Panel Preview not working: KeyError #7433
Description
I'm working on upgrading our jupyterhub and Panel. In our existing setup the Jupyter Panel Preview is working. But not in the new setup.
Steps
- Log into Jupyter
- Open Notebook
- Select
baseenvironment - Create notebook with widget and make it .servable(). (With just display like
pn.panel('hello').servable()there is no problem.) - Click the Panel Preview button
- See that the preview does not show anything and that there is an error in the browser console.
Check the server logs
2024-10-23 11:41:32,007 - ServerApp - ERROR - Uncaught exception GET /mt-fumo/user/masma/panel-preview/render/test.ipynb/ws (10.86.100.104)
HTTPServerRequest(protocol='https', host='mnr-jupyterhub-dev.de-prod.dk', method='GET', uri='/mt-fumo/user/masma/panel-preview/render/test.ipynb/ws', version='HTTP/1.1', remote_ip='10.86.100.104')
Traceback (most recent call last):
File "/opt/conda/lib/python3.11/site-packages/tornado/websocket.py", line 940, in _accept_connection
await open_result
File "/opt/conda/lib/python3.11/site-packages/panel/io/jupyter_server_extension.py", line 392, in open
kernel_info = state._kernels[self.session_id]
~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
KeyError: 'XKRUSRxzKSS076zhAKRFPD2dUhH9z29fFg8TLcjZNv9r'conda list
$ conda list
# packages in environment at /opt/conda:
#
# Name Version Build Channel
_libgcc_mutex 0.1 conda_forge conda-forge
_openmp_mutex 4.5 2_gnu conda-forge
aiohappyeyeballs 2.4.3 pyhd8ed1ab_0 conda-forge
aiohttp 3.10.10 py311h2dc5d0c_0 conda-forge
aiosignal 1.3.1 pyhd8ed1ab_0 conda-forge
aiosqlite 0.20.0 pypi_0 pypi
alembic 1.13.2 pyhd8ed1ab_0 conda-forge
annotated-types 0.7.0 pyhd8ed1ab_0 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 py311h459d7ec_4 conda-forge
arrow 1.3.0 pyhd8ed1ab_0 conda-forge
artifacts-keyring 0.4.0 pypi_0 pypi
asttokens 2.4.1 pyhd8ed1ab_0 conda-forge
async-lru 2.0.4 pyhd8ed1ab_0 conda-forge
async_generator 1.10 pyhd8ed1ab_1 conda-forge
attrs 24.2.0 pyh71513ae_0 conda-forge
aw-kubernetes 0.4.6 pypi_0 pypi
babel 2.14.0 pyhd8ed1ab_0 conda-forge
backports-tarfile 1.2.0 pypi_0 pypi
beautifulsoup4 4.12.3 pyha770c72_0 conda-forge
bleach 6.1.0 pyhd8ed1ab_0 conda-forge
blinker 1.8.2 pyhd8ed1ab_0 conda-forge
bokeh 3.6.0 pyhd8ed1ab_0 conda-forge
boltons 24.0.0 pyhd8ed1ab_0 conda-forge
brotli-python 1.1.0 py311hb755f60_1 conda-forge
bzip2 1.0.8 h4bc722e_7 conda-forge
c-ares 1.33.1 heb4867d_0 conda-forge
ca-certificates 2024.8.30 hbcca054_0 conda-forge
cached-property 1.5.2 hd8ed1ab_1 conda-forge
cached_property 1.5.2 pyha770c72_1 conda-forge
