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Require opt-in to use alternative Python implementations #7650
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@@ -1793,7 +1793,7 @@ mod tests { | |||
})?; |
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Note we don't have test coverage for this because we don't test Python discovery with managed interpreters. I'll create an issue to track infrastructure for this.
pub(crate) fn allows_alternative_implementations(&self) -> bool { | ||
match self { | ||
Self::Default => false, | ||
Self::Any => true, |
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Why is Any
true but (e.g.) Version
and Default
false?
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Per #7526 we want to distinguish between discovery that allows any interpreter and discovery of a good default interpreter. Any
should never filter an interpreter. Default
filters alternative implementations because they require opt-in. Version
filters alternative implementations because asking for 3.13
isn't enough to select PyPy, we need pypy@3.13
which is ImplementationVersion
.
crates/uv-python/src/discovery.rs
Outdated
&& !installation.source.allows_alternative_implementations() | ||
// Installing an alternative implementation with a default executable name is opt-in | ||
&& !(installation.interpreter.has_default_executable_name() | ||
&& installation.source == PythonSource::SearchPath) |
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I think I need this part explained. This is, like, if the executable is named python
but it's really PyPy?
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Yes, if you have PyPy on the front of your PATH as python
or python3
that counts as opting in, to fulfill the principle that $ python
and $ uv python find --python-preference only-system
should generally use the same executable.
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I futzed with the commentary and implementation here a fair bit. I would kind of like to track the executable name on PythonSource::SearchPath
and implement this logic in PythonSource::allows_alternative_implementations()
but that would be fairly disruptive.
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// If the interpreter has a default executable name, e.g. `python`, and was found on the | ||
// search path, we consider this opt-in to use it. | ||
let has_default_executable_name = installation.interpreter.has_default_executable_name() | ||
&& installation.source == PythonSource::SearchPath; |
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Oh ok, this makes sense, comment is helpful.
if installation.python_version().pre().is_some() | ||
&& !request.allows_prereleases() | ||
&& !installation.source.allows_prereleases() | ||
&& !has_default_executable_name | ||
{ | ||
debug!("Skipping pre-release {}", installation.key()); | ||
first_prerelease = Some(installation.clone()); |
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Does this need to be under if first_prerelease.is_none()
, so we don't set it repeatedly?
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Yes! #7666
This MR contains the following updates: | Package | Update | Change | |---|---|---| | [astral-sh/uv](https://github.com/astral-sh/uv) | patch | `0.4.15` -> `0.4.18` | 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> ### [`v0.4.18`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#0418) [Compare Source](astral-sh/uv@0.4.17...0.4.18) ##### Enhancements - Allow multiple source entries for each package in `tool.uv.sources` ([#​7745](astral-sh/uv#7745)) - Add `.gitignore` file to `uv build` output directory ([#​7835](astral-sh/uv#7835)) - Disable jemalloc on FreeBSD ([#​7780](astral-sh/uv#7780)) - Respect `PAGER` env var when paging in `uv help` command ([#​5511](astral-sh/uv#5511)) - Support `uv run -m foo` to run a module ([#​7754](astral-sh/uv#7754)) - Use a top-level output directory for `uv build` in workspaces ([#​7813](astral-sh/uv#7813)) - Update `uv init --package` command to match project name ([#​7670](astral-sh/uv#7670)) - Add a custom suggestion for `uv add dotenv` ([#​7799](astral-sh/uv#7799)) - Add detailed errors for `tool.uv.sources` deserialization failures ([#​7823](astral-sh/uv#7823)) - Improve error message copy for failed builds ([#​7849](astral-sh/uv#7849)) - Use `serde-untagged` to improve some untagged enum error messages ([#​7822](astral-sh/uv#7822)) - Use build failure hints for `dotenv` errors, rather than in `uv add` ([#​7825](astral-sh/uv#7825)) ##### Configuration - Add `UV_NO_SYNC` environment variable ([#​7752](astral-sh/uv#7752)) ##### Bug fixes - Accept `git+` prefix in `tool.uv.sources` ([#​7847](astral-sh/uv#7847)) - Allow spaces in path requirements ([#​7767](astral-sh/uv#7767)) - Avoid