senro線路

pyproject: Python

One unit per Python distribution. Does not compute an affected set, deliberately: fan out over everything.

import "github.com/xavidop/senro/unit/pyproject"

verify.Expand("test", pyproject.Packages()).
	MaxParallel(8).
	Template(func(u senro.Unit) *senro.StepBuilder {
		return senro.NewStep(exec.Command("uv", "run", "pytest")).WorkDir(u.Dir)
	})

What counts as a unit

A directory whose pyproject.toml names a distribution (PEP 621’s [project] or Poetry’s [tool.poetry]), or which holds a setup.py or setup.cfg.

Name is the distribution name.

  • A nameless pyproject.toml (a virtual uv root, a ruff-only config) is not a unit.
  • [tool.uv.workspace] exclude is honoured.
  • A virtual environment directory is not searched.
  • A setup.py-only distribution is named after its directory.
  • No distribution anywhere is an error, not an empty graph.

Why Affected is refused

Adding .Affected(...) over this graph fails at build time, the same way it does over glob. The manifests do carry dependency declarations. In Python, a declaration is just not what makes an import work:

  • uv sync and pip install -e make every workspace member importable, so a package can import acme_core with nothing in its own pyproject.toml, and it works for years undetected.
  • A src layout on PYTHONPATH, a conftest.py, an entry-point pytest plugin, and an import inside a function are four more real dependencies with nothing static to read.
  • dynamic = ["dependencies"] says outright that the dependencies are not in the manifest.
  • uv, Poetry, Hatch and setuptools disagree about where an intra-repo dependency is even written.

Any one of those is a missing edge, and a missing edge is a green build for a broken tree.

Fanning out over everything is still worth having. Twenty services testing in parallel under a MaxParallel cap, each cached independently, is most of the win.

If your repository genuinely declares and enforces every dependency, write a graph that knows it.

Where to go next