These changes add support for
```
uv python pin 3.12 --global
```
This adds the specified version to a `.python-version` file in the
user-level config directory. uv will now use the user-level version as a
fallback if no version is found in the project directory or its
ancestors.
Closes#4972
Uses #6369 for test coverage.
Updates version file discovery to search up into parent directories.
Also refactors Python request determination to avoid duplicating the
user request / version file / workspace lookup logic in every command
(this supersedes the work started in
https://github.com/astral-sh/uv/pull/6372).
There is a bit of remaining work here, mostly around documentation.
There are some edge-cases where we don't use the refactored request
utility, like `uv build` — I'm not sure how I'm going to handle that yet
as it needs a separate root directory.
## Summary
I'm not convinced that the behavior is correct as-implemented. When the
user passes a `--python >=3.8` or we discover a `requires-python` from
the workspace, we're currently writing that request out to
`.python-version`. I would probably rather that we write the resolved
patch version?
Closes https://github.com/astral-sh/uv/issues/6821.
In https://github.com/astral-sh/uv/pull/6359, I accidentally made `uv
python install` prefer `.python-version` files over `.python-versions`
files -.-, kind of niche but it's a regression.
## Summary
uv run --directory <path> means that one doesn't have to change to a
project's directory to run programs from it. It makes it possible to use
projects as if they are tool installations.
To support this, first the code reading .python-version was updated so
that
it can read such markers outside the current directory. Note the minor
change this causes (if I'm right), described in the commit.
## Test Plan
One test has been added.
## --directory
Not sure what the name of the argument should be, but it's following uv
sync's directory for now.
Other alternatives could be "--project". Uv run and uv tool run should
probably find common agreement on this (relevant for project-locked
tools).
I've implemented this same change in Rye, some time ago, and then we
went
with --pyproject `<`path to pyproject.toml file`>`. I think using
pyproject.toml file path and not directory was probably a mistake, an
overgeneralization one doesn't need.
Whew this is a lot.
The user-facing changes are:
- `uv toolchain` to `uv python` e.g. `uv python find`, `uv python
install`, ...
- `UV_TOOLCHAIN_DIR` to` UV_PYTHON_INSTALL_DIR`
- `<UV_STATE_DIR>/toolchains` to `<UV_STATE_DIR>/python` (with
[automatic
migration](https://github.com/astral-sh/uv/pull/4735/files#r1663029330))
- User-facing messages no longer refer to toolchains, instead using
"Python", "Python versions" or "Python installations"
The internal changes are:
- `uv-toolchain` crate to `uv-python`
- `Toolchain` no longer referenced in type names
- Dropped unused `SystemPython` type (previously replaced)
- Clarified the type names for "managed Python installations"
- (more little things)
2024-07-03 07:44:29 -05:00
Renamed from crates/uv-toolchain/src/version_files.rs (Browse further)
