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bugreport: event loop integration not working for qt (pyside6) #1442
Description
The integration of the Qt event loop with notebooks seems to be broken. Anything I can do to fix it?
Reproduce:
qt_eventloop_integration.ipynb
I used uv to set up the environment using the following toml:
[project]
name = "testerdetest"
version = "0.1.0"
description = "Add your description here"
readme = "README.md"
requires-python = ">=3.12"
dependencies = [
"jupyterlab>=4.4.9",
"pyside6-essentials",
]
packages:
Package Version
------------------------- --------------
anyio 4.11.0
argon2-cffi 25.1.0
argon2-cffi-bindings 25.1.0
arrow 1.3.0
asttokens 3.0.0
async-lru 2.0.5
attrs 25.4.0
babel 2.17.0
beautifulsoup4 4.14.2
bleach 6.2.0
certifi 2025.10.5
cffi 2.0.0
charset-normalizer 3.4.3
colorama 0.4.6
comm 0.2.3
debugpy 1.8.17
decorator 5.2.1
defusedxml 0.7.1
executing 2.2.1
fastjsonschema 2.21.2
fqdn 1.5.1
h11 0.16.0
httpcore 1.0.9
httpx 0.28.1
idna 3.11
ipykernel 7.0.0
ipython 9.6.0
ipython-pygments-lexers 1.1.1
isoduration 20.11.0
jedi 0.19.2
jinja2 3.1.6
json5 0.12.1
jsonpointer 3.0.0
jsonschema 4.25.1
jsonschema-specifications 2025.9.1
jupyter-client 8.6.3
jupyter-core 5.8.1
jupyter-events 0.12.0
jupyter-lsp 2.3.0
jupyter-server 2.17.0
jupyter-server-terminals 0.5.3
jupyterlab 4.4.9
jupyterlab-pygments 0.3.0
jupyterlab-server 2.27.3
lark 1.3.0
markupsafe 3.0.3
matplotlib-inline 0.1.7
mistune 3.1.4
nbclient 0.10.2
nbconvert 7.16.6
nbformat 5.10.4
nest-asyncio 1.6.0
notebook-shim 0.2.4
packaging 25.0
pandocfilters 1.5.1
parso 0.8.5
platformdirs 4.5.0
prometheus-client 0.23.1
prompt-toolkit 3.0.52
psutil 7.1.0
pure-eval 0.2.3
pycparser 2.23
pygments 2.19.2
pyside6-essentials 6.6.1
python-dateutil 2.9.0.post0
python-json-logger 4.0.0
pywin32 311
pywinpty 3.0.2
pyyaml 6.0.3
pyzmq 27.1.0
referencing 0.36.2
requests 2.32.5
rfc3339-validator 0.1.4
rfc3986-validator 0.1.1
rfc3987-syntax 1.1.0
rpds-py 0.27.1
send2trash 1.8.3
setuptools 80.9.0
shiboken6 6.6.1
six 1.17.0
sniffio 1.3.1
soupsieve 2.8
stack-data 0.6.3
terminado 0.18.1
tinycss2 1.4.0
tornado 6.5.2
traitlets 5.14.3
types-python-dateutil 2.9.0.20251008
typing-extensions 4.15.0
uri-template 1.3.0
urllib3 2.5.0
wcwidth 0.2.14
webcolors 24.11.1
webencodings 0.5.1
websocket-client 1.9.0
IPython:
ipython
Python 3.12.10 (main, Apr 9 2025, 04:06:22) [MSC v.1943 64 bit (AMD64)]
Type 'copyright', 'credits' or 'license' for more information
IPython 9.6.0 -- An enhanced Interactive Python. Type '?' for help.
Tip: You can use files = !ls *.png
Activity
ccordoba12 commentedon Oct 14, 2025
Hey @RubendeBruin, thanks for reporting. Please downgrade
ipykernelto version 6.30.1, that should solve the issue for now.minrk commentedon Oct 22, 2025
fixed by #1458