Previously we were using the XDG data dir to avoid symlinks, but there's no
particular guarantee that that's not going to be a symlink too. Using the
canonicalized temp dir by default is also slightly nicer for a couple reasons:
It's sometimes faster (an in-memory tempfs on e.g. Arch), and it makes
overriding `$TMPDIR` or `%TMP%` sufficient to control where tests put temp
files, without needing to override `UV_INTERNAL__TEST_DIR` too.
## Summary
Allows `--torch-backend=auto` to detect AMD GPUs. The approach is fairly
well-documented inline, but I opted for `rocm_agent_enumerator` over
(e.g.) `rocminfo` since it seems to be the recommended approach for
scripting:
https://rocm.docs.amd.com/projects/rocminfo/en/latest/how-to/use-rocm-agent-enumerator.html.
Closes https://github.com/astral-sh/uv/issues/14086.
## Test Plan
```
root@rocm-jupyter-gpu-mi300x1-192gb-devcloud-atl1:~# ./uv-linux-libc-11fb582c5c046bae09766ceddd276dcc5bb41218/uv pip install torch --torch-backend=auto
Resolved 11 packages in 251ms
Prepared 2 packages in 6ms
Installed 11 packages in 257ms
+ filelock==3.18.0
+ fsspec==2025.5.1
+ jinja2==3.1.6
+ markupsafe==3.0.2
+ mpmath==1.3.0
+ networkx==3.5
+ pytorch-triton-rocm==3.3.1
+ setuptools==80.9.0
+ sympy==1.14.0
+ torch==2.7.1+rocm6.3
+ typing-extensions==4.14.0
```
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
Part of #11834
Currently, all Python installation are a streaming download-and-extract.
With this PR, we add the `UV_PYTHON_CACHE_DIR` variable. When set, the
installation is split into downloading the interpreter into
`UV_PYTHON_CACHE_DIR` and extracting it there from a second step. If the
archive is already present in `UV_PYTHON_CACHE_DIR`, we skip the
download.
The feature can be used to speed up tests and CI. Locally for me, `cargo
test -p uv -- python_install` goes from 43s to 7s (1,7s in release mode)
when setting `UV_PYTHON_CACHE_DIR`. It can also be used for offline
installation of Python interpreter, by copying the archives to a
directory in the offline machine, while the path rewriting is still
performed on the target machine on installation.
See #12769 for the motivation. We set the 4MB not only for the main
thread, but also for all tokio and rayon threads to fix a stack overflow
while unpacking wheels in production on Windows.
There are two variables for setting the stack size: A new
`UV_STACK_SIZE` that takes precedent, and the existing `RUST_MIN_STACK`.
When setting the stack size, `UV_STACK_SIZE` should be preferred, since
`RUST_MIN_STACK` affects all Rust applications, including build backends
we call (e.g., maturin). The minimum stack size is set to 1MB, the
lowest stack size we observed on a platform (Windows main thread).
Fixes#12769
## Test Plan
Tested manually with the example from #12769
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## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
Adds the env arg `UV_NO_EDITABLE`.
Closes#12735
## Test Plan
<!-- How was it tested? -->
I could not find a place where to add tests, any help would be
appreciated
---------
Co-authored-by: Aria Desires <aria.desires@gmail.com>
## Summary
Add an option to overwrite the list of available Python downloads from a
local JSON file by using the environment variable
`UV_PYTHON_DOWNLOADS_JSON_URL`
as an experimental support for providing custom sources for Python
distribution binaries #8015
related #10203
I probably should make the JSON to be fetched from a remote URL instead
of a local file.
please let me know what you think and I will modify the code
accordingly.
