The uv build backend has gone through some feedback cycles, we expect no
more major configuration changes, and we're ready to take the next step:
The uv build backend in stable.
This PR stabilizes:
* Using `uv_build` as build backend
* The documentation of the uv build backend
* The direct build fast path, where uv doesn't use PEP 517 if you're
using `uv_build` in a compatible version.
* `uv build --list`, which is limited to `uv_build`.
It does not:
* Make `uv_build` the default on `uv init`
* Make `--package` the default on `uv init`
This allows you to specify requires-python on individual dependency-groups,
with the intended usecase being "oh my dev-dependencies have a higher
requires-python than my actual project".
This includes a large driveby move of the RequiresPython type to
uv-distribution-types to allow us to generate the appropriate markers at
this point in the code. It also migrates RequiresPython from
pubgrub::Range to version_ranges::Ranges, and makes several pub(crate)
items pub, as it's no longer defined in uv_resolver.
Fixes#11606
Unlike regular packages, specifying all `__init__.py` directories for a
namespace package would be very verbose There is e.g.
https://github.com/python-poetry/poetry/tree/main/src/poetry, which has
18 modules, or https://github.com/googleapis/api-common-protos which is
inconsistently nested. For both the Google Cloud SDK, there are both
packages with a single module and those with complex structures, with
many having multiple modules due to versioning through `<module>_v1`
versioning. The Azure SDK seems to use one module per package (it's not
explicitly documented but seems to follow from the process in
https://azure.github.io/azure-sdk/python_design.html#azure-sdk-distribution-packages
and
ccb0e03a3d/doc/dev/packaging.md).
For simplicity with complex projects, we add a `namespace = true` switch
which disabled checking for an `__init__.py`. We only check that there's
no `<module_root>/<module_name>/__init__.py` and otherwise add the whole
`<module_root>/<module_name>` folder. This comes at the cost of
`namespace = true` effectively creating an opt-out from our usual checks
that allows creating an almost entirely arbitrary package.
For simple projects with only a single module, the module name can be
dotted to point to the target module, so the build still gets checked:
```toml
[tool.uv.build-backend]
module-name = "poetry.core"
```
## Alternatives
### Declare all packages
We could make `module-name` a list and allow or require declaring all
packages:
```toml
[tool.uv.build-backend]
module-name = ["cloud_sdk.service.storage", "cloud_sdk.service.storage_v1", "cloud_sdk.billing.storage"]
```
Or for Poetry:
```toml
[tool.uv.build-backend]
module-name = [
"poetry.config",
"poetry.console",
"poetry.inspection",
"poetry.installation",
"poetry.json",
"poetry.layouts",
"poetry.masonry",
"poetry.mixology",
"poetry.packages",
"poetry.plugins",
"poetry.publishing",
"poetry.puzzle",
"poetry.pyproject",
"poetry.repositories",
"poetry.toml",
"poetry.utils",
"poetry.vcs",
"poetry.version"
]
```
### Support multiple namespaces
We could also allow namespace packages with multiple root level module:
```toml
[tool.uv.build-backend]
module-name = ["cloud_sdk.my_ext", "local_sdk.my_ext"]
```
For lack of use cases, we delegate this to creating a workspace with one
package per module.
## Implementation
Due to the more complex options for the module name, I'm moving
verification on deserialization later, dropping the source span we'd get
from serde. We also don't show similarly named directories anymore.
---------
Co-authored-by: Andrew Gallant <andrew@astral.sh>
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## Summary
I follow the advices from the IDE spell checker and grammar checker, fix
some typos, and improve the docs.
By default, uv uses only a lower bound in `uv add`, which avoids
dependency conflicts due to upper bounds. With this PR, this cna be
changed by setting a different bound kind. The bound kind can be
configured in `uv.toml`, as a user preference, in `pyproject.toml`, as a
project preference, or on the CLI, when adding a specific project.
