UI theme reverts to JupyterLab Light after restarting session (even with theme sync not set)

[detly]

Description

When I change the UI theme to an installed theme eg. Darcula, upon restarting the session or closing and reopening the application, the theme shows briefly before reverting to JupyterLab Light.

This happens with every theme I tried it with, not just Darcula. I have also made sure that Adaptive Theme is not set.

I've attached a screenshot of the theme settings and video showing it happening.

Reproduce

1. In the terminal, run:

   pip install theme-darcula
   

   This should end with something like:

   Successfully installed theme-darcula-4.0.0
   

2. From the environment menu in the title bar, click the "Restart session" button (circular arrow).

3. Open Settings > Settings Editor

4. Go to Theme

5. In the Selected Theme select Darcula. The UI theme should change to this.

6. From the environment menu in the title bar, click the "Restart session" button (circular arrow).

7. The UI reloads and is briefly themed with the new theme, but then reverts to JupyterLab Light.

Expected behavior

The UI should remain themed with the selected theme.

Context

• Operating System and version: Ubuntu 24.04.2
• JupyterLab-Desktop version: 4.2.5-1
• Installer: Snap

Troubleshoot Output

~ ⚬ jupyter troubleshoot
$PATH:
        /home/jason/.pyenv/libexec
        /home/jason/.pyenv/plugins/python-build/bin
        /home/jason/.pyenv/plugins/pyenv-virtualenvwrapper/bin
        /home/jason/.pyenv/plugins/pyenv-virtualenv/bin
        /home/jason/.pyenv/plugins/pyenv-update/bin
        /home/jason/.pyenv/plugins/pyenv-doctor/bin
        /home/jason/.pyenv/libexec
        /home/jason/.pyenv/plugins/python-build/bin
        /home/jason/.pyenv/plugins/pyenv-virtualenvwrapper/bin
        /home/jason/.pyenv/plugins/pyenv-virtualenv/bin
        /home/jason/.pyenv/plugins/pyenv-update/bin
        /home/jason/.pyenv/plugins/pyenv-doctor/bin
        /home/jason/.volta/bin
        /home/jason/.pyenv/shims
        /home/jason/.config/jupyterlab-desktop/jlab_server/bin
        /usr/local/sbin
        /usr/local/bin
        /usr/sbin
        /usr/bin
        /sbin
        /bin
        /usr/games
        /usr/local/games
        /snap/bin
        /home/jason/.local/bin
        /home/jason/Code/bin
        /home/jason/.cargo-bins/bin
        /home/jason/.config/git/bin
        /home/jason/.local/go/bin
        /home/jason/.pyenv/bin
sys.path:

/home/jason/.config/jupyterlab-desktop/jlab_server/bin

/home/jason/.config/jupyterlab-desktop/jlab_server/lib/python312.zip

/home/jason/.config/jupyterlab-desktop/jlab_server/lib/python3.12

/home/jason/.config/jupyterlab-desktop/jlab_server/lib/python3.12/lib-dynload

/home/jason/.config/jupyterlab-desktop/jlab_server/lib/python3.12/site-packages
sys.executable:

/home/jason/.config/jupyterlab-desktop/jlab_server/bin/python
sys.version:

3.12.5 | packaged by conda-forge | (main, Aug  8 2024, 18:36:51) [GCC 12.4.0]
platform.platform():

Linux-6.8.0-54-generic-x86_64-with-glibc2.39
which -a jupyter:

/home/jason/.config/jupyterlab-desktop/jlab_server/bin/jupyter
pip list:

