Question about a warning I see when running notebooks through `nbconvert` on windows. Creating a basic environment: ``` mamba create --name jl python=3.10 jupyter ``` Then running a notebook through `nbconvert`, I get a warning: ``` ❯ jupyter nbconvert --to html --execute .\Untitled.ipynb [NbConvertApp] Converting notebook .\Untitled.ipynb to html C:\Users\user\python\envs\jl\lib\site-packages\zmq\_future.py:724: RuntimeWarning: Proactor event loop does not implement add_reader family of methods required for zmq. Registering an additional selector thread for add_reader support via tornado. Use `asyncio.set_event_loop_policy(WindowsSelectorEventLoopPolicy())` to avoid this warning. self._get_loop() [NbConvertApp] Writing 271060 bytes to Untitled.html ``` The warning goes away if I pin `jupyter_core<5.7` Is there something in the setup I am missing for windows that would avoid the warning using the latest `jupyter_core`? Thanks! Package versions: ``` # packages in environment at C:\Users\user\python\envs\jl: # # Name Version Build Channel anyio 4.3.0 pyhd8ed1ab_0 conda-forge argon2-cffi 23.1.0 pyhd8ed1ab_0 conda-forge argon2-cffi-bindings 21.2.0 py310h8d17308_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 23.2.0 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 brotli-python 1.1.0 py310h00ffb61_1 conda-forge bzip2 1.0.8 hcfcfb64_5 conda-forge ca-certificates 2024.2.2 h56e8100_0 conda-forge cached-property 1.5.2 hd8ed1ab_1 conda-forge cached_property 1.5.2 pyha770c72_1 conda-forge certifi 2024.2.2 pyhd8ed1ab_0 conda-forge cffi 1.16.0 py310h8d17308_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 debugpy 1.8.1 py310h00ffb61_0 conda-forge decorator 5.1.1 pyhd8ed1ab_0 conda-forge defusedxml 0.7.1 pyhd8ed1ab_0 conda-forge entrypoints 0.4 pyhd8ed1ab_0 conda-forge exceptiongroup 1.2.0 pyhd8ed1ab_2 conda-forge executing 2.0.1 pyhd8ed1ab_0 conda-forge fqdn 1.5.1 pyhd8ed1ab_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 idna 3.7 pyhd8ed1ab_0 conda-forge importlib-metadata 7.1.0 pyha770c72_0 conda-forge importlib_metadata 7.1.0 hd8ed1ab_0 conda-forge importlib_resources 6.4.0 pyhd8ed1ab_0 conda-forge ipykernel 6.29.3 pyha63f2e9_0 conda-forge ipython 8.24.0 pyh7428d3b_0 conda-forge ipywidgets 8.1.3 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 jsonpointer 2.4 py310h5588dad_3 conda-forge jsonschema 4.22.0 pyhd8ed1ab_0 conda-forge jsonschema-specifications 2023.12.1 pyhd8ed1ab_0 conda-forge jsonschema-with-format-nongpl 4.22.0 pyhd8ed1ab_0 conda-forge jupyter 1.0.0 pyhd8ed1ab_10 conda-forge jupyter-lsp 2.2.5 pyhd8ed1ab_0 conda-forge jupyter_client 8.6.2 pyhd8ed1ab_0 conda-forge jupyter_console 6.6.3 pyhd8ed1ab_0 conda-forge jupyter_core 5.7.2 py310h5588dad_0 conda-forge jupyter_events 0.10.0 pyhd8ed1ab_0 conda-forge jupyter_server 2.14.0 pyhd8ed1ab_0 conda-forge jupyter_server_terminals 0.5.3 pyhd8ed1ab_0 conda-forge jupyterlab 4.2.1 pyhd8ed1ab_0 conda-forge jupyterlab_pygments 0.3.0 pyhd8ed1ab_1 conda-forge jupyterlab_server 2.27.2 pyhd8ed1ab_0 conda-forge jupyterlab_widgets 3.0.11 pyhd8ed1ab_0 conda-forge krb5 1.21.2 heb0366b_0 conda-forge libffi 3.4.2 h8ffe710_5 conda-forge libsodium 1.0.18 h8d14728_1 conda-forge libsqlite 3.45.3 hcfcfb64_0 