Jupyter-matplotlib: Error displaying widget: model not found

Question

I'm trying to install jupyter-matplotlib extension but can't make it work in a jupyterlab instance. Once installed by following the steps here:
https://github.com/matplotlib/jupyter-matplotlib
I get the error when executing a simple example:
Error displaying widget: model not found
screen capture of described behaviour

Here's the output of my $ conda list for relevant packages:

ipykernel 5.1.1
ipympl 0.2.1
ipython 7.6.1
ipython_genutils 0.2.0
ipywidgets 7.5.0
jupyter_client 5.3.1
jupyter_core 4.4.0
jupyterlab 1.0.2
jupyterlab_server 1.0.0

Can you change the image to traceback as text?

Akshat Zala
– Akshat Zala

2020-08-18 08:36:10 +00:00
Commented Aug 18, 2020 at 8:36 — Akshat Zala
– Akshat Zala, Commented Aug 18, 2020 at 8:36

Paul · Accepted Answer · 2022-01-12 16:30:02Z

9

First you need to install:

 pip install ipywidgets

 conda install -c conda-forge ipympl

Then check if the following is OK:

!jupyter labextension list

You should see something like this:

JupyterLab v3.0.14
/home/jovyan/.local/share/jupyter/labextensions
    jupyter-leaflet v0.15.0 enabled OK
    jupyterlab-plotly v5.1.0 enabled OK
    @jupyter-widgets/jupyterlab-manager v3.0.0 enabled OK (python, jupyterlab_widgets)

The most important part is here:

Restart your jupyter notebook.

edited Jan 12, 2022 at 16:30

Paul

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answered Jan 12, 2022 at 12:55

Jalil Nourmohammadi Khiarak

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1 Comment

Yuri Santos Over a year ago

The labextension list shows OK, but I still got the same error Error displaying widget: model not found.

Mario Viti · Accepted Answer · 2019-07-14 22:26:24Z

8

Solved! Turned out ipywidget 7.5 breaks jupyter lab and it isaffecting other libraries too.

https://github.com/plotly/plotly.py/issues/1659

downgrading to 7 solved the issue for me (allthough 7 wrt 7.5 should be backward compatibile)!

Also be sure to match ipympl 0.2.1 with jupyter-matplotlib 0.3.0 labextension. jupyter labextension install [email protected]

edited Jul 14, 2019 at 22:26

answered Jul 14, 2019 at 21:30

Mario Viti

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1 Comment

EMT Over a year ago

I am still getting the error with the ipywidgets version 7.6.3

YATRIK PATEL · Accepted Answer · 2023-05-09 02:08:15Z

1

I also got the same error message when i first installed ipympl but it got solved automatically when I restarted the Jupyter lab.

answered May 9, 2023 at 2:08

YATRIK PATEL

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