Package                   Version

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

anyio                     4.4.0

archspec                  0.2.3

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                     2.14.0

beautifulsoup4            4.12.3

bleach                    6.1.0

boltons                   24.0.0

Brotli                    1.1.0

cached-property           1.5.2

certifi                   2024.7.4

cffi                      1.17.0

charset-normalizer        3.3.2

colorama                  0.4.6

comm                      0.2.2

conda                     24.7.1

conda-libmamba-solver     24.7.0

conda-package-handling    2.3.0

conda_package_streaming   0.10.0

contourpy                 1.2.1

cycler                    0.12.1

debugpy                   1.8.5

decorator                 5.1.1

defusedxml                0.7.1

distro                    1.9.0

entrypoints               0.4

exceptiongroup            1.2.2

executing                 2.0.1

fastjsonschema            2.20.0

fonttools                 4.53.1

fqdn                      1.5.1

frozendict                2.4.4

h11                       0.14.0

h2                        4.1.0

hpack                     4.0.0

httpcore                  1.0.5

httpx                     0.27.0

hyperframe                6.0.1

idna                      3.8

importlib_metadata        8.4.0

importlib_resources       6.4.4

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

jsonpatch                 1.33

jsonpointer               3.0.0

jsonschema                4.23.0

jsonschema-specifications 2023.12.1

jupyter_client            8.6.2

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

jupyterlab                4.2.5

jupyterlab_pygments       0.3.0

jupyterlab_server         2.27.3

jupyterlab_widgets        3.0.13

kiwisolver                1.4.5

libmambapy                1.5.8

MarkupSafe                2.1.5

matplotlib                3.9.2

matplotlib-inline         0.1.7

menuinst                  2.1.2

mistune                   3.0.2

munkres                   1.1.4

nbclient                  0.10.0

nbconvert                 7.16.4

nbformat                  5.10.4

nest_asyncio              1.6.0

notebook_shim             0.2.4

numpy                     2.1.0

overrides                 7.7.0

packaging                 24.1

pandas                    2.2.2

pandocfilters             1.5.0

parso                     0.8.4

pexpect                   4.9.0

pickleshare               0.7.5

pillow                    10.4.0

pip                       24.2

pkgutil_resolve_name      1.3.10

platformdirs              4.2.2

pluggy                    1.5.0

prometheus_client         0.20.0

prompt_toolkit            3.0.47

psutil                    6.0.0

ptyprocess                0.7.0

pure_eval                 0.2.3

pycosat                   0.6.6

pycparser                 2.22

Pygments                  2.18.0

pyparsing                 3.1.4

PySocks                   1.7.1

python-dateutil           2.9.0

python-json-logger        2.0.7

pytz                      2024.1

PyYAML                    6.0.2

pyzmq                     26.2.0

referencing               0.35.1

requests                  2.32.3

rfc3339-validator         0.1.4

rfc3986-validator         0.1.1

rpds-py                   0.20.0

ruamel.yaml               0.18.6

ruamel.yaml.clib          0.2.8

scipy                     1.14.1

Send2Trash                1.8.3

setuptools                72.2.0

six                       1.16.0

sniffio                   1.3.1

soupsieve                 2.5

stack-data                0.6.2

terminado                 0.18.1

theme-darcula             4.0.0

tinycss2                  1.3.0

tomli                     2.0.1

tornado                   6.4.1

tqdm                      4.66.5

traitlets                 5.14.3

truststore                0.9.2

types-python-dateutil     2.9.0.20240821

typing_extensions         4.12.2

typing-utils              0.1.0

tzdata                    2024.1

uri-template              1.3.0

urllib3                   2.2.2

wcwidth                   0.2.13

webcolors                 24.8.0

webencodings              0.5.1

websocket-client          1.8.0

wheel                     0.44.0

widgetsnbextension        4.0.13

zipp                      3.20.1

zstandard                 0.23.0
conda list:

