Simon Willison’s Weblog

Datasette 1.0a24. New Datasette alpha this morning. Key new features:

• Datasette's Request object can now handle multipart/form-data file uploads via the new await request.form(files=True) method. I plan to use this for a datasette-files plugin to support attaching files to rows of data.
• The recommended development environment for hacking on Datasette itself now uses uv. Crucially, you can clone Datasette and run uv run pytest to run the tests without needing to manually create a virtual environment or install dependencies first, thanks to the dev dependency group pattern.
• A new ?_extra=render_cell parameter for both table and row JSON pages to return the results of executing the render_cell() plugin hook. This should unlock new JavaScript UI features in the future.

More details in the release notes. I also invested a bunch of work in eliminating flaky tests that were intermittently failing in CI - I think those are all handled now.