This document summarizes several tools for Python dependency management: pip-tools, Pipenv, poetry, and hatch. It discusses how each tool handles specifying dependencies, installing packages, creating reproducible environments, and publishing packages. While pip-tools and Pipenv focus on dependencies, poetry aims to be a single tool for all project tasks including building and publishing. Hatch simplifies the development workflow by wrapping multiple common tools. The document concludes that the best tool depends on whether a library or application is being built, and which fits the user's infrastructure.