# packages in environment at /home/jason/.config/jupyterlab-desktop/jlab_server:

#

# Name                    Version                   Build  Channel

_libgcc_mutex             0.1                 conda_forge    conda-forge

_openmp_mutex             4.5                       2_gnu    conda-forge

anyio                     4.4.0              pyhd8ed1ab_0    conda-forge

archspec                  0.2.3              pyhd8ed1ab_0    conda-forge

argon2-cffi               23.1.0             pyhd8ed1ab_0    conda-forge

argon2-cffi-bindings      21.2.0          py312h98912ed_4    conda-forge

arrow                     1.3.0              pyhd8ed1ab_0    conda-forge

asttokens                 2.4.1              pyhd8ed1ab_0    conda-forge

async-lru                 2.0.4              pyhd8ed1ab_0    conda-forge

attrs                     24.2.0             pyh71513ae_0    conda-forge

babel                     2.14.0             pyhd8ed1ab_0    conda-forge

beautifulsoup4            4.12.3             pyha770c72_0    conda-forge

bleach                    6.1.0              pyhd8ed1ab_0    conda-forge

boltons                   24.0.0             pyhd8ed1ab_0    conda-forge

brotli                    1.1.0                hd590300_1    conda-forge

brotli-bin                1.1.0                hd590300_1    conda-forge

brotli-python             1.1.0           py312h30efb56_1    conda-forge

bzip2                     1.0.8                h4bc722e_7    conda-forge

c-ares                    1.33.1               heb4867d_0    conda-forge

ca-certificates           2024.7.4             hbcca054_0    conda-forge

cached-property           1.5.2                hd8ed1ab_1    conda-forge

cached_property           1.5.2              pyha770c72_1    conda-forge

certifi                   2024.7.4           pyhd8ed1ab_0    conda-forge

cffi                      1.17.0          py312h1671c18_0    conda-forge

charset-normalizer        3.3.2              pyhd8ed1ab_0    conda-forge

colorama                  0.4.6              pyhd8ed1ab_0    conda-forge

comm                      0.2.2              pyhd8ed1ab_0    conda-forge

conda                     24.7.1          py312h7900ff3_0    conda-forge

conda-libmamba-solver     24.7.0             pyhd8ed1ab_0    conda-forge

conda-package-handling    2.3.0              pyh7900ff3_0    conda-forge

conda-package-streaming   0.10.0             pyhd8ed1ab_0    conda-forge

contourpy                 1.2.1           py312h8572e83_0    conda-forge

cycler                    0.12.1             pyhd8ed1ab_0    conda-forge

debugpy                   1.8.5           py312hca68cad_0    conda-forge

decorator                 5.1.1              pyhd8ed1ab_0    conda-forge

defusedxml                0.7.1              pyhd8ed1ab_0    conda-forge

distro                    1.9.0              pyhd8ed1ab_0    conda-forge

entrypoints               0.4                pyhd8ed1ab_0    conda-forge

exceptiongroup            1.2.2              pyhd8ed1ab_0    conda-forge

executing                 2.0.1              pyhd8ed1ab_0    conda-forge

fmt                       10.2.1               h00ab1b0_0    conda-forge

fonttools                 4.53.1          py312h41a817b_0    conda-forge

fqdn                      1.5.1              pyhd8ed1ab_0    conda-forge

freetype                  2.12.1               h267a509_2    conda-forge

frozendict                2.4.4           py312h9a8786e_0    conda-forge

h11                       0.14.0             pyhd8ed1ab_0    conda-forge

h2                        4.1.0              pyhd8ed1ab_0    conda-forge

hpack                     4.0.0              pyh9f0ad1d_0    conda-forge

httpcore                  1.0.5              pyhd8ed1ab_0    conda-forge

httpx                     0.27.0             pyhd8ed1ab_0    conda-forge

hyperframe                6.0.1              pyhd8ed1ab_0    conda-forge

icu                       75.1                 he02047a_0    conda-forge

idna                      3.8                pyhd8ed1ab_0    conda-forge

importlib-metadata        8.4.0              pyha770c72_0    conda-forge

importlib_metadata        8.4.0                hd8ed1ab_0    conda-forge

importlib_resources       6.4.4              pyhd8ed1ab_0    conda-forge

ipykernel                 6.29.5             pyh3099207_0    conda-forge

ipympl                    0.9.4              pyhd8ed1ab_0    conda-forge

ipython                   8.26.0             pyh707e725_0    conda-forge

ipython_genutils          0.2.0              pyhd8ed1ab_1    conda-forge

ipywidgets                8.1.5              pyhd8ed1ab_0    conda-forge

isoduration               20.11.0            pyhd8ed1ab_0    conda-forge

jedi                      0.19.1             pyhd8ed1ab_0    conda-forge

jinja2                    3.1.4              pyhd8ed1ab_0    conda-forge

json5                     0.9.25             pyhd8ed1ab_0    conda-forge

jsonpatch                 1.33               pyhd8ed1ab_0    conda-forge

jsonpointer               3.0.0           py312h7900ff3_0    conda-forge

jsonschema                4.23.0             pyhd8ed1ab_0    conda-forge

jsonschema-specifications 2023.12.1          pyhd8ed1ab_0    conda-forge

jsonschema-with-format-nongpl 4.23.0               hd8ed1ab_0    conda-forge

jupyter-lsp               2.2.5              pyhd8ed1ab_0    conda-forge

jupyter_client            8.6.2              pyhd8ed1ab_0    conda-forge

jupyter_core              5.7.2           py312h7900ff3_0    conda-forge