## Test Plan
### normal run
```
root@75c66494ba8b:/# /code/target/release/uv python list
cpython-3.14.0a4+freethreaded-linux-x86_64-gnu <download available>
cpython-3.14.0a4-linux-x86_64-gnu <download available>
cpython-3.13.1+freethreaded-linux-x86_64-gnu <download available>
cpython-3.13.1-linux-x86_64-gnu <download available>
cpython-3.12.8-linux-x86_64-gnu <download available>
cpython-3.11.11-linux-x86_64-gnu <download available>
cpython-3.10.16-linux-x86_64-gnu <download available>
cpython-3.9.21-linux-x86_64-gnu <download available>
cpython-3.8.20-linux-x86_64-gnu <download available>
cpython-3.7.9-linux-x86_64-gnu <download available>
pypy-3.10.14-linux-x86_64-gnu <download available>
pypy-3.9.19-linux-x86_64-gnu <download available>
pypy-3.8.16-linux-x86_64-gnu <download available>
pypy-3.7.13-linux-x86_64-gnu <download available>
```
### empty JSON file
```sh
root@75c66494ba8b:/# export UV_PYTHON_DOWNLOADS_JSON_URL=/code/crates/uv-python/my-download-metadata.json
root@75c66494ba8b:/# cat $UV_PYTHON_DOWNLOADS_JSON_URL
{}
root@75c66494ba8b:/# /code/target/release/uv python list
root@75c66494ba8b:/#
```
### JSON file with valid version
```sh
root@75c66494ba8b:/# export UV_PYTHON_DOWNLOADS_JSON_URL=/code/crates/uv-python/my-download-metadata.json
root@75c66494ba8b:/# cat $UV_PYTHON_DOWNLOADS_JSON_URL
{
"cpython-3.11.9-linux-x86_64-gnu": {
"name": "cpython",
"arch": {
"family": "x86_64",
"variant": null
},
"os": "linux",
"libc": "gnu",
"major": 3,
"minor": 11,
"patch": 9,
"prerelease": "",
"url": "20240814/cpython-3.11.9%2B20240814-x86_64-unknown-linux-gnu-install_only_stripped.tar.gz",
"sha256": "daa487c7e73005c4426ac393273117cf0e2dc4ab9b2eeda366e04cd00eea00c9",
"variant": null
}
}
root@75c66494ba8b:/# /code/target/release/uv python list
cpython-3.11.9-linux-x86_64-gnu <download available>
root@75c66494ba8b:/#
```
### Remote Path
```sh
root@75c66494ba8b:/# export UV_PYTHON_DOWNLOADS_JSON_URL=http://a.com/file.json
root@75c66494ba8b:/# /code/target/release/uv python list
error: Remote python downloads JSON is not yet supported, please use a local path (without `file://` prefix)
```
---------
Co-authored-by: Aria Desires <aria.desires@gmail.com>
## Summary
closes#12234
[fetch_with_cli](e0f81f0d4a/crates/uv-git/src/git.rs (L573))
doesn't respect the registry client's [connectivity
setting](e0f81f0d4a/crates/uv-client/src/registry_client.rs (L1009))
- this pr updates `fetch_with_cli` to set `GIT_ALLOW_PROTOCOL=file` when
the client's connectivity setting is `Connectivity::Offline`
## Test Plan
E2E
```sh
cargo run add "pycurl @ git+https://github.com/pycurl/pycurl.git" --directory ~/src/offline-test/ --offline
```
```sh
Compiling uv-cli v0.0.1 (/Users/justinchapman/src/uv/crates/uv-cli)
Compiling uv v0.6.11 (/Users/justinchapman/src/uv/crates/uv)
Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.47s
Running `target/debug/uv add 'pycurl @ git+https://github.com/pycurl/pycurl.git' --directory /Users/justinchapman/src/offline-test/ --offline`
Updating https://github.com/pycurl/pycurl.git (HEAD) × Failed to download and build `pycurl @ git+https://github.com/pycurl/pycurl.git`
├─▶ Git operation failed
├─▶ failed to fetch into: /Users/justinchapman/.cache/uv/git-v0/db/9a596e5213c3162d
╰─▶ process didn't exit successfully: `/usr/bin/git fetch --force --update-head-ok 'https://github.com/pycurl/pycurl.git' '+HEAD:refs/remotes/origin/HEAD'` (exit status: 128)
--- stderr
fatal: transport 'https' not allowed
help: If you want to add the package regardless of the failed resolution, provide the `--frozen` flag to skip locking and syncing.
```
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
## Summary
Fix a suggestion in the docs on configs through environment variables,
which lists an option value that doesn't appear to exist.
The description implies that `unsafe-best-match` was intended here.
## Test Plan
Verified by providing `unsafe-any-match` as a parameter to `uv`. It
didn't error, but appeared to use the `first-index` strategy instead.
The value I changed it to behaves as described by the documentation.
## 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>
## 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>
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
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## 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>
Reworks how log verbosity flags work.
* `<no argument>` is the same, equivalent to `RUST_LOG=off`
* `-v` is the same, equivalent to `RUST_LOG=uv=debug`
* `-vv` is now equivalent to `RUST_LOG=uv=trace` (previously it only
enabled more log message context)
* `-vvv` is now equivalent to `RUST_LOG=trace` (previously it was
equivalent to `-vv`)
The "more context" that `-vv` had has been moved to an orthogonal
setting via an environment variable. Setting `UV_LOG_CONTEXT=1` will add
the extra context that `-vv` did.
In the future we may make these more granular as we try to use
`info!/warn!` more.
Fixes#1569
Revert #11601 for now
We run Python interpreter discovery with `-I` (#2500) which means these
environments variables are ignored when determining `sys.path`. Unless
we decide to remove the `-I` flag from the `sys.path` query, we
shouldn't release these changes to interpreter discovery caching.
We want to use `sys.path` for package discovery (#2500, #9849). For
that, we need to know the correct value of `sys.path`. `sys.path` is a
runtime-changeable value, which gets influenced from a lot of different
sources: Environment variables, CLI arguments, `.pth` files with
scripting, `sys.path.append()` at runtime, a distributor patching
Python, etc. We cannot capture them all accurately, especially since
it's possible to change `sys.path` mid-execution. Instead, we do a best
effort attempt at matching the user's expectation.
The assumption is that package installation generally happens in venv
site-packages, system/user site-packages (including pypy shipping
packages with std), and `PYTHONPATH`. Specifically, we reuse
`PYTHONPATH` as dedicated way for users to tell uv to include specific
directories in package discovery.
A common way to influence `sys.path` that is not using venvs is setting
`PYTHONPATH`. To support this we're capturing `PYTHONPATH` as part of
the cache invalidation, i.e. we refresh the interpreter metadata if it
changed. For completeness, we're also capturing other environment
variables documented as influencing `sys.path` or other fields in the
interpreter info.
This PR does not include reading registry values for `sys.path`
additions on Windows as documented in
https://docs.python.org/3.11/using/windows.html#finding-modules. It
notably also does not include parsing of python CLI arguments, we only
consider their environment variable versions for package installation
and listing. We could try parsing CLI flags in `uv run python`, but we'd
still miss them when Python is launched indirectly through a script, and
it's more consistent to only consider uv's own arguments and environment
variables, similar to uv's behavior in other places.
## Summary
When tests are run downstream, the `COLUMNS` environment variable is
used to force fixed output width and avoid test failures due to
different terminal widths. However, this occasionally causes test
regressions when other tests rely on different output width. Use the
same `COLUMNS` value in CI to ensure consistent output and catch any
regressions.
## Test Plan
It wasn't, it's supposed to be tested by the CI :-).
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
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## Summary
Handle potential infinite recursion if `uv run` recursively invokes `uv
run`. This can happen if the shebang line of a script includes `uv run`,
but does not pass `--script`.
Handled by adding a new environment variable `UV_RUN_RECURSION_DEPTH`,
which contains a counter of the number of times that uv run has been
recursively invoked. If unset, it defaults to zero, and each time uv run
starts a subprocess we increment the counter, erroring if the value is
greater than a configurable (but not currently exposed or documented)
threshold.
Closes https://github.com/astral-sh/uv/issues/11220.
## Test Plan
I've added a snapshot test to `uv/crates/uv/tests/it/run` that tests the
end-to-end recursion detection flow. I've currently made it a unix-only
test because I'm not sure offhand how uv run will interact with shebang
lines on windows.
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
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## 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>
When stderr is not a tty, we currently don't show any messages for build
or large downloads, since indicatif is hidden. We can improve this by
showing a message for:
* Starting and finishing a large download (>1MB)
* Starting and finishing a build
Downloads are limited to 1MB or unknown size to keep the logs concise
and not scroll the entire terminal away for a download that finishes
almost immediately.
These messages are not captured in the tests since their order is
non-deterministic (downloads and builds race to finish).
There are no "tick" messages for large downloads yet, we could e.g. show
an update on runnning downloads every n seconds.
Part of #11121
**Test Plan**
```
$ uv venv && FORCE_COLOR=1 cargo run -q pip install numpy --no-binary :all: --no-cache 2>&1 | tee a.txt
Using CPython 3.13.0
Creating virtual environment at: .venv
Activate with: source .venv/bin/activate
Resolved 1 package in 221ms
Building numpy==2.2.2
Built numpy==2.2.2
Prepared 1 package in 2m 34s
Installed 1 package in 6ms
+ numpy==2.2.2
```
```
$ uv venv && FORCE_COLOR=1 cargo run -q pip install torch --no-cache 2>&1 | tee b.txt
Using CPython 3.13.0
Creating virtual environment at: .venv
Activate with: source .venv/bin/activate
Resolved 24 packages in 648ms
Downloading setuptools (1.2MiB)
Downloading nvidia-cuda-cupti-cu12 (13.2MiB)
Downloading torch (731.1MiB)
Downloading nvidia-nvjitlink-cu12 (20.1MiB)
Downloading nvidia-cufft-cu12 (201.7MiB)
Downloading nvidia-cuda-nvrtc-cu12 (23.5MiB)
Downloading nvidia-curand-cu12 (53.7MiB)
Downloading nvidia-nccl-cu12 (179.9MiB)
Downloading nvidia-cudnn-cu12 (634.0MiB)
Downloading nvidia-cublas-cu12 (346.6MiB)
Downloading sympy (5.9MiB)
Downloading nvidia-cusparse-cu12 (197.8MiB)
Downloading nvidia-cusparselt-cu12 (143.1MiB)
Downloading networkx (1.6MiB)
Downloading nvidia-cusolver-cu12 (122.0MiB)
Downloading triton (241.4MiB)
Downloaded setuptools
Downloaded networkx
Downloaded sympy
Downloaded nvidia-cuda-cupti-cu12
Downloaded nvidia-nvjitlink-cu12
Downloaded nvidia-cuda-nvrtc-cu12
Downloaded nvidia-curand-cu12
[...]
```
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## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
## Test Plan
<!-- How was it tested? -->
## Summary
Closes#3312.
This PR adds Git LFS support to the `uv-git` crate by using the
`git-lfs` CLI to fetch required LFS objects for a revision following the
call to `git fetch`.
The LFS fetch step is disabled by default and only enabled if the
environment variable `UV_GIT_LFS` is set.
When enabled, the LFS fetch step is run for all repositories regardless
of whether they have associated LFS objects. The step is skipped if the
`git-lfs` CLI tool isn't installed.
## Test Plan
I verified that the minimal example in the linked issue passes, i.e.
this command now succeeds:
```sh
UV_GIT_LFS=1 uv pip install git+https://github.com/grebnetiew/lfs-py.git
```
I also verified that non-LFS repositories still work, with or without
`git-lfs` installed.
### To Replicate
Attempt to use uv to install a Git dependency that contains LFS objects
(e.g. `uv pip install git+https://github.com/grebnetiew/lfs-py.git`).
This should fail with a smudge filter error.
Re-run the same command with the added environment variable
`UV_GIT_LFS=1`. The install should now succeed.
## Potential Changes / Improvements
~With this change LFS objects in a given revision will always be
downloaded if the user has Git LFS installed, which may not always be
desired behavior. It might be helpful to add a field to the `uv`
settings and/or an environment variable so that the LFS step can be
disabled if needed.~
Enabling/disabled via environment variable has now been implemented.
