@jtfmumm mentioned a desire for this. I'm not sure how we should do
this. I kind of want to change this to something like...
```
$ uv python find
CPython 3.13 @ <path>
$ uv python find --only-path
<path>
$ uv python find --short
<path>
$ uv python find --only-version
3.13
```
The change in defaults would be breaking though.
## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
Support the `UV_PROJECT` environment variable to set the project
directory.
#11946
## Test Plan
<!-- How was it tested? -->
`cargo nextest run` passed except the cache_prune.
```
export UV_PROJECT=/path/to/project
uv sync
```
works.
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
Adding dependency trace/parent comments ("via ...") to the export
command output.
This is a similar behavior to the pip compile output.
#### Note to the eager reviewer:
First of all - thanks!
Secondly, this is still a very rough draft. These are the first lines of
code I've ever written in Rust. This is still mostly an educational/fun
exercise for myself. If opening a Draft PR is creating too much noise -
I apologize and I will close it until it is ready.
## Summary
Resolves#7777
## Test Plan
- [X] manual command execution
- [x] update expected output in tests
---------
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
The idea here is that we introduce a new stdout_important method for
things that want to care about the difference between "quiet" and
"silent".
This PR is WIP because it has no actual uses of stdout_important, and we
should have at least one before landing this. Perhaps someone has a
suggestion for commands that would really benefit from this distinction?
Fixes#10431
## Summary
This fixes https://github.com/astral-sh/uv/issues/12426 which helps use
a more accurate arg name in the help output.
## Test Plan
I didn't test it locally, @charliermarsh gave me guidance on what to
change so I looked around that file for another example of `value_name`
and repeated what I saw. I kept it formatted to 1 line based on it not
being a long line. The other example of `value_name` had everything on
separate lines because there were a bunch of parameters passed in.
---------
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
Allows `uv python list <request>` to filter the installed list. I often
want this and it's not hard to add.
I tested the remote download filtering locally (#12381 is needed for
snapshot tests)
```
❯ cargo run -q -- python list --all-versions 3.13
cpython-3.13.2-macos-aarch64-none <download available>
cpython-3.13.1-macos-aarch64-none /opt/homebrew/opt/python@3.13/bin/python3.13 -> ../Frameworks/Python.framework/Versions/3.13/bin/python3.13
cpython-3.13.1-macos-aarch64-none <download available>
cpython-3.13.0-macos-aarch64-none /Users/zb/.local/share/uv/python/cpython-3.13.0-macos-aarch64-none/bin/python3.13
❯ cargo run -q -- python list --all-versions 3.13 --only-installed
cpython-3.13.1-macos-aarch64-none /opt/homebrew/opt/python@3.13/bin/python3.13 -> ../Frameworks/Python.framework/Versions/3.13/bin/python3.13
cpython-3.13.0-macos-aarch64-none /Users/zb/.local/share/uv/python/cpython-3.13.0-macos-aarch64-none/bin/python3.13
```
## Summary
Resolves#11794.
When `uv python find` is given a `--script` option, either the existing
environment for that script or the Python executable that would be used
to create it will be returned. If neither are found, the command exits
with exit code 1.
`--script` is incompatible with all other options to the same command.
## Test Plan
Unit tests.
## Summary
This is a prototype that I'm considering shipping under `--preview`,
based on [`light-the-torch`](https://github.com/pmeier/light-the-torch).
`light-the-torch` patches pip to pull PyTorch packages from the PyTorch
indexes automatically. And, in particular, `light-the-torch` will query
the installed CUDA drivers to determine which indexes are compatible
with your system.
This PR implements equivalent behavior under `--torch-backend auto`,
though you can also set `--torch-backend cpu`, etc. for convenience.
When enabled, the registry client will fetch from the appropriate
PyTorch index when it sees a package from the PyTorch ecosystem (and
ignore any other configured indexes, _unless_ the package is explicitly
pinned to a different index).
Right now, this is only implemented in the `uv pip` CLI, since it
doesn't quite fit into the lockfile APIs given that it relies on feature
detection on the currently-running machine.