jupyter_events            0.10.0             pyhd8ed1ab_0    conda-forge

jupyter_server            2.14.2             pyhd8ed1ab_0    conda-forge

jupyter_server_terminals  0.5.3              pyhd8ed1ab_0    conda-forge

jupyterlab                4.2.5              pyhd8ed1ab_0    conda-forge

jupyterlab_pygments       0.3.0              pyhd8ed1ab_1    conda-forge

jupyterlab_server         2.27.3             pyhd8ed1ab_0    conda-forge

jupyterlab_widgets        3.0.13             pyhd8ed1ab_0    conda-forge

keyutils                  1.6.1                h166bdaf_0    conda-forge

kiwisolver                1.4.5           py312h8572e83_1    conda-forge

krb5                      1.21.3               h659f571_0    conda-forge

lcms2                     2.16                 hb7c19ff_0    conda-forge

ld_impl_linux-64          2.40                 hf3520f5_7    conda-forge

lerc                      4.0.0                h27087fc_0    conda-forge

libarchive                3.7.4                hfca40fe_0    conda-forge

libblas                   3.9.0           23_linux64_openblas    conda-forge

libbrotlicommon           1.1.0                hd590300_1    conda-forge

libbrotlidec              1.1.0                hd590300_1    conda-forge

libbrotlienc              1.1.0                hd590300_1    conda-forge

libcblas                  3.9.0           23_linux64_openblas    conda-forge

libcurl                   8.9.1                hdb1bdb2_0    conda-forge

libdeflate                1.21                 h4bc722e_0    conda-forge

libedit                   3.1.20191231         he28a2e2_2    conda-forge

libev                     4.33                 hd590300_2    conda-forge

libexpat                  2.6.2                h59595ed_0    conda-forge

libffi                    3.4.2                h7f98852_5    conda-forge

libgcc-ng                 14.1.0               h77fa898_0    conda-forge

libgfortran-ng            14.1.0               h69a702a_0    conda-forge

libgfortran5              14.1.0               hc5f4f2c_0    conda-forge

libgomp                   14.1.0               h77fa898_0    conda-forge

libiconv                  1.17                 hd590300_2    conda-forge

libjpeg-turbo             3.0.0                hd590300_1    conda-forge

liblapack                 3.9.0           23_linux64_openblas    conda-forge

libmamba                  1.5.8                had39da4_0    conda-forge

libmambapy                1.5.8           py312hd9e9ff6_0    conda-forge

libnghttp2                1.58.0               h47da74e_1    conda-forge

libnsl                    2.0.1                hd590300_0    conda-forge

libopenblas               0.3.27          pthreads_hac2b453_1    conda-forge

libpng                    1.6.43               h2797004_0    conda-forge

libsodium                 1.0.18               h36c2ea0_1    conda-forge

libsolv                   0.7.30               h3509ff9_0    conda-forge

libsqlite                 3.46.0               hde9e2c9_0    conda-forge

libssh2                   1.11.0               h0841786_0    conda-forge

libstdcxx-ng              14.1.0               hc0a3c3a_0    conda-forge

libtiff                   4.6.0                h46a8edc_4    conda-forge

libuuid                   2.38.1               h0b41bf4_0    conda-forge

libwebp-base              1.4.0                hd590300_0    conda-forge

libxcb                    1.16                 hb9d3cd8_1    conda-forge

libxcrypt                 4.4.36               hd590300_1    conda-forge

libxml2                   2.12.7               he7c6b58_4    conda-forge

libzlib                   1.3.1                h4ab18f5_1    conda-forge

lz4-c                     1.9.4                hcb278e6_0    conda-forge

lzo                       2.10              hd590300_1001    conda-forge

markupsafe                2.1.5           py312h98912ed_0    conda-forge

matplotlib-base           3.9.2           py312h854627b_0    conda-forge

matplotlib-inline         0.1.7              pyhd8ed1ab_0    conda-forge

menuinst                  2.1.2           py312h7900ff3_0    conda-forge

mistune                   3.0.2              pyhd8ed1ab_0    conda-forge

munkres                   1.1.4              pyh9f0ad1d_0    conda-forge

nbclient                  0.10.0             pyhd8ed1ab_0    conda-forge

nbconvert-core            7.16.4             pyhd8ed1ab_1    conda-forge

nbformat                  5.10.4             pyhd8ed1ab_0    conda-forge

ncurses                   6.5                  he02047a_1    conda-forge

nest-asyncio              1.6.0              pyhd8ed1ab_0    conda-forge

notebook-shim             0.2.4              pyhd8ed1ab_0    conda-forge

numpy                     2.1.0           py312h1103770_0    conda-forge

openjpeg                  2.5.2                h488ebb8_0    conda-forge

openssl                   3.3.1                hb9d3cd8_3    conda-forge

overrides                 7.7.0              pyhd8ed1ab_0    conda-forge

packaging                 24.1               pyhd8ed1ab_0    conda-forge

pandas                    2.2.2           py312h1d6d2e6_1    conda-forge

pandocfilters             1.5.0              pyhd8ed1ab_0    conda-forge

parso                     0.8.4              pyhd8ed1ab_0    conda-forge

pexpect                   4.9.0              pyhd8ed1ab_0    conda-forge

pickleshare               0.7.5                   py_1003    conda-forge

pillow                    10.4.0          py312h287a98d_0    conda-forge

