uv

uv is a Python workflow CLI that combines project management, package installation, virtual environments, tool execution, and Python version management. It covers both high-level pyproject.toml workflows and lower-level pip-style environment commands from one shell surface.

• Create Python projects, add or remove dependencies, lock them, sync environments, and run commands against the managed project environment.
• Install Python versions and invoke Python-packaged CLIs either ephemerally with uvx or as persistent user-level tools.
• Inspect packages, export lock data, build distributions, and publish packages without switching between separate Python workflow tools.

• One non-interactive-first CLI spans setup, inspection, and mutation tasks across Python repos, environments, and toolchains, so agents do not need to juggle multiple package managers.
• Structured output is available on inspect surfaces such as uv pip list --format json, uv version --output-format json, and source-defined JSON modes for python list and auth helper flows.
• Some broader JSON output surfaces are still tied to the json-output preview feature, and commands that touch credentials or existing directories may still prompt unless you pass explicit flags or preconfigure state.

• It is specific to Python packaging and interpreter workflows, so it is a poor fit outside Python projects or Python-packaged tools.
• Commands that publish packages, download interpreters, or access package indexes depend on network access and can mutate local environments, lockfiles, or remote package state.