# Notebook

**URL:** https://discourse.jupyter.org/c/notebook/31.md?page=1

[Latest](https://discourse.jupyter.org/latest.md) · [Categories](https://discourse.jupyter.org/categories.md) · [Tags](https://discourse.jupyter.org/tags.md)

**Page:** 2

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## [Referenced variables in markdown do not appear when exporting to other format like HTML](https://discourse.jupyter.org/t/referenced-variables-in-markdown-do-not-appear-when-exporting-to-other-format-like-html/8218)

<div class="topic-metadata">

**Author:** [@Bvb092](https://discourse.jupyter.org/u/Bvb092)\
**Replies:** 1\
**Last updated:** [February 21, 2026, 11:01pm UTC](https://discourse.jupyter.org/t/referenced-variables-in-markdown-do-not-appear-when-exporting-to-other-format-like-html/8218 "2026-02-21T23:01:25Z")

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Dear all I have created a jupyter notebook and now tried to export it to other formats like HTML. My problem is that I have markdown cells with references to variables (with {{}}). When I export it does variable values …

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## [Comando index não ativado](https://discourse.jupyter.org/t/comando-index-nao-ativado/38416)

<div class="topic-metadata">

**Author:** [@Felippe\_Albergaria](https://discourse.jupyter.org/u/Felippe_Albergaria)\
**Replies:** 0\
**Last updated:** [February 18, 2026, 9:41pm UTC](https://discourse.jupyter.org/t/comando-index-nao-ativado/38416 "2026-02-18T21:41:00Z")

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I can,t enable the INDEX. Do you know which library it,s licated?

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## [Cant’t find the open command for ipynb files](https://discourse.jupyter.org/t/cant-t-find-the-open-command-for-ipynb-files/38402)

<div class="topic-metadata">

**Author:** [@Senmeis](https://discourse.jupyter.org/u/Senmeis)\
**Replies:** 5\
**Last updated:** [February 18, 2026, 5:14pm UTC](https://discourse.jupyter.org/t/cant-t-find-the-open-command-for-ipynb-files/38402 "2026-02-18T17:14:40Z")

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Hi, my Jupyter Notebook screenshot in Windows 10 looks like in the attachment. The problem is I can’t find the open command for my own ipynb files. Can anyone help ?

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## [Nb\_conda\_kernels not seen in the jupyterhub notebook](https://discourse.jupyter.org/t/nb-conda-kernels-not-seen-in-the-jupyterhub-notebook/38388)

<div class="topic-metadata">

**Author:** [@Sachin\_Gautam](https://discourse.jupyter.org/u/Sachin_Gautam)\
**Replies:** 0\
**Last updated:** [February 10, 2026, 5:19pm UTC](https://discourse.jupyter.org/t/nb-conda-kernels-not-seen-in-the-jupyterhub-notebook/38388 "2026-02-10T17:19:41Z")

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Building the custom nb\_conda\_kernels for the notebook. DockerFile: This includes cublas and cudnn FROM nvidia/cuda:12.1.1-cudnn8-runtime-rockylinux8 USER root RUN echo “new run” python/system deps RUN yum -y updat…

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## [Issue with selecting multiple images](https://discourse.jupyter.org/t/issue-with-selecting-multiple-images/38379)

<div class="topic-metadata">

**Author:** [@nasrin\_begum\_pathan](https://discourse.jupyter.org/u/nasrin_begum_pathan)\
**Replies:** 3\
**Last updated:** [February 8, 2026, 6:18pm UTC](https://discourse.jupyter.org/t/issue-with-selecting-multiple-images/38379 "2026-02-08T18:18:59Z")

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I am trying to select multiple images to delete them and I see “Move to Trash” option is only available if I select one of the image and then all options. Directly if I select all options then it doesn’t show “Move to Tr…

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## [\[nbformat\] Clarify normalize() behavior in 5.5.0 changelog](https://discourse.jupyter.org/t/nbformat-clarify-normalize-behavior-in-5-5-0-changelog/38380)

<div class="topic-metadata">

**Author:** [@SAKSHI-DOT693](https://discourse.jupyter.org/u/SAKSHI-DOT693)\
**Replies:** 0\
**Last updated:** [February 6, 2026, 8:40pm UTC](https://discourse.jupyter.org/t/nbformat-clarify-normalize-behavior-in-5-5-0-changelog/38380 "2026-02-06T20:40:16Z")

