What's Changed

Highlights ⭐

• 🧪 Test notebooks with pytest!. It's now possible to test notebooks using pytest! Running pytest test_notebook.py will run and test all cells whose name starts with test_*. This is only possible because marimo notebooks are stored as code (Python, not JSON!). Learn more at our docs. Shoutout to @dmadisetti for contributing this feature!

• 🔬Experimental tracing panel. This release includes an exciting new experimental tracing panel, giving you insight into which cells run, when, and for how long. Shoutout to @Light2Dark for contributing this feature! Enable it through the user settings (⚙ icon at the top right of your notebook).

• 🖱 Usability improvements. This release includes a number of usability improvements, including helpful prompts when you accidentally try using IPython magics, the ability to copy/paste the contents of a notebook file directly into the notebook (pasting creates cells!), the ability to use sandboxed notebooks with HTML export (thanks @metaboulie for contributing this!) and a few bug fixes.

All changes

• docs: show import marimo as mo at notebook top by @akshayka in https://github.com/marimo-team/marimo/pull/3243
• docs: fix marimo-embed of ui.dataframe by @akshayka in https://github.com/marimo-team/marimo/pull/3245
• tidy: Tweaks to enable pytest on marimo nbs by @dmadisetti in https://github.com/marimo-team/marimo/pull/3238
• fix: arrow key navigation taking precedence in inputs by @akshayka in https://github.com/marimo-team/marimo/pull/3244
• improve: parse google-style attributes in docstrings by @akshayka in https://github.com/marimo-team/marimo/pull/3247
• improvement: allow non-index.html files and add docs for wasm export by @mscolnick in https://github.com/marimo-team/marimo/pull/3248
• fix quotes in save.py:persistent_cache docstring by @gabrielgrant in https://github.com/marimo-team/marimo/pull/3255
• examples: ui element usage examples by @akshayka in https://github.com/marimo-team/marimo/pull/3254
• Add mapping for quaternion -> numpy-quaternion by @moble in https://github.com/marimo-team/marimo/pull/3253
• chore: make RPCs private methods by @akshayka in https://github.com/marimo-team/marimo/pull/3252
• fix: read sandbox dependencies when opening remote files by @akshayka in https://github.com/marimo-team/marimo/pull/3250
• Fix: ui.datetime() rendering with empty initial value by @devin-ai-integration in https://github.com/marimo-team/marimo/pull/3249
• feat(cli): add --sandbox flag to marimo export html command by @metaboulie in https://github.com/marimo-team/marimo/pull/3236
• docs: add marimo-embed-inline by @mscolnick in https://github.com/marimo-team/marimo/pull/3261
• docs: cleanup motherduck docs by @mscolnick in https://github.com/marimo-team/marimo/pull/3260
• improvement: help spread the love of marimo by @mscolnick in https://github.com/marimo-team/marimo/pull/3263
• improvement: map jupyter magic to helpful descriptions by @mscolnick in https://github.com/marimo-team/marimo/pull/3262
• improve: example installation instructions by @akshayka in https://github.com/marimo-team/marimo/pull/3265
• Update CONTRIBUTING.md by @singlebeam in https://github.com/marimo-team/marimo/pull/3268
• add trailing slash for /index.html redirects by @Light2Dark in https://github.com/marimo-team/marimo/pull/3269
• feat: make cells runnable with full arguments by @dmadisetti in https://github.com/marimo-team/marimo/pull/3251
• Update installation.md by @singlebeam in https://github.com/marimo-team/marimo/pull/3272
• docs: warn users more strongly against using mo.state() and on_change handlers. by @akshayka in https://github.com/marimo-team/marimo/pull/3266
• improvement: allow pasting full marimo applications in a cell by @mscolnick in https://github.com/marimo-team/marimo/pull/3273
• experimental: tracing panel by @Light2Dark in https://github.com/marimo-team/marimo/pull/3168
• improvement: handle pl.Duration by @mscolnick in https://github.com/marimo-team/marimo/pull/3274
• fix: number input reset by @devin-ai-integration in https://github.com/marimo-team/marimo/pull/3276
• test: Add unit tests for codemirror modules by @devin-ai-integration in https://github.com/marimo-team/marimo/pull/3275
• Integrate Biome with VCS to simplify ignore patterns by @manzt in https://github.com/marimo-team/marimo/pull/3283
• docs: pytest in marimo by @dmadisetti in https://github.com/marimo-team/marimo/pull/3281
• improvement: tracing perf, hide charts and skip markdown by @mscolnick in https://github.com/marimo-team/marimo/pull/3282

New Contributors

• @gabrielgrant made their first contribution in https://github.com/marimo-team/marimo/pull/3255
• @moble made their first contribution in https://github.com/marimo-team/marimo/pull/3253
• @singlebeam made their first contribution in https://github.com/marimo-team/marimo/pull/3268

Full Changelog: https://github.com/marimo-team/marimo/compare/0.10.6...0.10.7