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Implement Dependency.to_requirements_string #861

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Merged
nathanjmcdougall merged 2 commits into from
Jul 16, 2025
Merged

Implement Dependency.to_requirements_string #861

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96e63bb
Implement `Dependency.to_requirements_string`
nathanjmcdougall Jul 16, 2025
2d2768b
Use `Dependency.to_requirements_string()` in `Dependency.__str__`
nathanjmcdougall Jul 16, 2025
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8 changes: 6 additions & 2 deletions src/usethis/_integrations/uv/deps.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,12 +17,16 @@ class Dependency(BaseModel):
extras: frozenset[str] = frozenset()

def __str__(self) -> str:
extras = sorted(self.extras or set())
return self.name + "".join(f"[{extra}]" for extra in extras)
return self.to_requirements_string()

def __hash__(self) -> int:
return hash((self.__class__.__name__, self.name, self.extras))

def to_requirements_string(self) -> str:
"""Convert the dependency to a requirements string."""
extras_str = f"[{','.join(sorted(self.extras))}]" if self.extras else ""
return f"{self.name}{extras_str}"


def get_project_deps() -> list[Dependency]:
"""Get all project dependencies.
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15 changes: 15 additions & 0 deletions tests/usethis/_integrations/uv/test_deps.py
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Expand Up @@ -28,6 +28,21 @@
from usethis._test import change_cwd


class TestDependency:
class TestToRequirementsString:
def test_no_extras(self):
dep = Dependency(name="requests")
assert dep.to_requirements_string() == "requests"

def test_single_extra(self):
dep = Dependency(name="requests", extras=frozenset({"security"}))
assert dep.to_requirements_string() == "requests[security]"

def test_multiple_extras(self):
dep = Dependency(name="requests", extras=frozenset({"security", "socks"}))
assert dep.to_requirements_string() == "requests[security,socks]"


class TestGetProjectDeps:
def test_no_pyproject(self, tmp_path: Path):
# Arrange - No pyproject.toml file exists
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