We add two options that add an upper bound on the constraint, one for
SemVer (`>=1.2.3,<2.0.0`, dubbed "major", modeled after the SemVer
caret) and another one for dependencies that make breaking changes in
minor version (`>=1.2.3,<1.3.0`, dubbed "minor", modeled after the
SemVer tilde). Intuitively, the major option bumps the most significant
version component, while the minor option bumps the second most
significant version component. There is also an exact bounds option
(`==1.2.3`), though generally we recommend setting a wider bound and
using the lockfile for pinning.
Versions can have leading zeroes, such as `0.1` or `0.0.1`. For a single
leading 0, we shift the the meaning of major and minor similar to cargo.
For two or more leading zeroes, the difference between major and minor
becomes inapplicable, instead both bump the most significant component:
- major: `0.1` -> `>=0.1,<0.2`
- major: `0.0.1` -> `>=0.0.1,<0.0.2`
- major: `0.0.1.1` -> `>=0.0.1.1,<0.0.2.0`
- major: `0.0.0.1` -> `>=0.0.0.1,<0.0.0.2`
- minor: `0.1` -> `>=0.1,<0.1.1`
- minor: `0.0.1` -> `>=0.0.1,<0.0.2`
- minor: `0.0.1.1` -> `>=0.0.1.1,<0.0.2.0`
- minor: `0.0.0.1` -> `>=0.0.0.1,<0.0.0.2`
For a consistent appearance, we try to preserve the number of components
in the upper bound. For example, adding a version `2.17` with the major
option is stored as `>=2.17,<3.0`. If a version uses three components
and is greater than 0, both bounds will also use three components
(SemVer versions always have three components). Of the top 100 PyPI
packages, 8 use a non-three-component version (docutils, idna, pycparser
and soupsieve with two components, packaging, pytz and tzdata with two
component, CalVer and trove-classifiers with four component CalVer).
Example `pyproject.toml` files with the top 100 packages: [`--bounds
major`](https://gist.github.com/konstin/0aaffa9ea53c4834c22759e8865409f4)
and [`--bounds
minor`](https://gist.github.com/konstin/e77f5e990a7efe8a3c8a97c5c5b76964).
While many projects follow version scheme that roughly or directly
matches the major or minor options, these compatibility ranges are
usually not applicable for the also popular CalVer versioning.
For pre-release versions, there are two framings we could take: One is
that pre-releases generally make no guarantees about compatibility
between them and are used to introduce breaking changes, so we should
pin them exactly. In many cases however, pre-release specifiers are used
because a project needs a bugfix or a feature that hasn't made it into a
stable release, or because a project is compatible with the next version
before a final version for that release is published. In those cases,
compatibility with other packages that depend on the same library is
more important, so the desired bound is the same as it would be for the
stable release, except with the lower bound lowered to include
pre-release.
The names of the bounds and the name of the flag is up for bikeshedding.
Currently, the option is call `tool.uv.bounds`, but we could also move
it under `tool.uv.edit.bounds`, where it would be the first/only entry.
Fixes#6783
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
Stubs packages are different in that their name ends with `-stubs`,
their module is `<module name>-stubs` (with a dash, not the generally
legal underscore) and their modules contain a `__init__.pyi` instead of
an `__init__.py`
(https://typing.python.org/en/latest/spec/distributing.html#stub-only-packages).
We add support in the uv build backend by detecting the `-stubs` suffix.
Fixes#13546
---------
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
## Summary
Part of #12838. Allow users to configure `python-downloads-json-url` in
`uv.toml` and not just from env.
I followed similar PR #8695, so same as there it's also available in the
CLI (I think maybe it's better not to be configurable from the CLI, but
since the mirror parameters are, I think it's better to do the same)
## Test Plan
<!-- How was it tested? -->
## 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
...
```
## Summary
This has come up a few times, so it seems worth addressing. If you
migrate from a flat layout to a `src` layout or vice versa, we now
invalidate the package metadata.
Closes https://github.com/astral-sh/uv/issues/12047
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
## Summary
Resolves#6913.