pip                       24.2               pyhd8ed1ab_0    conda-forge

pkgutil-resolve-name      1.3.10             pyhd8ed1ab_1    conda-forge

platformdirs              4.2.2              pyhd8ed1ab_0    conda-forge

pluggy                    1.5.0              pyhd8ed1ab_0    conda-forge

prometheus_client         0.20.0             pyhd8ed1ab_0    conda-forge

prompt-toolkit            3.0.47             pyha770c72_0    conda-forge

psutil                    6.0.0           py312h9a8786e_0    conda-forge

pthread-stubs             0.4               h36c2ea0_1001    conda-forge

ptyprocess                0.7.0              pyhd3deb0d_0    conda-forge

pure_eval                 0.2.3              pyhd8ed1ab_0    conda-forge

pybind11-abi              4                    hd8ed1ab_3    conda-forge

pycosat                   0.6.6           py312h98912ed_0    conda-forge

pycparser                 2.22               pyhd8ed1ab_0    conda-forge

pygments                  2.18.0             pyhd8ed1ab_0    conda-forge

pyparsing                 3.1.4              pyhd8ed1ab_0    conda-forge

pysocks                   1.7.1              pyha2e5f31_6    conda-forge

python                    3.12.5          h2ad013b_0_cpython    conda-forge

python-dateutil           2.9.0              pyhd8ed1ab_0    conda-forge

python-fastjsonschema     2.20.0             pyhd8ed1ab_0    conda-forge

python-json-logger        2.0.7              pyhd8ed1ab_0    conda-forge

python-tzdata             2024.1             pyhd8ed1ab_0    conda-forge

python_abi                3.12                    5_cp312    conda-forge

pytz                      2024.1             pyhd8ed1ab_0    conda-forge

pyyaml                    6.0.2           py312h41a817b_0    conda-forge

pyzmq                     26.2.0          py312hbf22597_0    conda-forge

qhull                     2020.2               h434a139_5    conda-forge

readline                  8.2                  h8228510_1    conda-forge

referencing               0.35.1             pyhd8ed1ab_0    conda-forge

reproc                    14.2.4.post0         hd590300_1    conda-forge

reproc-cpp                14.2.4.post0         h59595ed_1    conda-forge

requests                  2.32.3             pyhd8ed1ab_0    conda-forge

rfc3339-validator         0.1.4              pyhd8ed1ab_0    conda-forge

rfc3986-validator         0.1.1              pyh9f0ad1d_0    conda-forge

rpds-py                   0.20.0          py312hf008fa9_0    conda-forge

ruamel.yaml               0.18.6          py312h98912ed_0    conda-forge

ruamel.yaml.clib          0.2.8           py312h98912ed_0    conda-forge

scipy                     1.14.1          py312h7d485d2_0    conda-forge

send2trash                1.8.3              pyh0d859eb_0    conda-forge

setuptools                72.2.0             pyhd8ed1ab_0    conda-forge

six                       1.16.0             pyh6c4a22f_0    conda-forge

sniffio                   1.3.1              pyhd8ed1ab_0    conda-forge

soupsieve                 2.5                pyhd8ed1ab_1    conda-forge

stack_data                0.6.2              pyhd8ed1ab_0    conda-forge

terminado                 0.18.1             pyh0d859eb_0    conda-forge

theme-darcula             4.0.0                    pypi_0    pypi

tinycss2                  1.3.0              pyhd8ed1ab_0    conda-forge

tk                        8.6.13          noxft_h4845f30_101    conda-forge

tomli                     2.0.1              pyhd8ed1ab_0    conda-forge

tornado                   6.4.1           py312h9a8786e_0    conda-forge

tqdm                      4.66.5             pyhd8ed1ab_0    conda-forge

traitlets                 5.14.3             pyhd8ed1ab_0    conda-forge

truststore                0.9.2              pyhd8ed1ab_0    conda-forge

types-python-dateutil     2.9.0.20240821     pyhd8ed1ab_0    conda-forge

typing-extensions         4.12.2               hd8ed1ab_0    conda-forge

typing_extensions         4.12.2             pyha770c72_0    conda-forge

typing_utils              0.1.0              pyhd8ed1ab_0    conda-forge

tzdata                    2024a                h8827d51_1    conda-forge

uri-template              1.3.0              pyhd8ed1ab_0    conda-forge

urllib3                   2.2.2              pyhd8ed1ab_1    conda-forge

wcwidth                   0.2.13             pyhd8ed1ab_0    conda-forge

webcolors                 24.8.0             pyhd8ed1ab_0    conda-forge

webencodings              0.5.1              pyhd8ed1ab_2    conda-forge

websocket-client          1.8.0              pyhd8ed1ab_0    conda-forge

wheel                     0.44.0             pyhd8ed1ab_0    conda-forge

widgetsnbextension        4.0.13             pyhd8ed1ab_0    conda-forge

xorg-libxau               1.0.11               hd590300_0    conda-forge

xorg-libxdmcp             1.1.3                h7f98852_0    conda-forge

xz                        5.2.6                h166bdaf_0    conda-forge

yaml                      0.2.5                h7f98852_2    conda-forge

yaml-cpp                  0.8.0                h59595ed_0    conda-forge

zeromq                    4.3.5                h75354e8_4    conda-forge

zipp                      3.20.1             pyhd8ed1ab_0    conda-forge

zstandard                 0.23.0          py312h3483029_0    conda-forge

zstd                      1.5.6                ha6fb4c9_0    conda-forge
conda env:

name: base

channels:

- conda-forge

- defaults

dependencies:

- _libgcc_mutex=0.1=conda_forge

- _openmp_mutex=4.5=2_gnu

- anyio=4.4.0=pyhd8ed1ab_0

- archspec=0.2.3=pyhd8ed1ab_0

- argon2-cffi=23.1.0=pyhd8ed1ab_0

- argon2-cffi-bindings=21.2.0=py312h98912ed_4

- arrow=1.3.0=pyhd8ed1ab_0

- asttokens=2.4.1=pyhd8ed1ab_0

- async-lru=2.0.4=pyhd8ed1ab_0

- attrs=24.2.0=pyh71513ae_0

- babel=2.14.0=pyhd8ed1ab_0

- beautifulsoup4=4.12.3=pyha770c72_0

- bleach=6.1.0=pyhd8ed1ab_0

- boltons=24.0.0=pyhd8ed1ab_0

- brotli=1.1.0=hd590300_1

- brotli-bin=1.1.0=hd590300_1

- brotli-python=1.1.0=py312h30efb56_1

- bzip2=1.0.8=h4bc722e_7

- c-ares=1.33.1=heb4867d_0

- ca-certificates=2024.7.4=hbcca054_0

- cached-property=1.5.2=hd8ed1ab_1

- cached_property=1.5.2=pyha770c72_1

- certifi=2024.7.4=pyhd8ed1ab_0

- cffi=1.17.0=py312h1671c18_0

- charset-normalizer=3.3.2=pyhd8ed1ab_0

- colorama=0.4.6=pyhd8ed1ab_0

- comm=0.2.2=pyhd8ed1ab_0

- conda=24.7.1=py312h7900ff3_0

- conda-libmamba-solver=24.7.0=pyhd8ed1ab_0

- conda-package-handling=2.3.0=pyh7900ff3_0

- conda-package-streaming=0.10.0=pyhd8ed1ab_0

- contourpy=1.2.1=py312h8572e83_0

- cycler=0.12.1=pyhd8ed1ab_0

- debugpy=1.8.5=py312hca68cad_0

- decorator=5.1.1=pyhd8ed1ab_0

- defusedxml=0.7.1=pyhd8ed1ab_0

- distro=1.9.0=pyhd8ed1ab_0

- entrypoints=0.4=pyhd8ed1ab_0

- exceptiongroup=1.2.2=pyhd8ed1ab_0

- executing=2.0.1=pyhd8ed1ab_0

- fmt=10.2.1=h00ab1b0_0

- fonttools=4.53.1=py312h41a817b_0

- fqdn=1.5.1=pyhd8ed1ab_0

- freetype=2.12.1=h267a509_2

- frozendict=2.4.4=py312h9a8786e_0

- h11=0.14.0=pyhd8ed1ab_0

- h2=4.1.0=pyhd8ed1ab_0

- hpack=4.0.0=pyh9f0ad1d_0

- httpcore=1.0.5=pyhd8ed1ab_0

- httpx=0.27.0=pyhd8ed1ab_0

- hyperframe=6.0.1=pyhd8ed1ab_0

- icu=75.1=he02047a_0

- idna=3.8=pyhd8ed1ab_0

- importlib-metadata=8.4.0=pyha770c72_0

- importlib_metadata=8.4.0=hd8ed1ab_0

- importlib_resources=6.4.4=pyhd8ed1ab_0

- ipykernel=6.29.5=pyh3099207_0

- ipympl=0.9.4=pyhd8ed1ab_0

- ipython=8.26.0=pyh707e725_0

- ipython_genutils=0.2.0=pyhd8ed1ab_1

- ipywidgets=8.1.5=pyhd8ed1ab_0

- isoduration=20.11.0=pyhd8ed1ab_0

- jedi=0.19.1=pyhd8ed1ab_0

- jinja2=3.1.4=pyhd8ed1ab_0

- json5=0.9.25=pyhd8ed1ab_0

- jsonpatch=1.33=pyhd8ed1ab_0

- jsonpointer=3.0.0=py312h7900ff3_0

- jsonschema=4.23.0=pyhd8ed1ab_0

- jsonschema-specifications=2023.12.1=pyhd8ed1ab_0

- jsonschema-with-format-nongpl=4.23.0=hd8ed1ab_0

- jupyter-lsp=2.2.5=pyhd8ed1ab_0

- jupyter_client=8.6.2=pyhd8ed1ab_0

- jupyter_core=5.7.2=py312h7900ff3_0

- jupyter_events=0.10.0=pyhd8ed1ab_0

- jupyter_server=2.14.2=pyhd8ed1ab_0

- jupyter_server_terminals=0.5.3=pyhd8ed1ab_0

- jupyterlab=4.2.5=pyhd8ed1ab_0

- jupyterlab_pygments=0.3.0=pyhd8ed1ab_1

- jupyterlab_server=2.27.3=pyhd8ed1ab_0

- jupyterlab_widgets=3.0.13=pyhd8ed1ab_0

- keyutils=1.6.1=h166bdaf_0

- kiwisolver=1.4.5=py312h8572e83_1

- krb5=1.21.3=h659f571_0

- lcms2=2.16=hb7c19ff_0

- ld_impl_linux-64=2.40=hf3520f5_7

- lerc=4.0.0=h27087fc_0

- libarchive=3.7.4=hfca40fe_0

- libblas=3.9.0=23_linux64_openblas

- libbrotlicommon=1.1.0=hd590300_1

- libbrotlidec=1.1.0=hd590300_1

- libbrotlienc=1.1.0=hd590300_1

- libcblas=3.9.0=23_linux64_openblas

- libcurl=8.9.1=hdb1bdb2_0

- libdeflate=1.21=h4bc722e_0

- libedit=3.1.20191231=he28a2e2_2

- libev=4.33=hd590300_2

- libexpat=2.6.2=h59595ed_0

- libffi=3.4.2=h7f98852_5

- libgcc-ng=14.1.0=h77fa898_0

- libgfortran-ng=14.1.0=h69a702a_0

- libgfortran5=14.1.0=hc5f4f2c_0

- libgomp=14.1.0=h77fa898_0

- libiconv=1.17=hd590300_2

- libjpeg-turbo=3.0.0=hd590300_1

- liblapack=3.9.0=23_linux64_openblas

- libmamba=1.5.8=had39da4_0

- libmambapy=1.5.8=py312hd9e9ff6_0

- libnghttp2=1.58.0=h47da74e_1

- libnsl=2.0.1=hd590300_0

- libopenblas=0.3.27=pthreads_hac2b453_1

- libpng=1.6.43=h2797004_0

- libsodium=1.0.18=h36c2ea0_1

- libsolv=0.7.30=h3509ff9_0

- libsqlite=3.46.0=hde9e2c9_0

- libssh2=1.11.0=h0841786_0

- libstdcxx-ng=14.1.0=hc0a3c3a_0

- libtiff=4.6.0=h46a8edc_4

- libuuid=2.38.1=h0b41bf4_0

- libwebp-base=1.4.0=hd590300_0

- libxcb=1.16=hb9d3cd8_1

- libxcrypt=4.4.36=hd590300_1

- libxml2=2.12.7=he7c6b58_4

- libzlib=1.3.1=h4ab18f5_1

- lz4-c=1.9.4=hcb278e6_0

- lzo=2.10=hd590300_1001

- markupsafe=2.1.5=py312h98912ed_0

- matplotlib-base=3.9.2=py312h854627b_0

- matplotlib-inline=0.1.7=pyhd8ed1ab_0

- menuinst=2.1.2=py312h7900ff3_0

- mistune=3.0.2=pyhd8ed1ab_0

- munkres=1.1.4=pyh9f0ad1d_0

- nbclient=0.10.0=pyhd8ed1ab_0

- nbconvert-core=7.16.4=pyhd8ed1ab_1

- nbformat=5.10.4=pyhd8ed1ab_0

- ncurses=6.5=he02047a_1

- nest-asyncio=1.6.0=pyhd8ed1ab_0

- notebook-shim=0.2.4=pyhd8ed1ab_0

- numpy=2.1.0=py312h1103770_0

- openjpeg=2.5.2=h488ebb8_0

- openssl=3.3.1=hb9d3cd8_3

- overrides=7.7.0=pyhd8ed1ab_0

- packaging=24.1=pyhd8ed1ab_0

- pandas=2.2.2=py312h1d6d2e6_1

- pandocfilters=1.5.0=pyhd8ed1ab_0

- parso=0.8.4=pyhd8ed1ab_0