---------
Co-authored-by: Sydney Duckworth <sydduckworth@users.noreply.github.com>
Co-authored-by: Zanie Blue <contact@zanie.dev>
## Summary
This PR makes the behavior in https://github.com/astral-sh/uv/pull/9827
the default: we try to select the latest supported package version for
each supported Python version, but we still optimize for choosing fewer
versions when stratifying by platform.
However, you can opt out with `--fork-strategy fewest`.
Closes https://github.com/astral-sh/uv/issues/7190.
When publishing, we currently ask the user to set `--publish-url` to the
upload URL and `--check-url` to the simple index URL, or the equivalent
configuration keys. But that's redundant with the `[[tool.uv.index]]`
declaration. Instead, we extend `[[tool.uv.index]]` with a `publish-url`
entry and allow passing `uv publish --index <name>`.
`uv publish --index <name>` requires the `pyproject.toml` to be present
when publishing, unlike using `--publish-url ... --check-url ...` which
can be used e.g. in CI without a checkout step. `--index` also always
uses the check URL feature to aid upload consistency.
The documentation tries to explain both approaches together, which
overlap for the check URL feature.
Fixes#8864
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
## Summary
This change introduces the `UV_NO_INSTALLER_METADATA` environment
variable
as a way to opt out of the extra installer metadata files that `uv` is
creating.
This is important to achieve reproducible builds in distribution
packaging, allowing to replace usage of
[installer](https://pypi.org/project/installer) with `uv pip install`.
At the time of writing these files are:
- `uv_cache.json`
Contains timestamps which are non-reproducible.
These hashes also leak in to the `RECORD` file.
- `direct_url.json`
Contains the path to the installed wheel.
While not non-reproducible it's not required for distribution packaging.
- `INSTALLER`
Again, not non-reproducible, but of no value in distribution packaging.
## Test Plan
Automated test added.
---------
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
## Summary
Aligns the description of `UV_NO_PROGRESS` with other env vars that also
have a related flag.
`--no-progress` is a "global option" and exists in every command.
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
- Adds a collapsible section for the project concept
- Splits the project concept document into several child documents.
- Moves the workspace and dependencies documents to under the project
section
- Adds a mkdocs plugin for redirects, so links to the moved documents
still work
I attempted to make the minimum required changes to the contents of the
documents here. There is a lot of room for improvement on the content of
each new child document. For review purposes, I want to do that work
separately. I'd prefer if the review focused on this structure and idea
rather than the content of the files.
I expect to do this to other documentation pages that would otherwise be
very nested.
The project concept landing page and nav (collapsed by default) looks
like this now:
<img width="1507" alt="Screenshot 2024-11-14 at 11 28 45 AM"
src="https://github.com/user-attachments/assets/88288b09-8463-49d4-84ba-ee27144b62a5">
Fixes#9164
Using clap's `default_value_t` makes the `flag` function unhappy, so
just set the default when we unwrap. Tested with no flags,
`--verify-hashes`, `--no-verify-hashes` and setting in uv.toml
---------
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
## Summary
This PR pulls in https://github.com/astral-sh/uv/pull/8263 and
https://github.com/astral-sh/uv/pull/8463, which were originally merged
into the v0.5 tracking branch but can now be committed separately, as
we've made `.env` loading opt-in.
In summary:
- `.env` loading is now opt-in (`--env-file .env`).
- `.env` remains supported on `uv run`, so it's meant for providing
environment variables to the run command, rather than to uv itself.
---------
Co-authored-by: Eduardo González Vaquero <47718648+edugzlez@users.noreply.github.com>
## Summary
* Env docs now support anchors, which allows sending a link to someone
with a direct reference to an env var or cross-reference them in the
docs.
* Marked additional env vars as hidden from the docs due to their
internal use
* Updates some tests still using literals to use the static env vars
## Test Plan
<img width="1370" alt="env_var_anchors"
src="https://github.com/user-attachments/assets/52ae1caa-5199-4798-9eb5-81b8f5b57c24">
## Summary
Resolves#8417
I've just begun learning procedural macros, so this PR is more of a
proof of concept. It's still a work in progress, and I welcome any
assistance or feedback.
