## Summary
This crate is for standards-compliant types, but this is explicitly a
type that's custom to uv. It's also strange because we kind of want to
reference `IndexUrl` on the registry type, but that's in a crate that
_depends_ on `uv-pypi-types`, which to me is a sign that this is off.
Previously, we required a username to perform a fetch from the keyring
because the `keyring` CLI only supported fetching password for a given
service and username. Unfortunately, this is different from the keyring
Python API which supported fetching a username _and_ password for a
given service. We can't (easily) use the Python API because we don't
expect `keyring` to be installed in a specific environment during
network requests. This means that we did not have parity with `pip`.
Way back in https://github.com/jaraco/keyring/pull/678 we got a `--mode
creds` flag added to `keyring`'s CLI which supports parity with the
Python API. Since `keyring` is expensive to invoke and we cannot be
certain that users are on the latest version of keyring, we've not added
support for invoking keyring with this flag. However, now that we have a
mode that says authentication is _required_ for an index (#11896), we
might as well _try_ to invoke keyring with `--mode creds` when there is
no username. This will address use-cases where the username is
non-constant and move us closer to `pip` parity.
## 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
...
```
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [reqwest](https://redirect.github.com/seanmonstar/reqwest) |
workspace.dependencies | patch | `0.12.14` -> `0.12.15` |
---
### Release Notes
<details>
<summary>seanmonstar/reqwest (reqwest)</summary>
###
[`v0.12.15`](https://redirect.github.com/seanmonstar/reqwest/blob/HEAD/CHANGELOG.md#v01215)
[Compare
Source](https://redirect.github.com/seanmonstar/reqwest/compare/v0.12.14...v0.12.15)
- Fix Windows to support both `ProxyOverride` and `NO_PROXY`.
- Fix http3 to support streaming response bodies.
- Fix http3 dependency from public API misuse.
</details>
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## Summary
This ended up being more involved than expected. The gist is that we
setup all the packages we want to reinstall upfront (they're passed in
on the command-line); but at that point, we don't have names for all the
packages that the user has specified. (Consider, e.g., `uv pip install
.` -- we don't have a name for `.`, so we can't add it to the list of
`Reinstall` packages.)
Now, `Reinstall` also accepts paths, so we can augment `Reinstall` based
on the user-provided paths.
Closes#12038.
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [syn](https://redirect.github.com/dtolnay/syn) |
workspace.dependencies | patch | `2.0.98` -> `2.0.100` |
---
### Release Notes
<details>
<summary>dtolnay/syn (syn)</summary>
###
[`v2.0.100`](https://redirect.github.com/dtolnay/syn/releases/tag/2.0.100)
[Compare
Source](https://redirect.github.com/dtolnay/syn/compare/2.0.99...2.0.100)
- Add `Visit::visit_token_stream`, `VisitMut::visit_token_stream_mut`,
`Fold::fold_token_stream` for processing TokenStream during syntax tree
traversals
([#​1852](https://redirect.github.com/dtolnay/syn/issues/1852))
###
[`v2.0.99`](https://redirect.github.com/dtolnay/syn/releases/tag/2.0.99)
[Compare
Source](https://redirect.github.com/dtolnay/syn/compare/2.0.98...2.0.99)
- Documentation improvements
</details>
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This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [tokio-util](https://tokio.rs)
([source](https://redirect.github.com/tokio-rs/tokio)) |
workspace.dependencies | patch | `0.7.13` -> `0.7.14` |
---
### Release Notes
<details>
<summary>tokio-rs/tokio (tokio-util)</summary>
###
[`v0.7.14`](https://redirect.github.com/tokio-rs/tokio/compare/tokio-util-0.7.13...tokio-util-0.7.14)
[Compare
Source](https://redirect.github.com/tokio-rs/tokio/compare/tokio-util-0.7.13...tokio-util-0.7.14)
</details>
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This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [thiserror](https://redirect.github.com/dtolnay/thiserror) |
workspace.dependencies | patch | `2.0.11` -> `2.0.12` |
---
### Release Notes
<details>
<summary>dtolnay/thiserror (thiserror)</summary>
###
[`v2.0.12`](https://redirect.github.com/dtolnay/thiserror/releases/tag/2.0.12)
[Compare
Source](https://redirect.github.com/dtolnay/thiserror/compare/2.0.11...2.0.12)
- Prevent elidable_lifetime_names pedantic clippy lint in generated impl
([#​413](https://redirect.github.com/dtolnay/thiserror/issues/413))
</details>
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This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [textwrap](https://redirect.github.com/mgeisler/textwrap) |
workspace.dependencies | patch | `0.16.1` -> `0.16.2` |
---
### Release Notes
<details>
<summary>mgeisler/textwrap (textwrap)</summary>
###
[`v0.16.2`](https://redirect.github.com/mgeisler/textwrap/blob/HEAD/CHANGELOG.md#Version-0162-2025-03-03)
[Compare
Source](https://redirect.github.com/mgeisler/textwrap/compare/0.16.1...0.16.2)
This release fixes an unnecessary `f64` cast, updates all dependencies,
bumps
the minimum supported Rust version to 1.70.
- [#​540](https://redirect.github.com/mgeisler/textwrap/pull/540):
Avoid spurious `f64`
cast and comparison.
- [#​565](https://redirect.github.com/mgeisler/textwrap/pull/565):
Configure automatic
Dependabot updates.
- [#​579](https://redirect.github.com/mgeisler/textwrap/pull/579):
Bump `rust-version` to
1.70.
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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
Reduce the overhead of `uv run` in large workspaces. Instead of
re-discovering the entire workspace each time we resolve the metadata of
a member, we can the discovered set of workspace members. Care needs to
be taken to not cache the discovery for `uv init`, `uv add` and `uv
remove`, which change the definitions of workspace members.
Below is apache airflow e3fe06382df4b19f2c0de40ce7c0bdc726754c74 `uv run
python` with a minimal payload. With this change, we avoid a ~350ms
overhead of each `uv run` invocation.
```
$ hyperfine --warmup 2 \
"uv run --no-dev python -c \"print('hi')\"" \
"uv-profiling run --no-dev python -c \"print('hi')\""
Benchmark 1: uv run --no-dev python -c "print('hi')"
Time (mean ± σ): 492.6 ms ± 7.0 ms [User: 393.2 ms, System: 97.1 ms]
Range (min … max): 482.3 ms … 501.5 ms 10 runs
Benchmark 2: uv-profiling run --no-dev python -c "print('hi')"
Time (mean ± σ): 129.7 ms ± 2.5 ms [User: 105.4 ms, System: 23.2 ms]
Range (min … max): 126.0 ms … 136.1 ms 22 runs
Summary
uv-profiling run --no-dev python -c "print('hi')" ran
3.80 ± 0.09 times faster than uv run --no-dev python -c "print('hi')"
```
The profile after those change below. We still spend a large chunk in
toml parsing (both `uv.lock` and `pyproject.toml`), but it's not
excessive anymore.
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [reflink-copy](https://redirect.github.com/cargo-bins/reflink-copy) |
workspace.dependencies | patch | `0.1.24` -> `0.1.25` |
---
### Release Notes
<details>
<summary>cargo-bins/reflink-copy (reflink-copy)</summary>
###
[`v0.1.25`](https://redirect.github.com/cargo-bins/reflink-copy/blob/HEAD/CHANGELOG.md#0125---2025-03-08)
[Compare
Source](https://redirect.github.com/cargo-bins/reflink-copy/compare/v0.1.24...v0.1.25)
##### Other
- Bump rustix from 0.38.34 to 1.0.1
([#​101](https://redirect.github.com/cargo-bins/reflink-copy/pull/101))
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Adds a new optional key `auth-policy` to `[tool.uv.index]` that sets the
authentication policy for the index URL.
The default is `"auto"`, which attempts to authenticate when necessary.
`"always"` always attempts to authenticate and fails if the endpoint is
unauthenticated. `"never"` never attempts to authenticate.
These policy address two kinds of cases:
* Some indexes don’t fail on unauthenticated requests; instead they just
forward to the public PyPI. This can leave the user confused as to why
their package is missing. The "always" policy prevents this.
* "never" allows users to ensure their credentials couldn't be leaked to
an unexpected index, though it will only allow for successful requests
on an index that doesn't require credentials.
Closes#11600
This PR moves functions for finding user- and system-level config
directories to public functions in `uv_fs::config`. This will allow them
to be used in future work without duplicating code.
This adds support for inferring dependency group conflict sets from the
directly defined conflicts in configuration. For example, if you declare
a conflict between groups `alpha` and `beta` and `dev` includes `beta`,
then we will infer a conflict between `dev` and `alpha`. We will also
handle a conflict between two groups if they transitively include groups
that conflict with each other. See #11232 for more details.
Closes#11232
Thank you for uv, it has game-changer capabilities in the field of
Python package and environment maangement!
## Summary
This is a small PR adding the option `module-name`
(`tool.uv.build-backend.module-name`) to the uv build backend (
https://github.com/astral-sh/uv/issues/8779 ).
Currently, the uv build backend will assume that the module name matches
the (dash to underdash-transformed) package name. In some packaging
scenarios this is not the case, and currently there exists no
possibility to override it, which this PR addresses.
