azjps
azjps
Just confirmed that its unrelated to `ipdb`: ```bash conda create -y python=3.8 jupyterlab -p /tmp/venv-pdb/ conda activate /tmp/venv-pdb conda install -c conda-forge pdbpp jupyter lab --no-browser ```  Edit: I...
Yeah, sorry for the mixed-and-matched stack traces, but I was getting the same error on both 0.10.3 (shown in the screenshot) and master (which was pasted in the original post)....
Following may help, a new `7.x` release for this bugfix would still be really nice though: https://github.com/jupyter-widgets/ipywidgets/issues/3247#issuecomment-985234929 https://github.com/jupyter-widgets/ipywidgets/issues/3247#issuecomment-985446394 https://github.com/jupyter-widgets/ipywidgets/issues/3322#issuecomment-989811244
Hi @jasongrout @ibdafna, after spending a bit too long on `master` trying to trace code to find where the `jupyter-widgets` CSS class was added, I found out this was fixed...
In case this helps anyone wanting to do a local install: ```bash # create tmp venv w/ yarn for dev build conda create -p /tmp/venv-widgets -c conda-forge python=3.8 yarn jupyterlab=3.2.3...
In case it helps, I think this is fixed in `ipwidgets==8.0.0b0` (or any of the other `8.x` pre-releases) due to https://github.com/jupyter-widgets/ipywidgets/pull/2500, or you can try building `ipywidgets` with the fix...
I think there's a couple of ways you could try to work around it, for example (1) using the [`@default` decorator](https://traitlets.readthedocs.io/en/stable/using_traitlets.html#default-values-and-checking-type-and-value) to dynamically check in `Child` if it has `self.parent`...
Do you really need to launch a new singleton application? Most likely you can just call `greet_app.initialize(); greet_app.start()` directly which will run the same behavior except it won't have the...
@metaperl, I think you misunderstood what I wrote. To be clear, it seems to me like you should replace ```python greet_app = Greeting(**arg) greet_app.launch_instance() ``` (note anyway that `.launch_instance()` is...
Added a mention in docs, feel free to submit a PR to improve docs if you encounter anything missing.