## Test Plan
On macOS, you can test this with (e.g.):
```shell
UV_TORCH_BACKEND=auto UV_CUDA_DRIVER_VERSION=450.80.2 cargo run \
pip install torch --python-platform linux --python-version 3.12
```
On a GPU-enabled EC2 machine:
```shell
ubuntu@ip-172-31-47-149:~/uv$ UV_TORCH_BACKEND=auto cargo run pip install torch -v
Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
Running `target/debug/uv pip install torch -v`
DEBUG uv 0.6.6 (e95ca063b 2025-03-14)
DEBUG Searching for default Python interpreter in virtual environments
DEBUG Found `cpython-3.13.0-linux-x86_64-gnu` at `/home/ubuntu/uv/.venv/bin/python3` (virtual environment)
DEBUG Using Python 3.13.0 environment at: .venv
DEBUG Acquired lock for `.venv`
DEBUG At least one requirement is not satisfied: torch
warning: The `--torch-backend` setting is experimental and may change without warning. Pass `--preview` to disable this warning.
DEBUG Detected CUDA driver version from `/sys/module/nvidia/version`: 550.144.3
...
```
Currently, for users to specify at the command line whether to use
uv-managed or system Python interpreters, they use the
`--python-preference` parameter, which takes four possible values. This
is more complex than necessary since the normal case is to either say
"only managed" or "not managed". This PR hides the old
`--python-preference` parameter from help and documentation and adds two
new flags: `--managed-python` and `--no-managed-python` to capture the
"only managed" and "not managed" cases.
I have successfully tested this locally but currently cannot add
snapshot tests because of problems with distinguishing managed vs.
system interpreters in CI (and non-determinism when run on different
developers' machines). The `--python-preference` test in
`tool-install.rs` is currently ignored for this reason. See #5144 and
#7473.
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
This is a minimal redux of #10861 to be compatible with `uv pip`.
This implements the interface described in:
https://github.com/pypa/pip/pull/13065#issuecomment-2544000876 for `uv
pip install` and `uv pip compile`. Namely `--group <[path:]name>`, where
`path` when not defined defaults to `pyproject.toml`.
In that interface they add `--group` to `pip install`, `pip download`,
and `pip wheel`. Notably we do not define `uv pip download` and `uv pip
wheel`, so for parity we only need to implement `uv pip install`.
However, we also support `uv pip compile` which is not part of pip
itself, and `--group` makes sense there too.
----
The behaviour of `--group` for `uv pip` commands makes sense for the
cases upstream pip supports, but has confusing meanings in cases that
only we support (because reading pyproject.tomls is New Tech to them but
heavily supported by us). **Specifically case (h) below is a concerning
footgun, and case (e) below may get complaints from people who aren't
well-versed in dependency-groups-as-they-pertain-to-wheels.**
## Only Group Flags
Group flags on their own work reasonably and uncontroversially, except
perhaps that they don't do very clever automatic project discovery.
a) `uv pip install --group path/to/pyproject.toml:mygroup` pulls up
`path/to/project.toml` and installs all the packages listed by its
`mygroup` dependency-group (essentially treating it like another kind of
requirements.txt). In this regard it functions similarly to
`--only-group` in the rest of uv's interface.
b) `uv pip install --group mygroup` is just sugar for `uv pip install
--group pyproject.toml:mygroup` (**note that no project discovery
occurs**, upstream pip simply hardcodes the path "pyproject.toml" here
and we reproduce that.)
c) `uv pip install --group a/pyproject.toml:groupx --group
b/pyproject.toml:groupy`, and any other instance of multiple `--group`
flags, can be understood as completely independent requests for the
given groups at the given files.
## Groups With Named Packages
Groups being mixed with named packages also work in a fairly
unsurprising way, especially if you understand that things like
dependency-groups are not really supposed to exist on pypi, they're just
for local development.
d) `uv pip install mypackage --group path/to/pyproject.toml:mygroup`
much like multiple instances of `--group` the two requests here are
essentially completely independent: pleases install `mypackage`, and
please also install `path/to/pyproject.toml:mygroup`.
e) `uv pip install mypackage --group mygroup` is exactly the same, but
this is where it becomes possible for someone to be a little confused,
as you might think `mygroup` is supposed to refer to `mypackage` in some
way (it can't). But no, it's sourcing `pyproject.toml:mygroup` from the
current working directory.
## Groups With Requirements/Sourcetrees/Editables
Requirements and sourcetrees are where I expect users to get confused.
It behaves *exactly* the same as it does in the previous sections but
you would absolutely be forgiven for expecting a different behaviour.