cachetools 5.5.0 pypi_0 pypi
certifi 2024.8.30 pyhd8ed1ab_0 conda-forge
certipy 0.1.3 pyhd8ed1ab_1 conda-forge
cffi 1.17.0 py311ha8e6434_0 conda-forge
charset-normalizer 3.3.2 pyhd8ed1ab_0 conda-forge
click 8.1.7 pypi_0 pypi
cloudpickle 3.1.0 pypi_0 pypi
colorama 0.4.6 pyhd8ed1ab_0 conda-forge
comm 0.2.2 pyhd8ed1ab_0 conda-forge
conda 24.7.1 py311h38be061_0 conda-forge
conda-libmamba-solver 24.9.0 pyhd8ed1ab_0 conda-forge
conda-package-handling 2.3.0 pyh7900ff3_0 conda-forge
conda-package-streaming 0.10.0 pyhd8ed1ab_0 conda-forge
configurable-http-proxy 4.6.2 hbf95b10_1 conda-forge
contourpy 1.3.0 py311hd18a35c_2 conda-forge
cryptography 43.0.0 py311hc6616f6_0 conda-forge
dask 2024.10.0 pypi_0 pypi
dataclasses-json 0.6.7 pypi_0 pypi
debugpy 1.8.5 py311hf86e51f_0 conda-forge
decorator 5.1.1 pyhd8ed1ab_0 conda-forge
deepmerge 2.0 pypi_0 pypi
defusedxml 0.7.1 pyhd8ed1ab_0 conda-forge
distributed 2024.10.0 pypi_0 pypi
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
faiss-cpu 1.8.0 pypi_0 pypi
fmt 10.2.1 h00ab1b0_0 conda-forge
fqdn 1.5.1 pyhd8ed1ab_0 conda-forge
freetype 2.12.1 h267a509_2 conda-forge
frozendict 2.4.4 py311h331c9d8_0 conda-forge
frozenlist 1.4.1 py311h9ecbd09_1 conda-forge
fsspec 2024.10.0 pypi_0 pypi
future 0.18.3 pyhd8ed1ab_0 conda-forge
git 2.47.0 pl5321h59d505e_0 conda-forge
gitdb 4.0.11 pyhd8ed1ab_0 conda-forge
gitpython 3.1.43 pyhd8ed1ab_0 conda-forge
google-auth 2.35.0 pypi_0 pypi
greenlet 3.0.3 py311hb755f60_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
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
ipywidgets-bokeh 1.6.0 pypi_0 pypi
isoduration 20.11.0 pyhd8ed1ab_0 conda-forge
jaraco-classes 3.4.0 pypi_0 pypi
jaraco-context 6.0.1 pypi_0 pypi
jaraco-functools 4.1.0 pypi_0 pypi
jedi 0.19.1 pyhd8ed1ab_0 conda-forge
jeepney 0.8.0 pypi_0 pypi
jinja2 3.1.4 pyhd8ed1ab_0 conda-forge
jiter 0.6.1 pypi_0 pypi
json5 0.9.25 pyhd8ed1ab_0 conda-forge
jsonpatch 1.33 pyhd8ed1ab_0 conda-forge
jsonpath-ng 1.7.0 pypi_0 pypi
jsonpointer 3.0.0 py311h38be061_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-ai 2.26.0 pypi_0 pypi
jupyter-ai-magics 2.26.0 pypi_0 pypi
jupyter-bokeh 4.0.5 pypi_0 pypi
jupyter-lsp 2.2.5 pyhd8ed1ab_0 conda-forge
jupyter-server-mathjax 0.2.6 pyh5bfe37b_1 conda-forge
jupyter-server-proxy 4.4.0 pyhd8ed1ab_0 conda-forge
jupyter-vscode-proxy 0.6 pyhd8ed1ab_0 conda-forge
jupyter_client 8.6.2 pyhd8ed1ab_0 conda-forge
jupyter_conda 5.2.1 hd8ed1ab_0 conda-forge
jupyter_core 5.7.2 py311h38be061_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