Add `tool.uv.build-constraint-dependencies` to pyproject.toml.
The changes are analogous to the constraint-dependencies feature
implemented in #5248.
Add documentation for `build-constraint-dependencies`
## Test Plan
Add tests for `uv lock`, `uv add`, `uv pip install` and `uv pip
compile`.
---------
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
## Summary
This PR revives https://github.com/astral-sh/uv/pull/10017, which might
be viable now that we _don't_ enforce any platforms by default.
The basic idea here is that users can mark certain platforms as required
(empty, by default). When resolving, we ensure that the specified
platforms have wheel coverage, backtracking if not.
For example, to require that we include a version of PyTorch that
supports Intel macOS:
```toml
[project]
name = "project"
version = "0.1.0"
requires-python = ">=3.11"
dependencies = ["torch>1.13"]
[tool.uv]
required-platforms = [
"sys_platform == 'darwin' and platform_machine == 'x86_64'"
]
```
Other than that, the forking is identical to past iterations of this PR.
This would give users a way to resolve the tail of issues in #9711, but
with manual opt-in to supporting specific platforms.
## 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>
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
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## Summary
Follow up to #8553
Clarifies that the `exclude-newer` setting must be a full timestamp and
not a date.
<!-- What's the purpose of the change? What does it do, and why? -->
## Test Plan
N/A
<!-- How was it tested? -->
## Summary
This follows Ruff's design exactly: you can provide a version specifier
(like `>=0.5`), and we'll enforce it at runtime.
Closes https://github.com/astral-sh/uv/issues/8605.
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## Summary
The `fork-strategy` default value was overlooked in #9887.
---------
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
## 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.
## Summary
Fixes#9027
Minor enhancement on top of #8531 that makes the CLI parameter
`--check-url` also available as the setting `check-url` in configuration
files.
## Test Plan
Updates existing tests to take the new setting into account.
Within publish command testing I didn't see existing tests covering
settings from toml files (instead of from CLI params), so I didn't add
anything of that sort.
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## Summary
Resolves#9333
This pull request introduces support for the `--no-extra` command-line
flag and the corresponding `no-extra` UV setting.
### Behavior
- When `--all-extras` is supplied, the specified extras in `--no-extra`
will be excluded from the installation.
- If `--all-extras` is not supplied, `--no-extra` has no effect and is
safely ignored.
## Test Plan
Since `ExtrasSpecification::from_args` and
`ExtrasSpecification::extra_names` are the most important parts in the
implementation, I added the following tests in the
`uv-configuration/src/extras.rs` module:
- **`test_no_extra_full`**: Verifies behavior when `no_extra` includes
the entire list of extras.
- **`test_no_extra_partial`**: Tests partial exclusion, ensuring only
specified extras are excluded.
- **`test_no_extra_empty`**: Confirms that no extras are excluded if
`no_extra` is empty.
- **`test_no_extra_excessive`**: Ensures the implementation ignores
`no_extra` values that don't match any available extras.
- **`test_no_extra_without_all_extras`**: Validates that `no_extra` has
no effect when `--all-extras` is not supplied.
- **`test_no_extra_without_package_extras`**: Confirms correct behavior
when no extras are available in the package.
- **`test_no_extra_duplicates`**: Verifies that duplicate entries in
`pkg_extras` or `no_extra` do not cause errors.
---------
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
- 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>
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## Summary
Adds python-install-mirror and pypy-install-mirror as keys for uv.toml,
and cli args for `uv python install`.
Could leave the cli args out if we think the env vars and configs are
sufficient.
Fixes#8186
<!-- What's the purpose of the change? What does it do, and why? -->
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
Not verifying the certificates of certain hosts should be supported for
all kinds of HTTPS connections, so we're making it a global option, just
like native tls. This fixes the remaining places using a client but were
not configuring allow insecure host.
Fixes#6983 (i think)
Closes#6983
---------
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
These settings can only be defined in `pyproject.toml`, since they're
project-centric, and not _configuration_.