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Hi everyone, I’m currently contributing to nbformat documentation and had a question regarding the changelog entry for version 5.5.0. Specifically, the explanation around the normalize behavior is not fully clear to m…

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## [How to display Python objects with nested data structure nicely?](https://discourse.jupyter.org/t/how-to-display-python-objects-with-nested-data-structure-nicely/31938)

<div class="topic-metadata">

**Author:** [@kdlin1](https://discourse.jupyter.org/u/kdlin1)\
**Replies:** 5\
**Last updated:** [February 6, 2026, 4:53pm UTC](https://discourse.jupyter.org/t/how-to-display-python-objects-with-nested-data-structure-nicely/31938 "2026-02-06T16:53:54Z")

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Hi, I run Jupyter notebooks inside VS Code. I need some help on displaying objects with nested data structure so that I can inspect their contents. The following is an example. Thanks.

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## [Cant connect to postgres db](https://discourse.jupyter.org/t/cant-connect-to-postgres-db/38357)

<div class="topic-metadata">

**Author:** [@Lucky\_de\_Silva](https://discourse.jupyter.org/u/Lucky_de_Silva)\
**Replies:** 3\
**Last updated:** [January 25, 2026, 11:29pm UTC](https://discourse.jupyter.org/t/cant-connect-to-postgres-db/38357 "2026-01-25T23:29:14Z")

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The following was used to connect Jupyter notebook to postgres database resulting in the following error. The sql user and sql password have been set up as env variables. %load\_ext sql import os host = “localhost” d…

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## [How to enable JavaScript to pass information in the new version of Jupyter?](https://discourse.jupyter.org/t/how-to-enable-javascript-to-pass-information-in-the-new-version-of-jupyter/38341)

<div class="topic-metadata">

**Author:** [@xiaoshizixin](https://discourse.jupyter.org/u/xiaoshizixin)\
**Replies:** 1\
**Last updated:** [January 22, 2026, 5:27pm UTC](https://discourse.jupyter.org/t/how-to-enable-javascript-to-pass-information-in-the-new-version-of-jupyter/38341 "2026-01-22T17:27:58Z")

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I plan to create an interactive presentation file using Jupyter. Therefore, I want to utilize the abundant display capabilities of the web. I aim to be able to concatenate strings in Python code to control the output and…

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## [Noteook on Android fails to connect and cannot store/retrieve .ipynb files](https://discourse.jupyter.org/t/noteook-on-android-fails-to-connect-and-cannot-store-retrieve-ipynb-files/38260)

<div class="topic-metadata">

**Author:** [@Robin](https://discourse.jupyter.org/u/Robin)\
**Replies:** 1\
**Last updated:** [January 22, 2026, 2:31pm UTC](https://discourse.jupyter.org/t/noteook-on-android-fails-to-connect-and-cannot-store-retrieve-ipynb-files/38260 "2026-01-22T14:31:36Z")

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I have been using Pydroid3 for several years to run Jupyter Notebook. Always worked fine! Recently (a few months ago) the terminal reports the following message when calling http:// localhost:8888/tree Unable to connec…

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## [Notebook on Android via Pydroid3 : Fetch issue](https://discourse.jupyter.org/t/notebook-on-android-via-pydroid3-fetch-issue/38155)

<div class="topic-metadata">

**Author:** [@Olivier\_Daude](https://discourse.jupyter.org/u/Olivier_Daude)\
**Replies:** 2\
**Last updated:** [January 19, 2026, 4:24pm UTC](https://discourse.jupyter.org/t/notebook-on-android-via-pydroid3-fetch-issue/38155 "2026-01-19T16:24:47Z")

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I am trying to run Notebook on the padlets of my students for my course on Python. The Région provides each year new students in high school with a padlet ; this year, like the last one, they are Lenovo padlets running o…

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## [How to delete toolbar?](https://discourse.jupyter.org/t/how-to-delete-toolbar/38314)

<div class="topic-metadata">

**Author:** [@gc\_S](https://discourse.jupyter.org/u/gc_S)\
**Replies:** 0\
**Last updated:** [January 13, 2026, 7:55am UTC](https://discourse.jupyter.org/t/how-to-delete-toolbar/38314 "2026-01-13T07:55:13Z")

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How to make the toolbar disappear? Not one button or some,I want to delete all the toolbar. The part enclosed by the red line in the picture.

