the Jupyter Notebook:

404 GET /nbextensions/nbextensions_configurator/tree_tab/main.js?v=20220513151408

It seemed that what I've installed can not be found by Jupyter Notebook.

After checking the detailed installation log in the terminal, I found Nbextension has been installed into the python2.7 directory:

./Library/Python/2.7/lib/python/site-packages (from jupyter_contrib_nbextensions)

I am currently using Python 3 in Jupyter Notebook so I decided to uninstall what I have and reinstall Nbextension using pip3 instead of pip. Then I reboot Jupyter Notebook and saw the Nbextensions tab (next to the tab Clusters)!

In sum, based on my attempt, I would recommend using pip3 instead of pip to avoid an installation in Python 2 directory.

ocean11 · Answer 15 · 2023-02-20T17:48:18.733

My installed package version (windows 11):

notebook                          6.5.2
jupyter-contrib-nbextensions      0.7.0
jupyter-nbextensions-configurator 0.6.1

Though I can not get the nbextensions menu tab out using the methods mentioned in the previous try outs of this post, I can still use the jupyter nbextension enable <require path> command in the ../python3/scripts folder as following examples which I use frequently:

jupyter nbextension enable varInspector/main
jupyter nbextension enable toc2/main
jupyter nbextension enable execute_time/ExecuteTime
jupyter nbextension enable hide_input/main
jupyter nbextension enable splitcell/splitcell
jupyter nbextension enable code_prettify/code_prettify

Then the variable inspector, table of contents, split cell, hide inputs and code prettify buttons appear in the notebook page. Other extensions can be tried replacing command's <require path> which can be found under the older version's notebook extensions tab that doesn't have the problem.

score 0 · Answer 16 · answered May 06 '23 at 09:57

Below commands are helpful to install nbextention

pip install notebook jupyter_contrib_nbextensions jupyter contrib nbextension install --user jupyter nbextension enable varInspector/main

Impotant Note: make sure that packages jupyter , notebook and jupyter_contrib_nbextensions are installed for with same version of python and same --user flog For example: In my system python3.7 and python3.9 were both installed but when I run pip3 install notebook jupyter_contrib_nbextensions , nbextension installed in python3.9 due to this jupyter contrib nbextension install --user not working but once is used pip3.7 install notebook jupyter_contrib_nbextensions for specific python3.7 then everything working fine.

ibanez1980 · Answer 17 · 2023-05-23T19:54:59.710

0

The only solution that worked for me is this simple line of code:

pip install jupyter_contrib_nbextensions "nbclassic<0.5"

No need to downgrade your jupyter notebook version.If you install a version of nbclassic>0.5 the nbextensions tab WILL NOT be visible when you run the jupyter server.Hope this helps you!Good luck!

edited May 23 '23 at 19:54

answered May 23 '23 at 19:52

ibanez1980

1
2

score 0 · Answer 18 · answered Jun 20 '23 at 06:57

Step 1: Execute the following commands to install and configure jupyter_contrib_nbextensions and nbextensions_configurator:

pip install jupyter_contrib_nbextensions
jupyter contrib nbextension install --user
pip install jupyter_nbextensions_configurator
jupyter nbextensions_configurator enable --user

If nbextensions is not displayed yet,

Step 2: Check whether the notebook version is higher than 6.1.5. If it is higher, you can use the following command to reinstall it.

pip install notebook==6.1.5

I tested this method on Mac and Ubuntu can solve the problem.

score 0 · Answer 19 · edited Jul 18 '23 at 07:39

As many of the answers say, reducing the version of your notebook is the best solution, especially if you try the myriad of anaconda-promote commands.

Here is my version now, notebook from 7.5. to 6.4.8*

As text for easy copying:

IPython: 8.10.0
ipykernel: 6.19.2
ipywidgets: 7.6.5
jupyter_client: 7.3.4
jupyter_core : 5.2.0
jupyter_server : 1.23.4
jupyterlab: 3.5.3
nbclient: 0.5.13
nbconvert: 6.5.4
nbformat: 5.7.0
notebook: 6.4.8
qtconsole: 5.4.0
traitlets: 5.7.1

score -1 · Answer 20 · edited Jan 15 '21 at 11:33

-1

Change old path notebook/js/mathjaxutils to base/js/mathjaxutils.js to load the dependency correctly.

enter image description here

This solve my problem.

For details see this Github issue about this bug.

edited Jan 15 '21 at 11:33

4b0

21,981
30
95
142

answered Jan 15 '21 at 11:05

meng zhou

1

2

No images of code please. Paste your code here. – Sabito stands with Ukraine Jan 15 '21 at 11:08

Amir hosein Sedaghati · Answer 21 · 2023-04-22T22:54:42.647

You can install or uninstall any extension you want manually if not shown the nbextensions tab in the Jupyter Notebook server after you are ensured you have installed jupyter_contrib_nbextensions and enabled the nbextensions configurator using the following commands.

install Jupyter Notebook extensions

conda install -c conda-forge jupyter_contrib_nbextensions

enable the nbextensions configurator

jupyter nbextensions_configurator enable --user

To install extensions manually, You can use one of these following syntax

jupyter nbextensions enable/disable extension_name/extension_name

Or

jupyter nbextensions enable/disable extension_name/main

You are able to find and replace the name of your arbitrary extensions with 'extension_name' using the list of provided nbextensions

for instance, you can install or uninstall the following extensions as shown below

Toggle all line numbers

jupyter nbextension enenable/disable toggle_all_line_numbers/main

Highlighter

jupyter nbextension enable/disable highlighter/highlighter

Variable Inspector

jupyter nbextension enable/disable varInspector/main

Hinterland

jupyter nbextension enable/disable hinterland/hinterland

Note: After You got "Vaildating: ok", You have to shut down the Kernel to be able to use the installed extensions in Notebooks.

Although the extensions have been installed and activated and I get the validation success message. It doesn't work. With conda: 23.3.1, jupyter_client : 7.3.4 jupyter_core : 5.2.0 jupyter_server : 1.23.4 jupyterlab : 3.5.3 nbclient : 0.5.13 nbconvert : 6.5.4 nbformat : 5.7.0 notebook : 6.5.2 — Augusto Sisa, May 02 '23 at 03:23
Downgrading to conda 22.9.0 jupyter_core : 4.11.1 jupyter_server : 1.18.1 jupyterlab : 3.4.4 nbconvert : 6.4.4 nbformat : 5.5.0 notebook : 6.4.12. NBextensions worked again. (With some warnings about `template_path`) — Augusto Sisa, May 02 '23 at 05:22

Jupyter nbextensions does not appear

21 Answers21

install Jupyter Notebook extensions

enable the nbextensions configurator

To install extensions manually, You can use one of these following syntax

Linked