Package Management

Build Backends

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The historical and still most widely used pyproject build backend.
pypa/github.com/pypa/setuptools / /933,544,112 downloads/month
Modern, extensible build backend from the hatch project.
pypa/github.com/pypa/hatch / /311,366,391 downloads/month
Poetry's PEP 517 build backend, usable without Poetry itself.
python-poetry/github.com/python-poetry/poetry-core / /84,680,857 downloads/month
uv's fast, minimal build backend for pure-Python projects.
astral-sh/github.com/astral-sh/uv / /14,987,441 downloads/month

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