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## [No tabs in Jupyter Notebook](https://discourse.jupyter.org/t/no-tabs-in-jupyter-notebook/38201)

<div class="topic-metadata">

**Author:** [@Senmeis](https://discourse.jupyter.org/u/Senmeis)\
**Replies:** 5\
**Last updated:** [January 12, 2026, 3:18pm UTC](https://discourse.jupyter.org/t/no-tabs-in-jupyter-notebook/38201 "2026-01-12T15:18:50Z")

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Hi, I’ve installed Jupyter Notebook on my Windows 10 laptop. The problem is there’s no tabs such as File, Edit, View and so on as usual. My screenshot is attached. What’s wrong with it?

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## [Unable to open jupyter notebook from cmd](https://discourse.jupyter.org/t/unable-to-open-jupyter-notebook-from-cmd/38300)

<div class="topic-metadata">

**Author:** [@Sofia\_Meng](https://discourse.jupyter.org/u/Sofia_Meng)\
**Replies:** 3\
**Last updated:** [January 12, 2026, 5:00am UTC](https://discourse.jupyter.org/t/unable-to-open-jupyter-notebook-from-cmd/38300 "2026-01-12T05:00:35Z")

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Hi, I have been using jupyter notebook for about a year, decided to install an old offline game which required some DirectX 9 and old version VS C++ installations, and suddenly unable to start jupyter notebook after this…

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## [Updating a plot and displaying it \[Solved\]](https://discourse.jupyter.org/t/updating-a-plot-and-displaying-it-solved/38294)

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**Author:** [@mbaz](https://discourse.jupyter.org/u/mbaz)\
**Replies:** 6\
**Last updated:** [January 9, 2026, 5:54pm UTC](https://discourse.jupyter.org/t/updating-a-plot-and-displaying-it-solved/38294 "2026-01-09T17:54:20Z")

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I want to build a plot with multiple lines, one cell at a time, and show the intermediate results. However, the plot is only displayed in the first cell. Here is an example (if there is a preferred way to share a notebo…

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## [404 error when going to https://ipython.org/documentation.html](https://discourse.jupyter.org/t/404-error-when-going-to-https-ipython-org-documentation-html/38274)

<div class="topic-metadata">

**Author:** [@dsavage](https://discourse.jupyter.org/u/dsavage)\
**Replies:** 3\
**Last updated:** [January 4, 2026, 5:08pm UTC](https://discourse.jupyter.org/t/404-error-when-going-to-https-ipython-org-documentation-html/38274 "2026-01-04T17:08:51Z")

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When clicking on the IPython Reference (under Help menu option), the html page mentioned in the Topic above resulted in a 404 file mnot found error.

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## [Cannot remove an old kernel from Jupyter Notebook](https://discourse.jupyter.org/t/cannot-remove-an-old-kernel-from-jupyter-notebook/38272)

<div class="topic-metadata">

**Author:** [@empet](https://discourse.jupyter.org/u/empet)\
**Replies:** 1\
**Last updated:** [January 3, 2026, 10:32pm UTC](https://discourse.jupyter.org/t/cannot-remove-an-old-kernel-from-jupyter-notebook/38272 "2026-01-03T22:32:53Z")

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For years when I installed a new version of Python or Julia, I removed the old kernel with the following command, in Anaconda prompt or from the corresponding environment: jupyter kernelspec remove kernel\_name\_and\_vers…

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## [File ID error – The file cannot be opened because its file ID could not be retrieved.](https://discourse.jupyter.org/t/file-id-error-the-file-cannot-be-opened-because-its-file-id-could-not-be-retrieved/38269)

<div class="topic-metadata">

**Author:** [@S.T\_Franken](https://discourse.jupyter.org/u/S.T_Franken)\
**Replies:** 2\
**Last updated:** [January 3, 2026, 3:44pm UTC](https://discourse.jupyter.org/t/file-id-error-the-file-cannot-be-opened-because-its-file-id-could-not-be-retrieved/38269 "2026-01-03T15:44:43Z")

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Hi, In the online JupyterLab environment I’m unable to open any .ipynb notebooks, including newly created ones. I keep getting this error: File ID error – The file cannot be opened because its file ID could not be re…

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## [Plot interactivity broken, even in notebooks where it worked before](https://discourse.jupyter.org/t/plot-interactivity-broken-even-in-notebooks-where-it-worked-before/38254)