jupyterhub 5.2.1 pyh31011fe_0 conda-forge
jupyterhub-base 5.2.1 pyh31011fe_0 conda-forge
jupyterlab 4.2.5 pyhd8ed1ab_0 conda-forge
jupyterlab-git 0.50.1 pyhd8ed1ab_1 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
keyring 25.4.1 pypi_0 pypi
keyutils 1.6.1 h166bdaf_0 conda-forge
krb5 1.21.3 h659f571_0 conda-forge
kubernetes 22.6.0 pypi_0 pypi
langchain 0.2.16 pypi_0 pypi
langchain-community 0.2.17 pypi_0 pypi
langchain-core 0.2.41 pypi_0 pypi
langchain-text-splitters 0.2.4 pypi_0 pypi
langsmith 0.1.136 pypi_0 pypi
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 24_linux64_openblas conda-forge
libboost 1.86.0 hb8260a3_2 conda-forge
libcblas 3.9.0 24_linux64_openblas conda-forge
libcurl 8.10.1 hbbe4b11_0 conda-forge
libdeflate 1.22 hb9d3cd8_0 conda-forge
libedit 3.1.20191231 he28a2e2_2 conda-forge
libev 4.33 hd590300_2 conda-forge
libexpat 2.6.3 h5888daf_0 conda-forge
libffi 3.4.2 h7f98852_5 conda-forge
libgcc 14.2.0 h77fa898_1 conda-forge
libgcc-ng 14.2.0 h69a702a_1 conda-forge
libgfortran 14.2.0 h69a702a_1 conda-forge
libgfortran-ng 14.2.0 h69a702a_1 conda-forge
libgfortran5 14.2.0 hd5240d6_1 conda-forge
libgomp 14.2.0 h77fa898_1 conda-forge
libiconv 1.17 hd590300_2 conda-forge
libjpeg-turbo 3.0.0 hd590300_1 conda-forge
liblapack 3.9.0 24_linux64_openblas conda-forge
libmamba 1.5.8 had39da4_0 conda-forge
libmambapy 1.5.8 py311hf2555c7_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 1.6.44 hadc24fc_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 14.2.0 hc0a3c3a_1 conda-forge
libstdcxx-ng 14.2.0 h4852527_1 conda-forge
libtiff 4.7.0 he137b08_1 conda-forge
libuuid 2.38.1 h0b41bf4_0 conda-forge
libuv 1.48.0 hd590300_0 conda-forge
libwebp-base 1.4.0 hd590300_0 conda-forge
libxcb 1.17.0 h8a09558_0 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
linkify-it-py 2.0.3 pyhd8ed1ab_0 conda-forge
locket 1.0.0 pypi_0 pypi
lz4-c 1.9.4 hcb278e6_0 conda-forge
lzo 2.10 hd590300_1001 conda-forge
mako 1.3.5 pyhd8ed1ab_0 conda-forge
mamba 1.5.8 py311h3072747_0 conda-forge
mamba_gator 5.2.1 pyhd8ed1ab_0 conda-forge
markdown 3.6 pyhd8ed1ab_0 conda-forge
markdown-it-py 3.0.0 pyhd8ed1ab_0 conda-forge
markupsafe 2.1.5 py311h459d7ec_0 conda-forge
marshmallow 3.23.0 pypi_0 pypi
matplotlib-inline 0.1.7 pyhd8ed1ab_0 conda-forge
mdit-py-plugins 0.4.2 pyhd8ed1ab_0 conda-forge
mdurl 0.1.2 pyhd8ed1ab_0 conda-forge
menuinst 2.1.2 py311h38be061_0 conda-forge
mistune 3.0.2 pyhd8ed1ab_0 conda-forge
more-itertools 10.5.0 pypi_0 pypi
msgpack 1.1.0 pypi_0 pypi
multidict 6.1.0 py311h2dc5d0c_1 conda-forge
mypy-extensions 1.0.0 pypi_0 pypi
