uv is an extremely fast Python package and project manager, written in Rust.| docs.astral.sh
Optional static typing for Python. Contribute to python/mypy development by creating an account on GitHub.| GitHub
execute binaries from Python packages in isolated environments| pipx.pypa.io
An extremely fast Python linter and code formatter, written in Rust.| docs.astral.sh
The main branch is currently the future Python 3.15, and is the only branch that accepts new features. The latest release for each Python version can be found on the download page.(See below for a ...| Python Developer's Guide
Source code: Lib/unittest/__init__.py(If you are already familiar with the basic concepts of testing, you might want to skip to the list of assert methods.) The unittest unit testing framework was ...| Python documentation