Mosaic Widget

PyPi

A Jupyter widget for Mosaic. Given a declarative specification, will generate web-based visualizations while leveraging DuckDB in the Jupyter kernel. Create interactive Mosaic plots over Pandas and Polars data frames or DuckDB connections.

Learn how to install and use the widget in the Mosaic documentation.

Developer Setup

We use uv to manage our development setup.

You can start Jupyter with ANYWIDGET_HMR=1 uv run jupyter lab --notebook-dir=../../../dev/notebooks.

Run pnpm build to build the widget JavaScript code. If you want to live edit the widget code, run pnpm dev in a separate terminal.

Run uv run ruff check --fix and uv run ruff format to lint the code.

Publishing

Run the build with uv build. Then publish with uvx twine upload --skip-existing ../../dist/*. We publish using tokens so when asked, set the username to __token__ and then use your token as the password. Alternatively, create a .pypirc file.

Project links

Data verified by PyPI on Aug 25, 2026
Data provided by the project maintainers, verified at the time the release was uploaded to PyPI.

Key dates

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Latest release

2 maintainers

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Avatar for Dominik.Moritz from gravatar.com Dominik.Moritz Avatar for jheer from gravatar.com jheer

GitHub Statistics

Data verified by PyPI on Aug 25, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

Requires

Python >=3.10

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This release

0.31.0 This release

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