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Coerce empty string values to None
for UV_PYTHON
env var
#7878
Coerce empty string values to None
for UV_PYTHON
env var
#7878
Conversation
It looks like this will error. Do we want it to error, or is it supposed to "unset" the env var? Do you know what other tools do? |
I think we should silently ignore the variable if it's empty, generally. I am curious what other tools do though. |
Good question. I don't know what other tools do here but I think it feels reasonable to coerce empty strings to |
We have this pattern for |
I implemented your suggestion re: |
clap::builder::NonEmptyStringValueParser
for UV_PYTHON
env varNone
for UV_PYTHON
env var
Thanks, that's great! |
This MR contains the following updates: | Package | Update | Change | |---|---|---| | [astral-sh/uv](https://github.com/astral-sh/uv) | patch | `0.4.18` -> `0.4.20` | 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> ### [`v0.4.20`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#0420) [Compare Source](astral-sh/uv@0.4.19...0.4.20) ##### Enhancements - Add managed downloads for CPython 3.13.0 (final) ([#​8010](astral-sh/uv#8010)) - Python 3.13 is the default version for `uv python install` ([#​8010](astral-sh/uv#8010)) - Hint at wrong endpoint in `uv publish` failures ([#​7872](astral-sh/uv#7872)) - List available scripts when a command is not specified for `uv run` ([#​7687](astral-sh/uv#7687)) - Fill in `authors` field during `uv init` ([#​7756](astral-sh/uv#7756)) ##### Documentation - Add snapshot testing to contribution guide ([#​7882](astral-sh/uv#7882)) - Fix and improve GitLab integration docs ([#​8000](astral-sh/uv#8000)) ### [`v0.4.19`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#0419) [Compare Source](astral-sh/uv@0.4.18...0.4.19) ##### Enhancements - Add managed downloads for CPython 3.13.0rc3 and 3.12.7 ([#​7880](astral-sh/uv#7880)) - Display the target virtual environment path if non-default ([#​7850](astral-sh/uv#7850)) - Preserve case-insensitive sorts in `uv add` ([#​7864](astral-sh/uv#7864)) - Respect project upper bounds when filtering wheels on `requires-python` ([#​7904](astral-sh/uv#7904)) - Add `--script` to `uv run` to treat an input as PEP 723 regardless of extension ([#​7739](astral-sh/uv#7739)) - Improve legibility of build failure errors ([#​7854](astral-sh/uv#7854)) - Show interpreter source during Python discovery query errors ([#​7928](astral-sh/uv#7928)) ##### Configuration - Add `UV_FIND_LINKS` environment variable for `--find-links` ([#​7912](astral-sh/uv#7912)) - Ignore empty string values for `UV_PYTHON` environment variable ([#​7878](astral-sh/uv#7878)) ##### Bug fixes - Allow `py3x-none` tags in newer than Python 3.x ([#​7867](astral-sh/uv#7867)) - Allow self-dependencies in the `dev` section ([#​7943](astral-sh/uv#7943)) - Always ignore `cp2` wheels in resolution ([#​7902](astral-sh/uv#7902)) - Clear the publish progress bar on retry ([#​7921](astral-sh/uv#7921)) - Fix parsing of `gnueabi` libc variants in Python version requests ([#​7975](astral-sh/uv#7975)) - Simplify supported environments when comparing to lockfile ([#​7894](astral-sh/uv#7894)) - Trim commits when reading from Git refs ([#​7922](astral-sh/uv#7922)) - Use a higher HTTP read timeout when publishing packages ([#​7923](astral-sh/uv#7923)) - Remove the first empty line for `uv tree --package foo` ([#​7885](astral-sh/uv#7885)) ##### Documentation - Add 3.13 support to the platform reference ([#​7971](astral-sh/uv#7971)) - Clarify project environment creation ([#​7941](astral-sh/uv#7941)) - Fix code block title in Gitlab integration docs ([#​7861](astral-sh/uv#7861)) - Fix project guide section on adding a Git dependency ([#​7916](astral-sh/uv#7916)) - Fix uninstallation command for Windows ([#​7944](astral-sh/uv#7944)) - Clearly specify the minimum supported Windows Server version ([#​7946](astral-sh/uv#7946)) ##### Rust API - Remove unused `Sha256Reader` ([#​7929](astral-sh/uv#7929)) - Remove unnecessary `Deserialize` derives on settings ([#​7856](astral-sh/uv#7856)) </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:eyJjcmVhdGVkSW5WZXIiOiIzNy40NDAuNyIsInVwZGF0ZWRJblZlciI6IjM3LjQ0MC43IiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJSZW5vdmF0ZSBCb3QiXX0=-->
Summary
Closes #7841. If there are other env vars that would also benefit from this value parser, please let me know and I can add them to this PR.
Test Plan
When running the same example from the linked issue, it now works: