https://docs.astral.sh/uv/

A single tool to replace pip, pip-tools, pipx, poetry, pyenv, twine, virtualenv, and more.

use a specific python version in the current directory

uv python install 3.10 3.11 3.12
uv python pin 3.11

install cli tool

uv tool install ruff
ruff --version

run cli tool without installing

uvx pycowsay 'hello world!'