Fix Python version selection for scripts with a requires-python conflicting with .python-version#18097
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zanieb merged 1 commit intoastral-sh:mainfrom Feb 24, 2026
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requires-python conflicting with .python-version
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| python_version.write_str("3.9")?; | ||
| python_version.write_str("3.11")?; | ||
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| // If the script contains a PEP 723 tag, we should install its requirements. |
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We have coverage for this elsewhere
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When running a PEP 723 script with `uv run`, the script's `requires-python` was ignored if a `.python-version` file existed, even if the pinned version was incompatible with the script's requirement. uv would use the incompatible version and only warn, instead of discovering a compatible Python. Now, when a `.python-version` file pins a Python version that is incompatible with the script's `requires-python`, uv overrides the request and uses the script's `requires-python` for Python discovery instead. Closes astral-sh#17717 https://claude.ai/code/session_012nTGYgPM5252DSz3Nx9nqn
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| script: Pep723ItemRef<'_>, | ||
| no_config: bool, | ||
| ) -> Result<Self, ProjectError> { | ||
| // First, discover a requirement from the workspace |
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The diff in this function isn't ideal and it duplicates some of the workspace logic, but I have a follow-up which refactors these implementations to share logic.
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This MR contains the following updates: | Package | Update | Change | |---|---|---| | [uv](https://github.com/astral-sh/uv) | patch | `0.10.4` → `0.10.6` | 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 (uv)</summary> ### [`v0.10.6`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#0106) [Compare Source](astral-sh/uv@0.10.5...0.10.6) Released on 2026-02-24. ##### Bug fixes - Apply lockfile marker normalization for fork markers ([#​18116](astral-sh/uv#18116)) - Fix Python version selection for scripts with a `requires-python` conflicting with `.python-version` ([#​18097](astral-sh/uv#18097)) - Preserve file permissions when using reflinks on Linux ([#​18187](astral-sh/uv#18187)) ##### Documentation - Remove verbose documentation from optional dependencies help text ([#​18180](astral-sh/uv#18180)) ### [`v0.10.5`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#0105) [Compare Source](astral-sh/uv@0.10.4...0.10.5) Released on 2026-02-23. ##### Enhancements - Add hint when named index is found in a parent config file ([#​18087](astral-sh/uv#18087)) - Add warning for `uv lock --frozen` ([#​17859](astral-sh/uv#17859)) - Attempt to use reflinks by default on Linux ([#​18117](astral-sh/uv#18117)) - Fallback to hardlinks after reflink failure before copying ([#​18104](astral-sh/uv#18104)) - Filter `pylock.toml` wheels by tags and `requires-python` ([#​18081](astral-sh/uv#18081)) - Validate wheel filenames are normalized during `uv publish` ([#​17783](astral-sh/uv#17783)) - Fix message when `exclude-newer` invalidates the lock file ([#​18100](astral-sh/uv#18100)) - Change the missing files log level to debug ([#​18075](astral-sh/uv#18075)) ##### Performance - Improve performance of repeated conflicts with an extra ([#​18094](astral-sh/uv#18094)) ##### Bug fixes - Fix `--no-emit-workspace` with `--all-packages` on single-member workspaces ([#​18098](astral-sh/uv#18098)) - Fix `UV_NO_DEFAULT_GROUPS` rejecting truthy values like `1` ([#​18057](astral-sh/uv#18057)) - Fix iOS detection ([#​17973](astral-sh/uv#17973)) - Propagate project-level conflicts to package extras ([#​18096](astral-sh/uv#18096)) - Use a global build concurrency semaphore ([#​18054](astral-sh/uv#18054)) ##### Documentation - Update documentation heading for environment variable files ([#​18122](astral-sh/uv#18122)) - Fix comment about `uv export` formats ([#​17900](astral-sh/uv#17900)) - Make it clear that Windows is supported in user- and system- level configuration docs ([#​18106](astral-sh/uv#18106)) </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **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. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this MR, check this box --- This MR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4zMS4xIiwidXBkYXRlZEluVmVyIjoiNDMuMzEuOSIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOlsiUmVub3ZhdGUgQm90IiwiYXV0b21hdGlvbjpib3QtYXV0aG9yZWQiLCJkZXBlbmRlbmN5LXR5cGU6OnBhdGNoIl19-->
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See #17717 (comment)
Updates
ScriptPython::from_requestto match the implementation ofWorkspacePython::from_requestand adds filtering such that if the.python-versionconflicts with therequires-python, we prefer the latter.