pip-tools

pip-tools is a set of command-line tools, primarily `pip-compile` and `pip-sync`, designed to help manage Python project dependencies by pinning them to exact versions. It aims to ensure deterministic and reproducible builds by generating fully-pinned `requirements.txt` files from abstract `requirements.in` files (or `pyproject.toml`). The library is currently at version 7.5.3 and actively maintained, though its release cadence can sometimes be irregular, with recent updates catching up after periods of inactivity.