nb_conda_kernels 2.5.1 pyh707e725_2 conda-forge
nbclassic 1.1.0 pyhd8ed1ab_0 conda-forge
nbclient 0.10.0 pyhd8ed1ab_0 conda-forge
nbconvert 7.16.4 hd8ed1ab_1 conda-forge
nbconvert-core 7.16.4 pyhd8ed1ab_1 conda-forge
nbconvert-pandoc 7.16.4 hd8ed1ab_1 conda-forge
nbdime 4.0.2 pyhd8ed1ab_0 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
nodeenv 1.9.1 pyhd8ed1ab_0 conda-forge
nodejs 22.7.0 hf235a45_0 conda-forge
notebook 7.2.1 pyhd8ed1ab_0 conda-forge
notebook-shim 0.2.4 pyhd8ed1ab_0 conda-forge
numpy 1.26.4 py311h64a7726_0 conda-forge
oauthlib 3.2.2 pyhd8ed1ab_0 conda-forge
openai 1.52.0 pypi_0 pypi
openjpeg 2.5.2 h488ebb8_0 conda-forge
openssl 3.3.2 hb9d3cd8_0 conda-forge
orjson 3.10.9 pypi_0 pypi
overrides 7.7.0 pyhd8ed1ab_0 conda-forge
packaging 24.1 pyhd8ed1ab_0 conda-forge
pamela 1.2.0 pyhff2d567_0 conda-forge
pandas 2.2.3 py311h7db5c69_1 conda-forge
pandoc 3.5 ha770c72_0 conda-forge
pandocfilters 1.5.0 pyhd8ed1ab_0 conda-forge
panel 1.5.2 pyhd8ed1ab_0 conda-forge
param 2.1.1 pyhff2d567_0 conda-forge
parso 0.8.4 pyhd8ed1ab_0 conda-forge
partd 1.4.2 pypi_0 pypi
pcre2 10.44 hba22ea6_2 conda-forge
perl 5.32.1 7_hd590300_perl5 conda-forge
perspective 2.10.1 py311h26fe663_4 conda-forge
perspective-parquet 0.1.2 pyhff2d567_1 conda-forge
perspective_parquet 0.1.2 pyh80e38bb_1 conda-forge
pexpect 4.9.0 pyhd8ed1ab_0 conda-forge
pickleshare 0.7.5 py_1003 conda-forge
pillow 11.0.0 py311h49e9ac3_0 conda-forge
pip 24.2 pyh8b19718_1 conda-forge
pkgutil-resolve-name 1.3.10 pyhd8ed1ab_1 conda-forge
platformdirs 4.2.2 pyhd8ed1ab_0 conda-forge
plotly 5.24.1 pyhd8ed1ab_0 conda-forge
pluggy 1.5.0 pyhd8ed1ab_0 conda-forge
ply 3.11 pypi_0 pypi
prometheus_client 0.20.0 pyhd8ed1ab_0 conda-forge
prompt-toolkit 3.0.47 pyha770c72_0 conda-forge
propcache 0.2.0 py311h9ecbd09_2 conda-forge
psutil 6.0.0 py311h331c9d8_0 conda-forge
pthread-stubs 0.4 hb9d3cd8_1002 conda-forge
ptyprocess 0.7.0 pyhd3deb0d_0 conda-forge
pure_eval 0.2.3 pyhd8ed1ab_0 conda-forge
pyasn1 0.6.1 pypi_0 pypi
pyasn1-modules 0.4.1 pypi_0 pypi
pybind11-abi 4 hd8ed1ab_3 conda-forge
pycosat 0.6.6 py311h459d7ec_0 conda-forge
pycparser 2.22 pyhd8ed1ab_0 conda-forge
pycurl 7.45.3 py311h3393d6f_1 conda-forge
pydantic 2.8.2 pyhd8ed1ab_0 conda-forge
pydantic-core 2.20.1 py311hb3a8bbb_0 conda-forge
pygments 2.18.0 pyhd8ed1ab_0 conda-forge
pyjwt 2.9.0 pyhd8ed1ab_1 conda-forge
pyopenssl 24.2.1 pyhd8ed1ab_2 conda-forge
pyright 1.1.384 py311h9ecbd09_0 conda-forge
pysocks 1.7.1 pyha2e5f31_6 conda-forge
python 3.11.9 hb806964_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 2024.2 pyhd8ed1ab_0 conda-forge