<div class="topic-metadata">

**Author:** [@arosko](https://discourse.jupyter.org/u/arosko)\
**Replies:** 14\
**Last updated:** [December 30, 2025, 9:41pm UTC](https://discourse.jupyter.org/t/plot-interactivity-broken-even-in-notebooks-where-it-worked-before/38254 "2025-12-30T21:41:38Z")

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Earlier this week, I created a new notebook, and matplotlib plots were not interactive using %matplotlib widget. In particular for my use case, 3D plots aren’t rotatable, but zooming and panning doesn’t work either. The …

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## [Charts not rendering in Jupyter notebook](https://discourse.jupyter.org/t/charts-not-rendering-in-jupyter-notebook/37851)

<div class="topic-metadata">

**Author:** [@hm2025](https://discourse.jupyter.org/u/hm2025)\
**Replies:** 4\
**Last updated:** [December 16, 2025, 2:18pm UTC](https://discourse.jupyter.org/t/charts-not-rendering-in-jupyter-notebook/37851 "2025-12-16T14:18:54Z")

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Hello, I am trying to run some very basic charts in my notebook but on executing nothing happens - no image render. I browsed thru some Internet forums and tried some recommendations but none of them seem to resolve the …

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## [Input() stops working after a while](https://discourse.jupyter.org/t/input-stops-working-after-a-while/38232)

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**Author:** [@Ayame](https://discourse.jupyter.org/u/Ayame)\
**Replies:** 1\
**Last updated:** [December 14, 2025, 5:34pm UTC](https://discourse.jupyter.org/t/input-stops-working-after-a-while/38232 "2025-12-14T17:34:43Z")

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Hi! I’m on version 7.5.0. So I’m one of the newbies who’s doing their first python course right now, and yes, we use input() a lot. I made a little hangman game, so I have to put in a lot of stuff, meaning the input fi…

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## [Keyboard shortcut ('O") interfering with input()](https://discourse.jupyter.org/t/keyboard-shortcut-o-interfering-with-input/38205)

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**Author:** [@Britt\_Lowry](https://discourse.jupyter.org/u/Britt_Lowry)\
**Replies:** 6\
**Last updated:** [December 11, 2025, 5:40pm UTC](https://discourse.jupyter.org/t/keyboard-shortcut-o-interfering-with-input/38205 "2025-12-11T17:40:33Z")

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I’ve installed Jupyter Notebook 3 times today on a new computer hoping to fix the problem with a keyboard shortcut. If the user types ‘o’ anywhere in response to an input() command, the text box disappears and all you se…

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## [Jupyter Datascience Notebook Websocket ping timeout error](https://discourse.jupyter.org/t/jupyter-datascience-notebook-websocket-ping-timeout-error/38090)

<div class="topic-metadata">

**Author:** [@Anik\_Du](https://discourse.jupyter.org/u/Anik_Du)\
**Replies:** 4\
**Last updated:** [December 10, 2025, 9:33am UTC](https://discourse.jupyter.org/t/jupyter-datascience-notebook-websocket-ping-timeout-error/38090 "2025-12-10T09:33:15Z")

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Hello, I have been using the Jupyter Datascience notebook deployed through ArgoCD + Kubernetes for 2 years. I never had an issue with this notebook until last Friday (31st October, 2025). Suddenly, the Kubernetes Pod st…

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## [Compiling nbconvert with Nuitka](https://discourse.jupyter.org/t/compiling-nbconvert-with-nuitka/38217)

<div class="topic-metadata">

**Author:** [@miek770](https://discourse.jupyter.org/u/miek770)\
**Replies:** 2\
**Last updated:** [December 9, 2025, 1:03am UTC](https://discourse.jupyter.org/t/compiling-nbconvert-with-nuitka/38217 "2025-12-09T01:03:21Z")

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Hi, does anyone here have any experience with compiling nbconvert with Nuitka? Even with the compilation option –-include-package-data=nbconvert I’m still getting this error with the compiled executable: ImportError: ca…

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## [Pip uninstall (and other interactive cli stuffs)](https://discourse.jupyter.org/t/pip-uninstall-and-other-interactive-cli-stuffs/38191)

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**Author:** [@imavirgo](https://discourse.jupyter.org/u/imavirgo)\
**Replies:** 0\
**Last updated:** [December 2, 2025, 7:57pm UTC](https://discourse.jupyter.org/t/pip-uninstall-and-other-interactive-cli-stuffs/38191 "2025-12-02T19:57:07Z")

