Unable to render widgets through JupyterHub installation

[ryland-goldman]

Description

I am trying to install ipywidgets on a JupyterHub server. I went through the installation instructions but still am getting a text-only result, so something must not be installed correctly:

Reproduce

These are the commands I ran, is there anything missing?

1. python -m pip install ipywidgets
2. jupyter labextension install @jupyter-widgets/jupyterlab-manager

Expected behavior

In the screenshot above, I expected to see an integer slider instead of the text IntSlider(value=0).

Context

• ipywidgets version 8.1.5
• Operating System and version: Ubuntu 24.04 LTS
• Browser and version: Safari 17.5 on macOS Sonoma 14.5
• JupyterHub 5.1.0 on Python 3.12.3

Troubleshoot Output

$PATH:
	/usr/local/sbin
	/usr/local/bin
	/usr/sbin
	/usr/bin
	/sbin
	/bin
	/snap/bin
	/[venv directory]/bin
sys.path:

/[venv directory]/bin

/usr/lib/python312.zip

/usr/lib/python3.12

/usr/lib/python3.12/lib-dynload

/[venv directory]/lib/python3.12/site-packages
sys.executable:

/[venv directory]/bin/python
sys.version:

3.12.3 (main, Jul 31 2024, 17:43:48) [GCC 13.2.0]
platform.platform():

Linux-6.8.0-1008-aws-aarch64-with-glibc2.39
which -a jupyter:

/[venv directory]/bin/jupyter
pip list:

Package                   Version

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

alembic                   1.13.2

annotated-types           0.7.0

anyio                     4.4.0

appdirs                   1.4.4

argon2-cffi               23.1.0

argon2-cffi-bindings      21.2.0

arrow                     1.3.0

asttokens                 2.4.1

async-lru                 2.0.4

attrs                     24.2.0

babel                     2.16.0

beautifulsoup4            4.12.3

bleach                    6.1.0

certifi                   2024.7.4

certipy                   0.1.3

cffi                      1.17.0

chardet                   3.0.4

charset-normalizer        3.3.2

comm                      0.2.2

contourpy                 1.2.1

cryptography              43.0.0

cycler                    0.12.1

DateTime                  5.5

debugpy                   1.8.5

decorator                 5.1.1

defusedxml                0.7.1

deprecation               2.1.0

docker                    7.1.0

dockerspawner             13.0.0

escapism                  1.0.1

eventemitter              0.2.0

executing                 2.0.1

fastjsonschema            2.20.0

fonttools                 4.53.1

fqdn                      1.5.1

greenlet                  3.0.3

h11                       0.14.0

h2                        3.2.0

hpack                     3.0.0

httpcore                  1.0.5

httpx                     0.27.0

hyperframe                5.2.0

idna                      2.10

ipykernel                 6.29.5

ipympl                    0.9.4

ipython                   8.26.0

ipython-genutils          0.2.0

ipywidgets                8.1.5

isoduration               20.11.0

jedi                      0.19.1

Jinja2                    3.1.4

json5                     0.9.25

jsonpointer               3.0.0

jsonschema                4.23.0

jsonschema-specifications 2023.12.1

jupyter                   1.0.0

jupyter_client            8.6.2

jupyter-console           6.6.3

jupyter_core              5.7.2

jupyter-events            0.10.0

jupyter-lsp               2.2.5

jupyter_server            2.14.2

jupyter_server_terminals  0.5.3

jupyterhub                5.1.0

jupyterhub-systemdspawner 1.0.1

jupyterlab                4.2.4

jupyterlab_pygments       0.3.0

jupyterlab_server         2.27.3

jupyterlab_widgets        3.0.13

kiwisolver                1.4.5

Mako                      1.3.5

MarkupSafe                2.1.5

matplotlib                3.9.2

matplotlib-inline         0.1.7

mistune                   3.0.2

nbclient                  0.10.0

nbconvert                 7.16.4

nbformat                  5.10.4

nest-asyncio              1.6.0

notebook                  7.2.1

notebook_shim             0.2.4

numpy                     2.1.0

oauthlib                  3.2.2

overrides                 7.7.0

packaging                 24.1

pamela                    1.2.0

pandas                    2.2.2

pandocfilters             1.5.1

parso                     0.8.4

pexpect                   4.9.0

pillow                    10.4.0

pip                       24.2

platformdirs              4.2.2

prometheus_client         0.20.0

prompt_toolkit            3.0.47

psutil                    6.0.0

ptyprocess                0.7.0

pure_eval                 0.2.3

pycparser                 2.22

pydantic                  2.8.2

pydantic_core             2.23.0

Pygments                  2.18.0

PyMySQL                   1.1.1

pyOpenSSL                 24.2.1

pyparsing                 3.1.2

python-configuration      0.12.1

python-dateutil           2.9.0.post0

python-json-logger        2.0.7

pytz                      2024.1

PyYAML                    6.0.2

pyzmq                     26.2.0

qtconsole                 5.5.2

QtPy                      2.4.1

referencing               0.35.1

requests                  2.32.3

rfc3339-validator         0.1.4

rfc3986                   1.5.0

rfc3986-validator         0.1.1

rpds-py                   0.20.0

scipy                     1.14.1

Send2Trash                1.8.3

setuptools                73.0.1

six                       1.16.0

sniffio                   1.3.1

soupsieve                 2.6

SQLAlchemy                2.0.32

stack-data                0.6.3

terminado                 0.18.1

tinycss2                  1.3.0

tornado                   6.4.1

traitlets                 5.14.3

types-python-dateutil     2.9.0.20240821

typing_extensions         4.12.2

tzdata                    2024.1

uri-template              1.3.0

urllib3                   2.2.2

validators                0.33.0

watchdog                  4.0.2

wcwidth                   0.2.13

webcolors                 24.8.0

webencodings              0.5.1

websocket-client          1.8.0

widgetsnbextension        4.0.13

zope.interface            7.0.1

Installed Labextensions

/[venv directory]/share/jupyter/labextensions
        jupyterlab_pygments v0.3.0 enabled OK (python, jupyterlab_pygments)
        jupyter-matplotlib v0.11.4 enabled OK
        @jupyter-notebook/lab-extension v7.2.1 enabled OK
        @jupyter-widgets/jupyterlab-manager v5.0.13 enabled OK (python, jupyterlab_widgets)