*Especially* because `--group` with the rest of uv *does* do something
different.
f) `uv pip install -r a/pyproject.toml --group b/pyproject.toml:mygroup`
is again just two independent requests (install `a/pyproject.toml`'s
dependencies, and `b/pyproject.toml`'s `mygroup`).
g) `uv pip install -r pyproject.toml --group mygroup` is exactly like
the previous case but *incidentally* the two requests refer to the same
file. What the user wanted to happen is almost certainly happening, but
they are likely getting "lucky" here that they're requesting something
simple.
h) `uv pip install -r a/pyproject.toml --group mygroup` is again exactly
the same but the user is likely to get surprised and upset as this
invocation actually sources two different files (install
`a/pyproject.toml`'s dependencies, and `pyproject.toml`'s `mygroup`)! I
would expect most people to assume the `--group` flag here is covering
all applicable requirements/sourcetrees/editables, but no, it continues
to be a totally independent reference to a file with a hardcoded
relative path.
------
Fixes https://github.com/astral-sh/uv/issues/8590
Fixes https://github.com/astral-sh/uv/issues/8969
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
<!--
Thank you for contributing to uv! To help us out with reviewing, please
consider the following:
- Does this pull request include a summary of the change? (See below.)
- Does this pull request include a descriptive title?
- Does this pull request include references to any relevant issues?
-->
## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
Similar to https://github.com/astral-sh/uv/pull/11399
This adds `UV_NO_BUILD` and `UV_NO_BUILD_PACKAGE` environment variables
for non-pip commands.
## Test Plan
<!-- How was it tested? -->
Tested manually and with snapshot tests.
Fixes#11963
Signed-off-by: Alex Lowe <alex@lowe.dev>
<!--
Thank you for contributing to uv! To help us out with reviewing, please
consider the following:
- Does this pull request include a summary of the change? (See below.)
- Does this pull request include a descriptive title?
- Does this pull request include references to any relevant issues?
-->
## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
## Test Plan
<!-- How was it tested? -->
Closes#11285
Closes https://github.com/astral-sh/uv/pull/11437
This changes `-p` from an alias of `--python-version` to `--python`
while retaining backwards compatibility for `--python-version`-like
fallback behavior when the requested version, e.g., `-p 3.12`, cannot be
found.
This was initially implemented with a hidden `--python-legacy` flag
which allows us to special case the short `-p` flag — unlike the
implementation in #11437. However, after further discussion, we decided
the behavior difference between `-p` and `--python` would be confusing
so now `-p` is an alias for `--python` and `--python` is special-cased
when a version is used.
Additionally, we now respect the `UV_PYTHON` environment variable, but
it is ignored when `--python-version` is set. If you want different
`--python-version` and `--python` values, you must do so explicitly. I
considered banning this, but it is valid for e.g. `--python pypy
--python-version 3.12`
Unlike https://github.com/astral-sh/uv/pull/10222, this does not respect
`UV_PYTHON` in `uv python uninstall` (continuing to require an explicit
target there) which I think is simpler and matches our `.python-version`
file behavior.
---------
Co-authored-by: Choudhry Abdullah <cabdulla@trinity.edu>
Co-authored-by: Choudhry Abdullah <choudhry347@choudhrys-air-2.trinity.local>
Co-authored-by: Aria Desires <aria.desires@gmail.com>
## Summary
The environment is located at a stable path within the cache, based on
the script's absolute path.
If a lockfile exists for the script, then we use our standard lockfile
semantics (i.e., update the lockfile if necessary, etc.); if not, we
just do a `uv pip sync` (roughly).
Example usage:
```
❯ uv init --script hello.py
Initialized script at `hello.py`
❯ uv add --script hello.py requests
Updated `hello.py`
❯ cargo run sync --script hello.py
Using script environment at: /Users/crmarsh/.cache/uv/environments-v1/hello-84e289fe3f6241a0
Resolved 5 packages in 3ms
Installed 5 packages in 12ms
+ certifi==2025.1.31
+ charset-normalizer==3.4.1
+ idna==3.10
+ requests==2.32.3
+ urllib3==2.3.0
```
Closes https://github.com/astral-sh/uv/issues/6637.
<!--
Thank you for contributing to uv! To help us out with reviewing, please
consider the following:
- Does this pull request include a summary of the change? (See below.)
- Does this pull request include a descriptive title?
- Does this pull request include references to any relevant issues?
-->
## Summary
This adds `NO_BINARY` and `NO_BINARY_PACKAGE` environment variables to
the uv CLI, allowing the user to specify packages to build from source
using environment variables. Its not a complete fix for #4291 as it does
not handle the `pip` subcommand.
