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Detect workspace from uv run target#17423

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zanieb merged 2 commits intomainfrom
charlie/target-preview
Jan 12, 2026
Merged

Detect workspace from uv run target#17423
zanieb merged 2 commits intomainfrom
charlie/target-preview

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@charliermarsh
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Summary

Given uv run foo/bar.py, we now detect the workspace starting at foo/bar.py, rather than the current working directory. I think this is much more intuitive as demonstrated by the new test.

This change is currently in preview, but would ship as a breaking change in v0.10.

@charliermarsh charliermarsh added the preview Experimental behavior label Jan 12, 2026
@charliermarsh charliermarsh marked this pull request as ready for review January 12, 2026 19:17
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Can we document this somewhere? Perhaps in the uv run CLI help? A way to think about it... where would we explain this behavior once we change the default?

@zanieb zanieb merged commit 6d5e803 into main Jan 12, 2026
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@zanieb zanieb deleted the charlie/target-preview branch January 12, 2026 19:52
tmeijn pushed a commit to tmeijn/dotfiles that referenced this pull request Jan 17, 2026
This MR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [astral-sh/uv](https://github.com/astral-sh/uv) | patch | `0.9.24` → `0.9.26` |

MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot).

**Proposed changes to behavior should be submitted there as MRs.**

---

### Release Notes

<details>
<summary>astral-sh/uv (astral-sh/uv)</summary>

### [`v0.9.26`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#0926)

[Compare Source](astral-sh/uv@0.9.25...0.9.26)

Released on 2026-01-15.

##### Python

- Add CPython 3.15.0a5

##### Enhancements

- Add a hint to update uv when a managed Python download is not found ([#&#8203;17461](astral-sh/uv#17461))
- Improve cache initialization failure error message ([#&#8203;17469](astral-sh/uv#17469))
- Improve error message for abi3 wheels on free-threaded Python ([#&#8203;17442](astral-sh/uv#17442))
- Add support for `--no-sources-package` ([#&#8203;14910](astral-sh/uv#14910))

##### Preview features

- Add `METADATA.json` and `WHEEL.json` in uv build backend ([#&#8203;15510](astral-sh/uv#15510))
- Add support for GCS request signing ([#&#8203;17474](astral-sh/uv#17474))
- Adjust the process ulimit to the maximum allowed on startup ([#&#8203;17464](astral-sh/uv#17464))

##### Bug fixes

- Lock to avoid concurrent refresh of pyx tokens ([#&#8203;17479](astral-sh/uv#17479))

##### Documentation

- Add linting and formatting instructions to the CONTRIBUTING guide ([#&#8203;17470](astral-sh/uv#17470))
- Avoid rendering `pyproject.toml` examples for more system-level settings ([#&#8203;17462](astral-sh/uv#17462))

### [`v0.9.25`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#0925)

[Compare Source](astral-sh/uv@0.9.24...0.9.25)

Released on 2026-01-13.

##### Python

- Add CPython 3.15.0a4
- Upgrade Tcl/Tk used by CPython to 9.0

##### Enhancements

- Add `--compile-bytecode` to `uv python install` and `uv python upgrade` to compile the standard library ([#&#8203;17088](astral-sh/uv#17088))
- Allow disabling `exclude-newer` per package ([#&#8203;16854](astral-sh/uv#16854))
- Broadcast `WM_SETTINGCHANGE` on `uv tool update-shell` ([#&#8203;17404](astral-sh/uv#17404))

##### Preview features

- Detect workspace from `uv run` target ([#&#8203;17423](astral-sh/uv#17423))

##### Bug fixes

- Avoid unwrapping size for file responses ([#&#8203;17434](astral-sh/uv#17434))
- Use keyring authentication when retrieving `tool@latest` version ([#&#8203;17448](astral-sh/uv#17448))
- Use latest Pyodide version for each python version ([#&#8203;17372](astral-sh/uv#17372))
- Improve trampoline file handle closing ([#&#8203;17374](astral-sh/uv#17374))
- Fix error message when installing musl python on armv7 ([#&#8203;17213](astral-sh/uv#17213))

</details>

---

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♻ **Rebasing**: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this MR and you won't be reminded about this update again.

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---

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