1605975 : anywidget für Jupyterlab?¶

Created: 2026-06-03T15:32:21Z - current status: new¶

Anonymized Summary:¶

A user reports that Jupyter widgets (anywidget, ipywidgets with plotly) are not working in Max-JupyterHub’s JupyterLab, despite the packages being installed in their kernel. Running plotly.graph_objects.FigureWidget() throws a JavaScript error related to loading 'AnyModel' from module 'anywidget'.

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Issue:¶

• Error: Failed to load widget-related dependencies (anywidget, ipywidgets) in JupyterLab.
• Root Cause: Missing frontend extensions for widgets in the JupyterHub deployment (not just Python package installation).

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Solution / Next Steps:¶

1. For Admins: Ensure the JupyterLab environment includes both:
2. Backend Python packages (pip install anywidget ipywidgets).

3. Frontend JupyterLab extensions (e.g., @jupyter-widgets/jupyterlab-manager).

4. For User: Temporarily switch to "Classic Notebook" mode via the Launch modus option (if available), as it may handle widgets differently.

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Sources: - JupyterHub on Maxwell Configuration