conda-forge libzlib 1.3.1 h2466b09_1 conda-forge markupsafe 2.1.5 py310h8d17308_0 conda-forge matplotlib-inline 0.1.7 pyhd8ed1ab_0 conda-forge mistune 3.0.2 pyhd8ed1ab_0 conda-forge nbclient 0.10.0 pyhd8ed1ab_0 conda-forge nbconvert 7.16.4 hd8ed1ab_0 conda-forge nbconvert-core 7.16.4 pyhd8ed1ab_0 conda-forge nbconvert-pandoc 7.16.4 hd8ed1ab_0 conda-forge nbformat 5.10.4 pyhd8ed1ab_0 conda-forge nest-asyncio 1.6.0 pyhd8ed1ab_0 conda-forge notebook 7.2.0 pyhd8ed1ab_0 conda-forge notebook-shim 0.2.4 pyhd8ed1ab_0 conda-forge openssl 3.3.0 h2466b09_3 conda-forge overrides 7.7.0 pyhd8ed1ab_0 conda-forge packaging 24.0 pyhd8ed1ab_0 conda-forge pandoc 3.2 h57928b3_0 conda-forge pandocfilters 1.5.0 pyhd8ed1ab_0 conda-forge parso 0.8.4 pyhd8ed1ab_0 conda-forge pickleshare 0.7.5 py_1003 conda-forge pip 24.0 pyhd8ed1ab_0 conda-forge pkgutil-resolve-name 1.3.10 pyhd8ed1ab_1 conda-forge platformdirs 4.2.2 pyhd8ed1ab_0 conda-forge prometheus_client 0.20.0 pyhd8ed1ab_0 conda-forge prompt-toolkit 3.0.42 pyha770c72_0 conda-forge prompt_toolkit 3.0.42 hd8ed1ab_0 conda-forge psutil 5.9.8 py310h8d17308_0 conda-forge pure_eval 0.2.2 pyhd8ed1ab_0 conda-forge pycparser 2.22 pyhd8ed1ab_0 conda-forge pygments 2.18.0 pyhd8ed1ab_0 conda-forge pysocks 1.7.1 pyh0701188_6 conda-forge python 3.10.14 h4de0772_0_cpython conda-forge python-dateutil 2.9.0 pyhd8ed1ab_0 conda-forge python-fastjsonschema 2.19.1 pyhd8ed1ab_0 conda-forge python-json-logger 2.0.7 pyhd8ed1ab_0 conda-forge python_abi 3.10 4_cp310 conda-forge pytz 2024.1 pyhd8ed1ab_0 conda-forge pywin32 306 py310h00ffb61_2 conda-forge pywinpty 2.0.13 py310h00ffb61_0 conda-forge pyyaml 6.0.1 py310h8d17308_1 conda-forge pyzmq 26.0.3 py310h656833d_0 conda-forge qtconsole-base 5.5.2 pyha770c72_0 conda-forge qtpy 2.4.1 pyhd8ed1ab_0 conda-forge referencing 0.35.1 pyhd8ed1ab_0 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 0.18.1 py310hc226416_0 conda-forge send2trash 1.8.3 pyh5737063_0 conda-forge setuptools 70.0.0 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 pyh5737063_0 conda-forge tinycss2 1.3.0 pyhd8ed1ab_0 conda-forge tk 8.6.13 h5226925_1 conda-forge tomli 2.0.1 pyhd8ed1ab_0 conda-forge tornado 6.4 py310h8d17308_0 conda-forge traitlets 5.14.3 pyhd8ed1ab_0 conda-forge types-python-dateutil 2.9.0.20240316 pyhd8ed1ab_0 conda-forge typing-extensions 4.11.0 hd8ed1ab_0 conda-forge typing_extensions 4.11.0 pyha770c72_0 conda-forge typing_utils 0.1.0 pyhd8ed1ab_0 conda-forge tzdata 2024a h0c530f3_0 conda-forge ucrt 10.0.22621.0 h57928b3_0 conda-forge uri-template 1.3.0 pyhd8ed1ab_0 conda-forge urllib3 2.2.1 pyhd8ed1ab_0 conda-forge vc 14.3 ha32ba9b_20 conda-forge vc14_runtime 14.38.33135 h835141b_20 conda-forge vs2015_runtime 14.38.33135 h22015db_20 conda-forge wcwidth 0.2.13 pyhd8ed1ab_0 conda-forge webcolors 1.13 pyhd8ed1ab_0 conda-forge webencodings 0.5.1 pyhd8ed1ab_2 conda-forge websocket-client 1.8.0 pyhd8ed1ab_0 conda-forge wheel 0.43.0 pyhd8ed1ab_1 conda-forge widgetsnbextension 4.0.11 pyhd8ed1ab_0 conda-forge win_inet_pton 1.1.0 pyhd8ed1ab_6 conda-forge winpty 0.4.3 4 conda-forge xz 5.2.6 h8d14728_0 conda-forge yaml 0.2.5 h8ffe710_2 conda-forge zeromq 4.3.5 he1f189c_4 conda-forge zipp 3.17.0 pyhd8ed1ab_0 conda-forge ```