LaTeX labels not rendering in the ipywidgets controls

[orome]

Description

LaTeX labels not rendering in the ipywidgets controls in my JupyterLab notebook?

For me, this

r=widgets.FloatSlider(min=1, max=4, step=0.02, value=3.08, continuous_update=True, description='$r$'), 
steps=widgets.IntSlider(min=2, max=500, step=1, value=20, continuous_update=True, description='$n_{max}$'),  
x0=widgets.FloatSlider(min=0.1, max=1.0, step=0.1, value=0.1, continuous_update=True, description='$x_0$'), 
...

results in:

FWIW I get the same behavior (no rendering as LaTeX) when I enter the example from the docs in my notebook, and the example in the docs themselves don't work either, (though the older docs render fine).

See related forum question.

Reproduce

The simplest way to reproduce is:

1. Navigate to the relevant section of the current docs
2. Note that the LaTeX doesn't render

Expected behavior

LaTeX should render as specified in controls

Context

• ipywidgets version: 8.1.1
• Operating System and version: macOS 14.0, iOS 7.0.3
• Browser and version: Safari 17.0, Firefox 118.0.2, Chrome 117.0.5938.149

Troubleshoot Output

$PATH:
	/Users/Orome/Documents/Projects/Coding/Python/venvs/logisticmap/bin
	/usr/local/MacGPG2/bin
	/opt/homebrew/opt/ruby/bin
	/opt/homebrew/opt/[email protected]/libexec/bin
	/Applications/Araxis Merge.app/Contents/Utilities
	/opt/homebrew/bin
	/opt/homebrew/sbin
	/Users/Orome/.cabal/bin
	/usr/local/bin
	/usr/bin
	/bin
	/usr/sbin
	/sbin
	/Users/Orome/bin
	/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin
	/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin
	/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin
	/opt/X11/bin
	/Library/Apple/usr/bin
	/usr/local/MacGPG2/bin
	/Library/TeX/texbin
	/Applications/Little Snitch.app/Contents/Components
	/opt/homebrew/lib/ruby/gems/3.2.0/bin
	/opt/homebrew/opt/ghc@9/bin
sys.path:

/Users/Orome/Documents/Projects/Coding/Python/venvs/logisticmap/bin

/opt/homebrew/Cellar/[email protected]/3.12.0/Frameworks/Python.framework/Versions/3.12/lib/python312.zip

/opt/homebrew/Cellar/[email protected]/3.12.0/Frameworks/Python.framework/Versions/3.12/lib/python3.12

/opt/homebrew/Cellar/[email protected]/3.12.0/Frameworks/Python.framework/Versions/3.12/lib/python3.12/lib-dynload

/Users/Orome/Documents/Projects/Coding/Python/venvs/logisticmap/lib/python3.12/site-packages
sys.executable:

/Users/Orome/Documents/Projects/Coding/Python/venvs/logisticmap/bin/python
sys.version:

3.12.0 (main, Oct  2 2023, 12:03:24) [Clang 15.0.0 (clang-1500.0.40.1)]
platform.platform():

macOS-14.0-arm64-arm-64bit
which -a jupyter:

/Users/Orome/Documents/Projects/Coding/Python/venvs/logisticmap/bin/jupyter

/opt/homebrew/bin/jupyter
pip list:

Package                   Version

------------------------- ---------

anyio                     4.0.0

appnope                   0.1.3

argon2-cffi               23.1.0

argon2-cffi-bindings      21.2.0

arrow                     1.3.0

asttokens                 2.4.0

async-lru                 2.0.4

attrs                     23.1.0

Babel                     2.13.0

backcall                  0.2.0

beautifulsoup4            4.12.2

bleach                    6.1.0

certifi                   2023.7.22

cffi                      1.16.0

charset-normalizer        3.3.0

comm                      0.1.4

contourpy                 1.1.1

cycler                    0.12.0

debugpy                   1.8.0

decorator                 5.1.1

defusedxml                0.7.1

executing                 2.0.0

fastjsonschema            2.18.1

fonttools                 4.43.1

fqdn                      1.5.1

idna                      3.4

ipykernel                 6.25.2

ipympl                    0.9.3

ipython                   8.16.1

ipython-genutils          0.2.0

ipywidgets                8.1.1

isoduration               20.11.0

jedi                      0.19.1

Jinja2                    3.1.2

json5                     0.9.14

jsonpointer               2.4

jsonschema                4.19.1

jsonschema-specifications 2023.7.1

jupyter_client            8.3.1

jupyter_core              5.3.2

jupyter-events            0.7.0

jupyter-lsp               2.2.0

jupyter_server            2.7.3

jupyter_server_terminals  0.4.4

jupyterlab                4.0.6

jupyterlab_server         2.25.0

jupyterlab-widgets        3.0.9

kiwisolver                1.4.5

MarkupSafe                2.1.3

matplotlib                3.8.0

matplotlib-inline         0.1.6

mistune                   3.0.2

nbclient                  0.8.0

nbconvert                 7.9.2

nbformat                  5.9.2

nest-asyncio              1.5.8

notebook                  7.0.4

notebook_shim             0.2.3

numpy                     1.26.0

overrides                 7.4.0

packaging                 23.2

pandocfilters             1.5.0

parso                     0.8.3

pexpect                   4.8.0

pickleshare               0.7.5

Pillow                    10.0.1

pip                       23.2.1

platformdirs              3.11.0

prometheus-client         0.17.1

prompt-toolkit            3.0.39

psutil                    5.9.5

ptyprocess                0.7.0

pure-eval                 0.2.2

pycparser                 2.21

Pygments                  2.16.1

pyparsing                 3.1.1

python-dateutil           2.8.2

python-json-logger        2.0.7

PyYAML                    6.0.1

pyzmq                     25.1.1

referencing               0.30.2

requests                  2.31.0

rfc3339-validator         0.1.4

rfc3986-validator         0.1.1

rpds-py                   0.10.4

Send2Trash                1.8.2

six                       1.16.0

sniffio                   1.3.0

soupsieve                 2.5

stack-data                0.6.3

terminado                 0.17.1

tinycss2                  1.2.1

tornado                   6.3.3

traitlets                 5.11.2

types-python-dateutil     2.8.19.14

uri-template              1.3.0

urllib3                   2.0.6

wcwidth                   0.2.8

webcolors                 1.13

webencodings              0.5.1

websocket-client          1.6.3

widgetsnbextension        4.0.9

Command Line Output

Exceeds post size limit...

Browser Output

Paste the output from your browser Javascript console here.

If using JupyterLab

• JupyterLab version: 4.0.6

Installed Labextensions

JupyterLab v4.0.6
/Users/Orome/Documents/Projects/Coding/Python/venvs/logisticmap/share/jupyter/labextensions
        jupyter-matplotlib v0.11.3 enabled OK
        @jupyter-notebook/lab-extension v7.0.4 enabled OK
        @jupyter-widgets/jupyterlab-manager v5.0.9 enabled OK (python, jupyterlab_widgets)

[rawlins]

I think there must have been some kind of fairly general regression here. Unless I'm delusional, the following simple case should lead to rendered mathjax, and it currently doesn't (jupyterlab 4.0.6 with default mathjax 3 renderer, ipwidgets 8.1.1):

import ipywidgets
ipywidgets.HTMLMath(value=r"$x_y$")

(edit: changed delimiters, but I've tried with all delimiters)

Further edit: looks like this is the same issue as #3829

[xEverth]

Possibly also related to #2253
Have the same issue!

[ibdafna]

Just tested with the snippet above and can confirm everything is working as expected with JupyterLab 4.1.2

Please let me know if you can still reproduce.

[rawlins]

Great, on update I can confirm that I'm no longer seeing this with my snippet either, or other simple cases I've checked.

[vpicouet]

It does not seem to work on vs code even after upgrading on python 3.12...:
pip install -U jupyterlab_widgets
pip install -U ipywidgets