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I’m in anaconda latest. Let’s say in cell 1 I do import sys !{sys.executable} -m pip install schemdraw And in cell 2 I do import sys !{sys.executable} -m pip uninstall schemdraw The kernel locks in busy because it’…

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## [Is there an option to enable cellmagic on every cell?](https://discourse.jupyter.org/t/is-there-an-option-to-enable-cellmagic-on-every-cell/17852)

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**Author:** [@kolibril13](https://discourse.jupyter.org/u/kolibril13)\
**Replies:** 7\
**Last updated:** [November 29, 2025, 9:32am UTC](https://discourse.jupyter.org/t/is-there-an-option-to-enable-cellmagic-on-every-cell/17852 "2025-11-29T09:32:20Z")

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It would be interesting if there was an option to decorate every single cell in a notebook with a cell magic without doing that manually. That could be e.g. a function run\_all\_cells\_with\_magic('%%timeit') That way, it …

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## [Help me: load data](https://discourse.jupyter.org/t/help-me-load-data/38161)

<div class="topic-metadata">

**Author:** [@WangPython](https://discourse.jupyter.org/u/WangPython)\
**Replies:** 1\
**Last updated:** [November 26, 2025, 6:17pm UTC](https://discourse.jupyter.org/t/help-me-load-data/38161 "2025-11-26T18:17:49Z")

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Hi, I have a load data problem. code has an error:import numpy as np import pandas as pd 1) Charger fichier data = pd.read\_csv(“Neuro2025\_005\_2025\_11\_25\_Marker.txt”, sep=‘\\t’, header=None) 2) Reshape en (time, 23 ma…

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## [How to run a single line of code？](https://discourse.jupyter.org/t/how-to-run-a-single-line-of-code/38100)

<div class="topic-metadata">

**Author:** [@Caesium](https://discourse.jupyter.org/u/Caesium)\
**Replies:** 1\
**Last updated:** [November 20, 2025, 10:53am UTC](https://discourse.jupyter.org/t/how-to-run-a-single-line-of-code/38100 "2025-11-20T10:53:56Z")

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When I want ro run the code using Jupyter Notebook in Pycharm, I can only run a cell or all. But indeed I just want to run a single line of code. Is there any method to just run a single line ?

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## [Necessary kernel.json to have two different python 3 versions selectable](https://discourse.jupyter.org/t/necessary-kernel-json-to-have-two-different-python-3-versions-selectable/38142)

<div class="topic-metadata">

**Author:** [@birdy](https://discourse.jupyter.org/u/birdy)\
**Replies:** 1\
**Last updated:** [November 20, 2025, 10:42am UTC](https://discourse.jupyter.org/t/necessary-kernel-json-to-have-two-different-python-3-versions-selectable/38142 "2025-11-20T10:42:53Z")

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I have the following kernel.json which works but notice the comments, to remind me to replace the “4” by a “3” in two places if I need to use python 3.13 Can someone please tell me how to modify this json file (or creat…

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## [I'm Facing Same problem When I'm trying to open new data set in new Notebook file ,Im doing all needed formalities ,like uploading .csv file ,the importing libraries, copying path,etc... Can anyone please tell me what should i do?](https://discourse.jupyter.org/t/im-facing-same-problem-when-im-trying-to-open-new-data-set-in-new-notebook-file-im-doing-all-needed-formalities-like-uploading-csv-file-the-importing-libraries-copying-path-etc-can-anyone-please-tell-me-what-should-i-do/38116)

<div class="topic-metadata">

**Author:** [@Omkarkharat2709](https://discourse.jupyter.org/u/Omkarkharat2709)\
**Replies:** 2\
**Last updated:** [November 12, 2025, 11:21pm UTC](https://discourse.jupyter.org/t/im-facing-same-problem-when-im-trying-to-open-new-data-set-in-new-notebook-file-im-doing-all-needed-formalities-like-uploading-csv-file-the-importing-libraries-copying-path-etc-can-anyone-please-tell-me-what-should-i-do/38116 "2025-11-12T23:21:38Z")

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I am getting such type of error when i am trying to open any new data set in new notebook , I did all the things which are needed like upload file .csv file in notebook, importing libraries etc… but still I’m getting the…

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