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This repository has been archived by the owner on Aug 3, 2022. It is now read-only.


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Build Status Checked with mypy

An extensible Dependency Resolver, written in Python. Intended for bringing dependency resolution to pip.


The motivation for this project is to make it feasible and easy for user-facing package managers written in Python to do proper dependency resolution.

This project has grown out of a GSoC Project, which aimed to bring proper dependency resolution to pip. Once this package is ready, work will be done to make pip use this instead of its home-grown solution.


This project uses nox extensively.

  • Documentation is built with nox -s docs.
  • Linting and MyPy checking can be done using nox -s lint
  • Tests are run with nox -s test.

Currently, the documentation of this project is non-existent but this shall be rectified once the actual internal details of the package stabilize.

Relationship with PyPA

This project (or the equivalent resolvelib) will move into the PyPA Umberella once it matures.