reusing cached downloaded binaries with `--no-binary` ([#​7772](astral-sh/uv#7772)) - Correctly trims values during wheel WHEEL file parsing ([#​7770](astral-sh/uv#7770)) - Fix `uv tree --invert` for platform dependencies ([#​7808](astral-sh/uv#7808)) - Fix encoding mismatch between python child process and uv ([#​7757](astral-sh/uv#7757)) - Reject self-dependencies in `uv add` ([#​7766](astral-sh/uv#7766)) - Respect `tool.uv.environments` for legacy virtual workspace roots ([#​7824](astral-sh/uv#7824)) - Retain empty extras on workspace members ([#​7762](astral-sh/uv#7762)) - Use file stem when parsing cached wheel names ([#​7773](astral-sh/uv#7773)) ##### Rust API - Make `FlatDistributions` public ([#​7833](astral-sh/uv#7833)) ##### Documentation - Fix table of contents sizing ([#​7751](astral-sh/uv#7751)) - GitLab Integration documentation ([#​6857](astral-sh/uv#6857)) - Update documentation to setup-uv@v3 ([#​7807](astral-sh/uv#7807)) - Use `uv publish` instead of twine in docs ([#​7837](astral-sh/uv#7837)) - Fix typo in `projects.md` ([#​7784](astral-sh/uv#7784)) ### [`v0.4.17`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#0417) [Compare Source](astral-sh/uv@0.4.16...0.4.17) ##### Enhancements - Add `uv build --all` to build all packages in a workspace ([#​7724](astral-sh/uv#7724)) - Add support for `uv init --script` ([#​7565](astral-sh/uv#7565)) - Add support for upgrading build environment for installed tools (`uv tool upgrade --python`) ([#​7605](astral-sh/uv#7605)) - Initialize a Git repository in `uv init` ([#​5476](astral-sh/uv#5476)) - Respect `--quiet` flag in `uv build` ([#​7674](astral-sh/uv#7674)) - Add context message before listing available tools in `uvx` ([#​7641](astral-sh/uv#7641)) ##### Bug fixes - Don't create Python bytecode files during interpreter discovery ([#​7707](astral-sh/uv#7707)) - Escape glob patterns in workspace member discovery ([#​7709](astral-sh/uv#7709)) - Avoid prefetching source distributions with unbounded lower-bound ranges ([#​7683](astral-sh/uv#7683)) ##### Documentation - Add `uv build` and `uv publish` to features overview ([#​7716](astral-sh/uv#7716)) - Add documentation on cache versioning ([#​7693](astral-sh/uv#7693)) - Spell out the names of the Docker images for easier copy-paste ([#​7706](astral-sh/uv#7706)) - Document uv-with-Jupyter workflows ([#​7625](astral-sh/uv#7625)) - Note that `uv lock --upgrade-package` retains locked versions ([#​7694](astral-sh/uv#7694)) ### [`v0.4.16`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#0416) [Compare Source](astral-sh/uv@0.4.15...0.4.16) ##### Enhancements - Add `uv publish` ([#​7475](astral-sh/uv#7475)) - Add a `--project` argument to run a command from a project directory ([#​7603](astral-sh/uv#7603)) - Display Python implementation when creating environments ([#​7652](astral-sh/uv#7652)) - Implement trusted publishing for `uv publish` ([#​7548](astral-sh/uv#7548)) - Respect lockfile preferences for `--with` requirements ([#​7627](astral-sh/uv#7627)) - Unhide the `--directory` option ([#​7653](astral-sh/uv#7653)) - Allow requesting free-threaded Python interpreters ([#​7431](astral-sh/uv#7431)) - Show a dedicated PubGrub hint for `--unsafe-best-match` ([#​7645](astral-sh/uv#7645)) - Add resolver error checking for conflicting distributions ([#​7595](astral-sh/uv#7595)) ##### Bug fixes - Avoid adding double-newlines for CRLF ([#​7640](astral-sh/uv#7640)) - Avoid retaining forks when `requires-python` range changes ([#​7624](astral-sh/uv#7624)) - Determine if pre-release Python downloads should be allowed using the version specifiers ([#​7638](astral-sh/uv#7638)) - Fix `link-mode=clone` for directories on Linux ([#​7620](astral-sh/uv#7620)) - Improve Python executable name discovery when using alternative implementations ([#​7649](astral-sh/uv#7649)) - Require opt-in to use alternative Python implementations ([#​7650](astral-sh/uv#7650)) - Use the first pre-release discovered when only pre-release Python versions are available ([#​7666](astral-sh/uv#7666)) ##### Documentation - Document environment variable that disables printing of virtual environment name in prompt ([#​7648](astral-sh/uv#7648)) - Remove double whitespaces from the code ([#​7623](astral-sh/uv#7623)) - Use anchorlinks rather than permalinks ([#​7626](astral-sh/uv#7626)) ##### Preview features - Add build backend scaffolding ([#​7662](astral-sh/uv#7662)) </details> --- ### Configuration 📅 **Schedule**: Branch creation - 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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=-->
Closes #7118
This only really affects managed interpreters, as we exclude alternative Python implementations from the search path during the
VersionRequest::executable_names
part of discovery.