- pexpect=4.9.0=pyhd8ed1ab_0

- pickleshare=0.7.5=py_1003

- pillow=10.4.0=py312h287a98d_0

- pip=24.2=pyhd8ed1ab_0

- pkgutil-resolve-name=1.3.10=pyhd8ed1ab_1

- platformdirs=4.2.2=pyhd8ed1ab_0

- pluggy=1.5.0=pyhd8ed1ab_0

- prometheus_client=0.20.0=pyhd8ed1ab_0

- prompt-toolkit=3.0.47=pyha770c72_0

- psutil=6.0.0=py312h9a8786e_0

- pthread-stubs=0.4=h36c2ea0_1001

- ptyprocess=0.7.0=pyhd3deb0d_0

- pure_eval=0.2.3=pyhd8ed1ab_0

- pybind11-abi=4=hd8ed1ab_3

- pycosat=0.6.6=py312h98912ed_0

- pycparser=2.22=pyhd8ed1ab_0

- pygments=2.18.0=pyhd8ed1ab_0

- pyparsing=3.1.4=pyhd8ed1ab_0

- pysocks=1.7.1=pyha2e5f31_6

- python=3.12.5=h2ad013b_0_cpython

- python-dateutil=2.9.0=pyhd8ed1ab_0

- python-fastjsonschema=2.20.0=pyhd8ed1ab_0

- python-json-logger=2.0.7=pyhd8ed1ab_0

- python-tzdata=2024.1=pyhd8ed1ab_0

- python_abi=3.12=5_cp312

- pytz=2024.1=pyhd8ed1ab_0

- pyyaml=6.0.2=py312h41a817b_0

- pyzmq=26.2.0=py312hbf22597_0

- qhull=2020.2=h434a139_5

- readline=8.2=h8228510_1

- referencing=0.35.1=pyhd8ed1ab_0

- reproc=14.2.4.post0=hd590300_1

- reproc-cpp=14.2.4.post0=h59595ed_1

- requests=2.32.3=pyhd8ed1ab_0

- rfc3339-validator=0.1.4=pyhd8ed1ab_0

- rfc3986-validator=0.1.1=pyh9f0ad1d_0

- rpds-py=0.20.0=py312hf008fa9_0

- ruamel.yaml=0.18.6=py312h98912ed_0

- ruamel.yaml.clib=0.2.8=py312h98912ed_0

- scipy=1.14.1=py312h7d485d2_0

- send2trash=1.8.3=pyh0d859eb_0

- setuptools=72.2.0=pyhd8ed1ab_0

- six=1.16.0=pyh6c4a22f_0

- sniffio=1.3.1=pyhd8ed1ab_0

- soupsieve=2.5=pyhd8ed1ab_1

- stack_data=0.6.2=pyhd8ed1ab_0

- terminado=0.18.1=pyh0d859eb_0

- tinycss2=1.3.0=pyhd8ed1ab_0

- tk=8.6.13=noxft_h4845f30_101

- tomli=2.0.1=pyhd8ed1ab_0

- tornado=6.4.1=py312h9a8786e_0

- tqdm=4.66.5=pyhd8ed1ab_0

- traitlets=5.14.3=pyhd8ed1ab_0

- truststore=0.9.2=pyhd8ed1ab_0

- types-python-dateutil=2.9.0.20240821=pyhd8ed1ab_0

- typing-extensions=4.12.2=hd8ed1ab_0

- typing_extensions=4.12.2=pyha770c72_0

- typing_utils=0.1.0=pyhd8ed1ab_0

- tzdata=2024a=h8827d51_1

- uri-template=1.3.0=pyhd8ed1ab_0

- urllib3=2.2.2=pyhd8ed1ab_1

- wcwidth=0.2.13=pyhd8ed1ab_0

- webcolors=24.8.0=pyhd8ed1ab_0

- webencodings=0.5.1=pyhd8ed1ab_2

- websocket-client=1.8.0=pyhd8ed1ab_0

- wheel=0.44.0=pyhd8ed1ab_0

- widgetsnbextension=4.0.13=pyhd8ed1ab_0

- xorg-libxau=1.0.11=hd590300_0

- xorg-libxdmcp=1.1.3=h7f98852_0

- xz=5.2.6=h166bdaf_0

- yaml=0.2.5=h7f98852_2

- yaml-cpp=0.8.0=h59595ed_0

- zeromq=4.3.5=h75354e8_4

- zipp=3.20.1=pyhd8ed1ab_0

- zstandard=0.23.0=py312h3483029_0

- zstd=1.5.6=ha6fb4c9_0

- pip:

- theme-darcula==4.0.0

prefix: /home/jason/.config/jupyterlab-desktop/jlab_server

~ ⚬

Browser Output (required for interface issues after loading)

jlab_core.d25e823c058f4ae79a91.js?v=d25e823c058f4ae79a91:1 Language pack 'C' not valid!
fetch @ jlab_core.d25e823c058f4ae79a91.js?v=d25e823c058f4ae79a91:1

Logs (required for issues with loading, server and startup)

[2025-03-06 13:17:20.836] [warn]  Terminal websocket closed: 1006
[2025-03-06 13:17:20.837] [error] Connection lost, reconnecting in 0 seconds.
[2025-03-06 13:17:20.838] [warn]  Terminal websocket closed: undefined
[2025-03-06 13:17:20.839] [error] Connection lost, reconnecting in 0 seconds.
[2025-03-06 13:17:22.414] [warn]  Terminal websocket closed: undefined
[2025-03-06 13:17:22.414] [error] Connection lost, reconnecting in 0 seconds.
[2025-03-06 13:17:22.442] [warn]  Language pack 'C' not valid!
[2025-03-06 13:17:23.415] [warn]  Terminal websocket closed: undefined
[2025-03-06 13:17:23.415] [error] Connection lost, reconnecting in 1 seconds.
[2025-03-06 13:17:25.433] [warn]  Terminal websocket closed: undefined
[2025-03-06 13:17:25.434] [error] Connection lost, reconnecting in 11 seconds.
[2025-03-06 13:17:25.438] [warn]  Showing error: [object Object]
[2025-03-06 13:17:28.420] [warn]  Showing error: [object Object]
[2025-03-06 13:17:37.422] [warn]  Terminal websocket closed: undefined
[2025-03-06 13:17:37.423] [error] Connection lost, reconnecting in 26 seconds.
[2025-03-06 13:18:04.424] [warn]  Terminal websocket closed: undefined
[2025-03-06 13:18:04.425] [error] Connection lost, reconnecting in 55 seconds.
[2025-03-06 13:19:00.440] [warn]  Terminal websocket closed: undefined
[2025-03-06 13:19:52.975] [info]  In production mode
[2025-03-06 13:19:52.977] [info]  Logging to file (/home/jason/.config/jupyterlab-desktop/logs/main.log) at 'debug' level
[2025-03-06 13:19:53.745] [debug] Server launch script:
    source "/home/jason/.config/jupyterlab-desktop/jlab_server/bin/activate"
    
    python -m jupyterlab --no-browser --expose-app-in-browser --ServerApp.port=41373 --ServerApp.password="" --ServerApp.token="jlab:srvr:d6f2437e62f83b43a8424403746c03c7e30119" --LabApp.quit_button=False --JupyterApp.config_file_name="" --ContentsManager.allow_hidden=True

