Starting buffering. Restoring connection. Not showing ipywidgets. Refreshing attempts eventually renders ipywidgets.

[itsergiu]

Jupyter Notebook runs about 20 seconds and renders ipywidgets every time. Running Jupyter Notebook with voila most of the time does not render ipywidgets. Starting buffering ... Restoring connection ... Only after a series of refreshing attempts ipywidgets are rendered. I start voila with command: voila --Voila.ip="0.0.0.0" --ExecutePreprocessor.timeout=600 --no-browser --port=8890 --MappingKernelManager.cull_idle_timeout=180 --MappingKernelManager.cull_interval=60

# packages in environment
# Name                    Version                   Build  Channel
anyio                     3.1.0            py38haa244fe_0    conda-forge
appmode                   0.8.0            py38haa244fe_2    conda-forge
argon2-cffi               20.1.0           py38h294d835_2    conda-forge
async_generator           1.10                       py_0    conda-forge
attrs                     21.2.0             pyhd8ed1ab_0    conda-forge
backcall                  0.2.0              pyh9f0ad1d_0    conda-forge
backports                 1.0                        py_2    conda-forge
backports.functools_lru_cache 1.6.4              pyhd8ed1ab_0    conda-forge
bleach                    3.3.0              pyh44b312d_0    conda-forge
ca-certificates           2021.5.30            h5b45459_0    conda-forge
certifi                   2021.5.30        py38haa244fe_0    conda-forge
cffi                      1.14.5           py38hd8c33c5_0    conda-forge
colorama                  0.4.4              pyh9f0ad1d_0    conda-forge
decorator                 5.0.9              pyhd8ed1ab_0    conda-forge
defusedxml                0.7.1              pyhd8ed1ab_0    conda-forge
entrypoints               0.3             pyhd8ed1ab_1003    conda-forge
idna                      3.1                pyhd3deb0d_0    conda-forge
importlib-metadata        4.6.0            py38haa244fe_0    conda-forge
intel-openmp              2021.2.0           h57928b3_616    conda-forge
ipykernel                 5.5.5            py38h43734a8_0    conda-forge
ipython                   7.25.0           py38h43734a8_0    conda-forge
ipython_genutils          0.2.0                      py_1    conda-forge
ipywidgets                7.6.3              pyhd3deb0d_0    conda-forge
jedi                      0.18.0           py38haa244fe_2    conda-forge
jinja2                    3.0.1              pyhd8ed1ab_0    conda-forge
joblib                    1.0.1                    pypi_0    pypi
jsonschema                3.2.0              pyhd8ed1ab_3    conda-forge
jupyter_client            6.1.12             pyhd8ed1ab_0    conda-forge
jupyter_contrib_core      0.3.3                      py_2    conda-forge
jupyter_core              4.7.1            py38haa244fe_0    conda-forge
jupyter_nbextensions_configurator 0.4.1            py38haa244fe_2    conda-forge
jupyter_server            1.8.0              pyhd8ed1ab_0    conda-forge
jupyterlab_pygments       0.1.2              pyh9f0ad1d_0    conda-forge
jupyterlab_widgets        1.0.0              pyhd8ed1ab_1    conda-forge
libblas                   3.9.0                     9_mkl    conda-forge
libcblas                  3.9.0                     9_mkl    conda-forge
liblapack                 3.9.0                     9_mkl    conda-forge
libsodium                 1.0.18               h8d14728_1    conda-forge
markupsafe                2.0.1            py38h294d835_0    conda-forge
matplotlib-inline         0.1.2              pyhd8ed1ab_2    conda-forge
mistune                   0.8.4           py38h294d835_1004    conda-forge
mkl                       2021.2.0           hb70f87d_389    conda-forge
nbclient                  0.5.3              pyhd8ed1ab_0    conda-forge
nbconvert                 6.1.0            py38haa244fe_0    conda-forge
nbformat                  5.1.3              pyhd8ed1ab_0    conda-forge
nest-asyncio              1.5.1              pyhd8ed1ab_0    conda-forge
notebook                  6.4.0              pyha770c72_0    conda-forge
numpy                     1.21.0           py38h09042cb_0    conda-forge
openssl                   1.1.1k               h8ffe710_0    conda-forge
packaging                 20.9               pyh44b312d_0    conda-forge
pandas                    1.2.5            py38h60cbd38_0    conda-forge
pandoc                    2.14.0.3             h8ffe710_0    conda-forge
pandocfilters             1.4.2                      py_1    conda-forge
parso                     0.8.2              pyhd8ed1ab_0    conda-forge
pickleshare               0.7.5                   py_1003    conda-forge
pip                       21.1.3             pyhd8ed1ab_0    conda-forge
plotly                    5.1.0                      py_0    plotly
prometheus_client         0.11.0             pyhd8ed1ab_0    conda-forge
prompt-toolkit            3.0.19             pyha770c72_0    conda-forge
pycparser                 2.20               pyh9f0ad1d_2    conda-forge
pygments                  2.9.0              pyhd8ed1ab_0    conda-forge
pyparsing                 2.4.7              pyh9f0ad1d_0    conda-forge
pyrsistent                0.17.3           py38h294d835_2    conda-forge
python                    3.8.3           cpython_h5fd99cc_0    conda-forge
python-dateutil           2.8.1                      py_0    conda-forge
python_abi                3.8                      2_cp38    conda-forge
pytz                      2021.1             pyhd8ed1ab_0    conda-forge
pywin32                   300              py38h294d835_0    conda-forge
pywinpty                  1.1.3            py38hd3f51b4_0    conda-forge
pyyaml                    5.4.1            py38h294d835_0    conda-forge
pyzmq                     22.1.0           py38h09162b1_0    conda-forge
scikit-learn              0.23.1                   pypi_0    pypi
scipy                     1.7.0                    pypi_0    pypi
send2trash                1.7.1              pyhd8ed1ab_0    conda-forge
setuptools                49.6.0           py38haa244fe_3    conda-forge
six                       1.16.0             pyh6c4a22f_0    conda-forge
sniffio                   1.2.0            py38haa244fe_1    conda-forge
sqlite                    3.36.0               h8ffe710_0    conda-forge
tbb                       2021.2.0             h2d74725_1    conda-forge
tenacity                  7.0.0              pyhd8ed1ab_0    conda-forge
terminado                 0.10.1           py38haa244fe_0    conda-forge
testpath                  0.5.0              pyhd8ed1ab_0    conda-forge
threadpoolctl             2.1.0                    pypi_0    pypi
tornado                   6.1              py38h294d835_1    conda-forge
traitlets                 5.0.5                      py_0    conda-forge
ucrt                      10.0.20348.0         h57928b3_0    conda-forge
vc                        14.2                 hb210afc_5    conda-forge
voila                     0.2.10             pyhd8ed1ab_0    conda-forge
vs2015_runtime            14.29.30037          h902a5da_5    conda-forge
wcwidth                   0.2.5              pyh9f0ad1d_2    conda-forge
webencodings              0.5.1                      py_1    conda-forge
websocket-client          0.57.0           py38haa244fe_4    conda-forge
wheel                     0.36.2             pyhd3deb0d_0    conda-forge
widgetsnbextension        3.5.1            py38haa244fe_4    conda-forge
wincertstore              0.2             py38haa244fe_1006    conda-forge
winpty                    0.4.3                         4    conda-forge
xgboost                   1.4.2                    pypi_0    pypi
yaml                      0.2.5                he774522_0    conda-forge
zeromq                    4.3.4                h0e60522_0    conda-forge
zipp                      3.4.1              pyhd8ed1ab_0    conda-forge

​