fix: --sandbox flag should add script metadata when none exists#7954
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fix: --sandbox flag should add script metadata when none exists#7954
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When using `marimo edit --sandbox notebook.py` on a file without PEP 723 script metadata, the marimo dependency and Python version were not being added. This caused `uv run notebook.py` to fail because marimo wasn't declared as a dependency. Now `_ensure_marimo_in_script_metadata()` will: - Create the script metadata block if it doesn't exist - Add `requires-python` with the current Python version - Add marimo as a dependency Also ensures `requires-python` is added when marimo is already present but the Python version is missing.
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mscolnick
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Jan 23, 2026
mscolnick
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Jan 23, 2026
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🚀 Development release published. You may be able to view the changes at https://marimo.app?v=0.19.6-dev6 |
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When using
marimo edit --sandbox notebook.pyon a file without PEP 723 script metadata, the marimo dependency and Python version were not being added. This causeduv run notebook.pyto fail because marimo wasn't declared as a dependency.Now
_ensure_marimo_in_script_metadata()will:requires-pythonwith the current Python versionAlso ensures
requires-pythonis added when marimo is already present but the Python version is missing.