## Test Plan
This was tested by running `uv sync` with various `UV_NO_BINARY` and
`UV_NO_BINARY_PACKAGE` environment variables set and checking that the
correct set of packages were compiled rather than taken from pre-built
wheels.
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
I think `UV_PROJECT_ENVIRONMENT` is too complicated for use-cases where
the user wants to sync to the active environment. I don't see a
compelling reason not to make opt-in easier. I see a lot of questions
about how to deal with this warning in the issue tracker, but it seems
painful to collect them here for posterity.
A notable behavior here — we'll treat this as equivalent to
`UV_PROJECT_ENVIRONMENT` so... if you point us to a valid virtual
environment that needs to be recreated for some reason (e.g., new Python
version request), we'll happily delete it and start over.
## Summary
Fixes a recurring typo.
## Details
There's a typo appearing in a particular sentence...
> Ignore package dependencies, instead only add those packages
explicitly listed on the command line to the resulting **the**
requirements file.
... used in:
* `crates/uv-cli/src/lib.rs`
* `crates/uv-settings-src-settings.rs`
* `docs/reference/settings.md`
* `uv.schem.json`
Docs, comments and a CLI command description seem affected.
This PR fixes it.
---------
Co-authored-by: bujnok01 <bujnok01@heiway.net>
I'm sorry, but I was writing some new content here and the inconsistent
wrapping was very hard to maintain and I didn't want to muddy the diff
there with reflowing.
I don't think we need to be strict about the reflow (I'm not sure we
even can be) but some of these were very far off from our typical wrap
length.
We'll probably end up shipping but we were moving ahead with this on the
basis that pip may not even ship this, so let's play it safe and wait
for a bit.
Ultimately this is a lot of settings plumbing and a couple minor pieces
of Actual Logic (which are so simple I have to assume there's something
missing, but maybe not!).
Note this "needlessly" use DevDependencyGroup since it costs nothing, is
more futureproof, and lets us maintain one primary interface (we just
pass `false` for all the dev arguments).
Fixes#8590Fixes#8969
<!--
Thank you for contributing to uv! To help us out with reviewing, please
consider the following:
- Does this pull request include a summary of the change? (See below.)
- Does this pull request include a descriptive title?
- Does this pull request include references to any relevant issues?
-->
## Summary
I use `uv` for automation on remote hosts and it would be useful to have
it be able to tell me the supported versions of python (for the remote
machine) in a machine readable manner so I do not need to parse `uv
python list`.
This change adds `--format (json|text)` to `uv python list` to make it's
output machine readable
Loosely related:
- https://github.com/astral-sh/uv/issues/411
## Test Plan
Manually tested via
```
# quick inspection without pretty print
cargo run -- python list --format json
```
### Short example of output (trimmed down)
Cmd: `cargo run -- python list --format json | jq '.[:2]'`
```json
[
{
"key": "cpython-3.13.1+freethreaded-linux-x86_64-gnu",
"version": "3.13.1",
"version_parts": {
"major": 3,
"minor": 13,
"patch": 1
},
"path": null,
"symlink": null,
"url": "20241219/cpython-3.13.1%2B20241219-x86_64-unknown-linux-gnu-freethreaded%2Bpgo%2Blto-full.tar.zst",
"os": "linux",
"variant": "freethreaded",
"implementation": "cpython",
"arch": "x86_64",
"libc": "gnu"
},
{
"key": "cpython-3.13.1-linux-x86_64-gnu",
"version": "3.13.1",
"version_parts": {
"major": 3,
"minor": 13,
"patch": 1
},
"path": "/usr/bin/python3.13",
"symlink": null,
"url": null,
"os": "linux",
"variant": "default",
"implementation": "cpython",
"arch": "x86_64",
"libc": "gnu"
}
]
```
---------
Co-authored-by: John Zlotek <jzlotek@gmail.com>
## Summary
Resolves#5952
Add a `--path` option to `uv pip freeze` to be compatible with `pip
freeze`
## Test Plan
New snapshot tests
---------
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
## Summary
You can now run `uv tree --script main.py` to show the dependency tree
for a given script. If a lockfile doesn't exist, it will create one.
Closes https://github.com/astral-sh/uv/issues/7328.
## Summary
You can now run `uv lock --script main.py` to lock a given script
(though as of this PR, the script itself isn't used anywhere).
Closes https://github.com/astral-sh/uv/issues/6318.