[2025-03-06 13:19:53.745] [debug] Server launch parameters:

[script]: /tmp/jlab_desktop5jWpmp/launch.sh

[options]: {"cwd":"/home/jason","shell":"/bin/bash","env":"[I removed all the env vars]"}

[2025-03-06 13:19:55.100] [error] Failed to get environment info at path '/home/jason/.pyenv/shims/python'. Error: Command failed: /home/jason/.pyenv/shims/python -c import os, sys, json, platform, importlib
env_type = 'system'

env_name = 'python'

python_version = platform.python_version()

default_kernel = 'python3'
requirements = [

'jupyterlab'

]
versions = {

"python": python_version

}
for requirement in requirements:

try:

module = importlib.import_module(requirement)

versions[requirement] = module.version

except:

versions[requirement] = 'NOT-FOUND'
if (getattr(sys, "base_prefix", None) or getattr(sys, "real_prefix", None) or sys.prefix) != sys.prefix:

env_type = 'venv'
if env_type != 'venv' and os.path.exists(os.path.join(sys.prefix, "conda-meta")):

is_root = os.path.exists(os.path.join(sys.prefix, "condabin"))

env_type = 'conda-root' if is_root else 'conda-env'
if env_type != 'system':

env_name = os.path.basename(sys.prefix)
try:

import jupyter_client

mkm = jupyter_client.multikernelmanager.MultiKernelManager()

default_kernel = mkm.default_kernel_name

except:

pass
print(json.dumps({"type" : env_type, "name": env_name, "versions" : versions, "defaultKernel": default_kernel}))
pyenv: python: command not found
The `python' command exists in these Python versions:

2.7.18
Note: See 'pyenv help global' for tips on allowing both

python2 and python3 to be found.
at ChildProcess.exithandler (node:child_process:430:12)
at ChildProcess.emit (node:events:514:28)
at maybeClose (node:internal/child_process:1091:16)
at Socket.<anonymous> (node:internal/child_process:449:11)
at Socket.emit (node:events:514:28)
at Pipe.<anonymous> (node:net:323:12)

[2025-03-06 13:20:01.576] [warn]  Language pack 'C' not valid!

[2025-03-06 13:20:01.787] [verbose] Starting application in workspace: "default"

[2025-03-06 13:20:17.408] [debug] Server launch script:
    source "/home/jason/.config/jupyterlab-desktop/jlab_server/bin/activate"
    
    python -m jupyterlab --no-browser --expose-app-in-browser --ServerApp.port=45049 --ServerApp.password="" --ServerApp.token="jlab:srvr:5483a0ba1c6445b03e84eb19b50263ac779b9e" --LabApp.quit_button=False --JupyterApp.config_file_name="" --ContentsManager.allow_hidden=True

[2025-03-06 13:20:17.409] [debug] Server launch parameters:

[script]: /tmp/jlab_desktopT3ooZK/launch.sh

[options]: {"cwd":"/home/jason","shell":"/bin/bash","env":"[I removed all the env vars]"}

[2025-03-06 13:20:17.544] [warn]  Terminal websocket closed: 1006

[2025-03-06 13:20:17.545] [error] Connection lost, reconnecting in 0 seconds.

[2025-03-06 13:20:17.546] [warn]  Terminal websocket closed: undefined

[2025-03-06 13:20:17.547] [error] Connection lost, reconnecting in 0 seconds.

[2025-03-06 13:20:18.414] [warn]  Terminal websocket closed: undefined

[2025-03-06 13:20:18.414] [error] Connection lost, reconnecting in 1 seconds.

[2025-03-06 13:20:19.697] [warn]  Language pack 'C' not valid!

[2025-03-06 13:20:19.912] [verbose] Starting application in workspace: "default"

[2025-03-06 13:20:20.414] [warn]  Terminal websocket closed: undefined

[2025-03-06 13:20:20.415] [error] Connection lost, reconnecting in 5 seconds.

[2025-03-06 13:20:22.427] [warn]  Showing error: [object Object]

[2025-03-06 13:20:22.444] [warn]  Showing error: [object Object]

[2025-03-06 13:20:26.417] [warn]  Terminal websocket closed: undefined

[2025-03-06 13:20:26.418] [error] Connection lost, reconnecting in 14 seconds.

[2025-03-06 13:20:41.417] [warn]  Terminal websocket closed: undefined

[2025-03-06 13:20:41.418] [error] Connection lost, reconnecting in 25 seconds.

[2025-03-06 13:21:07.429] [warn]  Terminal websocket closed: undefined

[2025-03-06 13:21:07.429] [error] Connection lost, reconnecting in 24 seconds.

[2025-03-06 13:21:32.426] [warn]  Terminal websocket closed: undefined

Screenshot and video:

Screencast.from.2025-03-06.12-55-48.webm