Closes https://github.com/astral-sh/uv/issues/8539.
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
Co-authored-by: konsti <konstin@mailbox.org>
This PR adds support for `tool.uv.default-groups`, which defaults to
`["dev"]` for backwards-compatibility. These represent the groups we
sync by default.
## Summary
For example, in:
```toml
[tool.uv]
[[tool.uv.index]]
name = "pytorch"
url = "https://download.pytorch.org/whl/cu121"
```
We can just omit `[tool.uv]`.
## Summary
This PR adds a first-class API for defining registry indexes, beyond our
existing `--index-url` and `--extra-index-url` setup.
Specifically, you now define indexes like so in a `uv.toml` or
`pyproject.toml` file:
```toml
[[tool.uv.index]]
name = "pytorch"
url = "https://download.pytorch.org/whl/cu121"
```
You can also provide indexes via `--index` and `UV_INDEX`, and override
the default index with `--default-index` and `UV_DEFAULT_INDEX`.
### Index priority
Indexes are prioritized in the order in which they're defined, such that
the first-defined index has highest priority.
Indexes are also inherited from parent configuration (e.g., the
user-level `uv.toml`), but are placed after any indexes in the current
project, matching our semantics for other array-based configuration
values.
You can mix `--index` and `--default-index` with the legacy
`--index-url` and `--extra-index-url` settings; the latter two are
merely treated as unnamed `[[tool.uv.index]]` entries.
### Index pinning
If an index includes a name (which is optional), it can then be
referenced via `tool.uv.sources`:
```toml
[[tool.uv.index]]
name = "pytorch"
url = "https://download.pytorch.org/whl/cu121"
[tool.uv.sources]
torch = { index = "pytorch" }
```
If an index is marked as `explicit = true`, it can _only_ be used via
such references, and will never be searched implicitly:
```toml
[[tool.uv.index]]
name = "pytorch"
url = "https://download.pytorch.org/whl/cu121"
explicit = true
[tool.uv.sources]
torch = { index = "pytorch" }
```
Indexes defined outside of the current project (e.g., in the user-level
`uv.toml`) can _not_ be explicitly selected.
(As of now, we only support using a single index for a given
`tool.uv.sources` definition.)
### Default index
By default, we include PyPI as the default index. This remains true even
if the user defines a `[[tool.uv.index]]` -- PyPI is still used as a
fallback. You can mark an index as `default = true` to (1) disable the
use of PyPI, and (2) bump it to the bottom of the prioritized list, such
that it's used only if a package does not exist on a prior index:
```toml
[[tool.uv.index]]
name = "pytorch"
url = "https://download.pytorch.org/whl/cu121"
default = true
```
### Name reuse
If a name is reused, the higher-priority index with that name is used,
while the lower-priority indexes are ignored entirely.
For example, given:
```toml
[[tool.uv.index]]
name = "pytorch"
url = "https://download.pytorch.org/whl/cu121"
[[tool.uv.index]]
name = "pytorch"
url = "https://test.pypi.org/simple"
```
The `https://test.pypi.org/simple` index would be ignored entirely,
since it's lower-priority than `https://download.pytorch.org/whl/cu121`
but shares the same name.
Closes#171.
## Future work
- Users should be able to provide authentication for named indexes via
environment variables.
- `uv add` should automatically write `--index` entries to the
`pyproject.toml` file.
- Users should be able to provide multiple indexes for a given package,
stratified by platform:
```toml
[tool.uv.sources]
torch = [
{ index = "cpu", markers = "sys_platform == 'darwin'" },
{ index = "gpu", markers = "sys_platform != 'darwin'" },
]
```
- Users should be able to specify a proxy URL for a given index, to
avoid writing user-specific URLs to a lockfile:
```toml
[[tool.uv.index]]
name = "test"
url = "https://private.org/simple"
proxy = "http://<omitted>/pypi/simple"
```