python_abi 3.11 5_cp311 conda-forge
pytoolconfig 1.2.5 pyhd8ed1ab_0 conda-forge
pytz 2024.1 pyhd8ed1ab_0 conda-forge
pyviz_comms 3.0.3 pyhd8ed1ab_0 conda-forge
pyyaml 6.0.2 py311h61187de_0 conda-forge
pyzmq 26.2.0 py311h7deb3e3_0 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
requests-oauthlib 2.0.0 pypi_0 pypi
requests-toolbelt 1.0.0 pypi_0 pypi
rfc3339-validator 0.1.4 pyhd8ed1ab_0 conda-forge
rfc3986-validator 0.1.1 pyh9f0ad1d_0 conda-forge
rope 1.13.0 pyhd8ed1ab_0 conda-forge
rpds-py 0.20.0 py311hb3a8bbb_0 conda-forge
rsa 4.9 pypi_0 pypi
ruamel.yaml 0.18.6 py311h459d7ec_0 conda-forge
ruamel.yaml.clib 0.2.8 py311h459d7ec_0 conda-forge
secretstorage 3.3.3 pypi_0 pypi
send2trash 1.8.3 pyh0d859eb_0 conda-forge
setuptools 72.2.0 pyhd8ed1ab_0 conda-forge
simpervisor 1.0.0 pyhd8ed1ab_0 conda-forge
six 1.16.0 pyh6c4a22f_0 conda-forge
smmap 5.0.0 pyhd8ed1ab_0 conda-forge
sniffio 1.3.1 pyhd8ed1ab_0 conda-forge
sortedcontainers 2.4.0 pypi_0 pypi
soupsieve 2.5 pyhd8ed1ab_1 conda-forge
sqlalchemy 2.0.32 py311h61187de_0 conda-forge
stack_data 0.6.2 pyhd8ed1ab_0 conda-forge
tblib 3.0.0 pypi_0 pypi
tenacity 8.5.0 pypi_0 pypi
terminado 0.18.1 pyh0d859eb_0 conda-forge
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
toolz 1.0.0 pypi_0 pypi
tornado 6.4.1 py311h331c9d8_0 conda-forge
tqdm 4.66.5 pyhd8ed1ab_0 conda-forge
traitlets 5.14.3 pyhd8ed1ab_0 conda-forge
truststore 0.8.0 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-inspect 0.9.0 pypi_0 pypi
typing_extensions 4.12.2 pyha770c72_0 conda-forge
typing_utils 0.1.0 pyhd8ed1ab_0 conda-forge
tzdata 2024a h0c530f3_0 conda-forge
uc-micro-py 1.0.3 pyhd8ed1ab_0 conda-forge
uri-template 1.3.0 pyhd8ed1ab_0 conda-forge
urllib3 2.2.2 pyhd8ed1ab_1 conda-forge
uv 0.4.25 pypi_0 pypi
voila 0.5.8 pyhd8ed1ab_1 conda-forge
watchfiles 0.24.0 pypi_0 pypi
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
websockets 13.1 py311h9ecbd09_0 conda-forge
wheel 0.44.0 pyhd8ed1ab_0 conda-forge
widgetsnbextension 4.0.13 pyhd8ed1ab_0 conda-forge
xorg-libxau 1.0.11 hb9d3cd8_1 conda-forge
xorg-libxdmcp 1.1.5 hb9d3cd8_0 conda-forge
xyzservices 2024.9.0 pyhd8ed1ab_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
yarl 1.15.5 py311h9ecbd09_0 conda-forge
zeromq 4.3.5 h75354e8_4 conda-forge
zict 3.0.0 pypi_0 pypi
zipp 3.20.0 pyhd8ed1ab_0 conda-forge
zlib 1.3.1 h4ab18f5_1 conda-forge
zstandard 0.23.0 py311h5cd10c7_0 conda-forge
zstd 1.5.6 ha6fb4c9_0 conda-forgeAdditional Context
I'm told there is also a xrsf cookie issue jupyterhub/zero-to-jupyterhub-k8s#3422. I don't know if its related.