From the main issue ( https://github.com/astral-sh/uv/issues/8779 ) I
could not tell if there is any extensive roadmap or plans how to
implement more complex scenarios, hence this PR as a suggestion for a
small feature with a big impact for certain scenarios.
I am new to Rust, I hope the borrow/reference usage is correct.
## Test Plan
So far I tested this at an example, if desired I can look into extending
the tests.
Fixes#11428
---------
Co-authored-by: konstin <konstin@mailbox.org>
uv itself is a large package with many dependencies and lots of
features. To build a package using the uv build backend, you shouldn't
have to download and install the entirety of uv. For platform where we
don't provide wheels, it should be possible and fast to compile the uv
build backend. To that end, we're introducing a python package that
contains a trimmed down version of uv that only contains the build
backend, with a minimal dependency tree in rust.
The `uv_build` package is publish from CI just like uv itself. It is
part of the workspace, but has much less dependencies for its own
binary. We're using cargo deny to enforce that the network stack is not
part of the dependencies. A new build profile ensure we're getting the
minimum possible binary size for a rust binary.
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
## Summary
I believe `zlib-rs` is now a better choice on ARM and x86, so I'm just
going to assume it's a better choice everywhere. It's much easier to
build (removes our CMake dependency), and in my benchmarking, it's
substantially faster on ARM and faster or ~exactly even on my x86
Windows machine.
We migrated to `zlib-rs` once before (#9184); however, I later reverted
it as I learned that they were only doing compile-time feature
detection, and so `zlib-rs` was meaningfully slower on x86. They now
perform runtime feature detection:
https://trifectatech.org/blog/zlib-rs-is-faster-than-c/.
To benchmark, I wrote a script to create a local Simple API-compliant
registry (see the commit history) for a single package. Then I ran the
`install-cold` benchmark against that registry to install NumPy.
On ARM:
```
❯ uv run resolver --uv-pip-path ../../zlib-ng --uv-pip-path ../../zlib-rs \
--benchmark install-cold \
req.txt --warmup 10 --min-runs 30
Benchmark 1: ../../zlib-ng (install-cold)
Time (mean ± σ): 165.7 ms ± 34.7 ms [User: 64.4 ms, System: 93.2 ms]
Range (min … max): 141.8 ms … 293.2 ms 30 runs
Benchmark 2: ../../zlib-rs (install-cold)
Time (mean ± σ): 150.9 ms ± 16.2 ms [User: 57.4 ms, System: 86.4 ms]
Range (min … max): 135.3 ms … 202.4 ms 30 runs
Summary
../../zlib-rs (install-cold) ran
1.10 ± 0.26 times faster than ../../zlib-ng (install-cold)
```
I benchmarked this about 100 times on my Windows machine and found it
difficult to conclude anything beyond "They're nearly the same". Here's
an example:
```
PS C:\Users\crmar\workspace\puffin> hyperfine --prepare "uv venv" "zlib-rs.exe pip sync ./scripts/benchmark/req.txt" "zlib-ng.exe pip sync ./scripts/benchmark/req.txt" "zlib-rs.exe pip sync ./scripts/benchmark/req.txt" "zlib-ng.exe pip sync ./scripts/benchmark/req.txt" --runs 10 --warmup 5
Benchmark 1: zlib-rs.exe pip sync ./scripts/benchmark/req.txt
Time (mean ± σ): 240.6 ms ± 10.8 ms [User: 6.1 ms, System: 92.2 ms]
Range (min … max): 229.4 ms … 267.9 ms 10 runs
Benchmark 2: zlib-ng.exe pip sync ./scripts/benchmark/req.txt
Time (mean ± σ): 241.3 ms ± 6.2 ms [User: 7.7 ms, System: 90.6 ms]
Range (min … max): 233.9 ms … 252.1 ms 10 runs
Benchmark 3: zlib-rs.exe pip sync ./scripts/benchmark/req.txt
Time (mean ± σ): 242.8 ms ± 7.7 ms [User: 6.2 ms, System: 23.4 ms]
Range (min … max): 236.1 ms … 262.8 ms 10 runs
Benchmark 4: zlib-ng.exe pip sync ./scripts/benchmark/req.txt
Time (mean ± σ): 245.9 ms ± 5.7 ms [User: 1.5 ms, System: 59.4 ms]
Range (min … max): 240.9 ms … 257.3 ms 10 runs
Summary
zlib-rs.exe pip sync ./scripts/benchmark/req.txt ran
1.00 ± 0.05 times faster than zlib-ng.exe pip sync ./scripts/benchmark/req.txt
1.01 ± 0.06 times faster than zlib-rs.exe pip sync ./scripts/benchmark/req.txt
1.02 ± 0.05 times faster than zlib-ng.exe pip sync ./scripts/benchmark/req.txt
```
Closes#11885.
