Only "Loading widget..." but no Matplotlib figures (fresh install with conda)

Open

#170 opened on Jan 23, 2020 13 comments 4 reactions 0 assignees View on GitHub

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Assessment

Difficulty: 3/5
Estimated time: 1-2 days
Newbie friendliness: 35/100

Issue type: Bug
Clarity: Mostly clear
Activity status: Stale
Tech stack: jupyter-notebook, matplotlib
Domain: data-visualization, frontend

Research direction

Reproduce the issue using the listed conda installation and JupyterLab 1.2.5 setup, then compare the working ipywidgets Button with the matplotlib output that remains on “Loading widget...”. The fix is complete when matplotlib figures render instead of only showing the loading message.

Written by the indexing model from the issue text.

Description

Fresh install with conda (laptop with Ubuntu 18.04 => nothing to do with Docker).

Maybe related to #161 ?

Matplotlib figures do not show up and I get only

Loading widget...
[<matplotlib.lines.Line2D at 0x7fa9e8358e50>]

Standard installation with conda:

conda install -c conda-forge ipympl nodejs
jupyter labextension install @jupyter-widgets/jupyterlab-manager jupyter-matplotlib

jupyter labextension list
JupyterLab v1.2.5
Known labextensions:
   app dir: /home/marianne/miniconda3/share/jupyter/lab
        @jupyter-widgets/jupyterlab-manager v1.1.0  enabled  OK
        jupyter-matplotlib v0.5.0  enabled  OK

Note that ipywidgets seems to work fine. from ipywidgets import Button; Button(description='test') gives a button.

Dominant language: Jupyter Notebook
Stars: 1.7k
Forks: 234
PR merge metrics: No merged PRs in 30d

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