Struct SourcedDependencyGroups 

pub struct SourcedDependencyGroups {
    pub name: Option<PackageName>,
    pub dependency_groups: BTreeMap<GroupName, Box<[Requirement]>>,
}

Like crate::RequiresDist but only supporting dependency-groups.

PEP 735 says:

A pyproject.toml file with only [dependency-groups] and no other tables is valid.

This is a special carveout to enable users to adopt dependency-groups without having to learn about projects. It is supported by pip install --group, and thus interfaces like uv pip install --group must also support it for interop and conformance.

On paper this is trivial to support because dependency-groups are so self-contained that they’re basically a requirements.txt embedded within a pyproject.toml, so it’s fine to just grab that section and handle it independently.

However several uv extensions make this complicated, notably, as of this writing:

• tool.uv.sources
• tool.uv.index

These fields may also be present in the pyproject.toml, and, critically, may be defined and inherited in a parent workspace pyproject.toml.

Therefore, we need to gracefully degrade from a full workspacey situation all the way down to one of these stub pyproject.tomls the PEP defines. This is why we avoid going through RequiresDist – we don’t want to muddy up the “compile a package” logic with support for non-project/workspace pyproject.tomls, and we don’t want to muddy this logic up with setuptools fallback modes that RequiresDist wants.

(We used to shove this feature into that path, and then we would see there’s no metadata and try to run setuptools to try to desperately find any metadata, and then error out.)

Fields

name: Option<PackageName>

dependency_groups: BTreeMap<GroupName, Box<[Requirement]>>

Implementations

impl SourcedDependencyGroups

pub async fn from_virtual_project( pyproject_path: &Path, git_member: Option<&GitWorkspaceMember<'_>>, locations: &IndexLocations, source_strategy: SourceStrategy, cache: &WorkspaceCache, credentials_cache: &CredentialsCache, ) -> Result<Self, MetadataError>

Lower by considering tool.uv in pyproject.toml if present, used for Git and directory dependencies.

Trait Implementations

impl Clone for SourcedDependencyGroups

fn clone(&self) -> SourcedDependencyGroups

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SourcedDependencyGroups

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.