uv: An extremely fast Python package and project manager, written in Rust

uv and ruff are a great counterexample to all those people who say "never reinvent the wheel". Don't ever do it just for the sake of doing it, but if you have focused goals you can sometimes produce a product that's an order of magnitude better.

The history of Python package management is clear that everyone thinks they can do a better job than the status quo.

uv is purely a performance improvement, it changes nothing about the mechanics of Python environment management or packaging.

The improvements came from lots of work from the entire python build system ecosystem and consensus building.

Actually not true. One of the main differences with uv is you don't have to think about venvs any more. There's a talk about it from one of the authors at a recent PyCon here: https://www.youtube.com/watch?v=CV8KRvWKYDw (not the same talk I linked elsewhere in the thread).

How do you think uv works?

It creates a venv. Note were talking about the concept of a virtual environment here, PEP 405, not the Python module "venv".

The implementation details don't matter. uv might follow PEP 405 but it could work just as well without doing so. The point is that it doesn't give you the bunch of extra footguns that any other Python package management does.

It matters immensely that it follows PEP 405, it makes uv the implementation detail. You can swap out uv for any other project management tool or build frontend and change nothing needs to change about the development environment.

This is the entire purpose of the standards.

> You can swap out uv for any other project management tool or build frontend and change nothing needs to change about the development environment.

> This is the entire purpose of the standards.

That seems to amount to saying that the purpose of the standards is to prevent progress and ensure that the mistakes of early Python project management tools are preserved forever. (Which would explain some things about the last ~25 years of Python project management I guess). The parts of uv that follow standards aren't the parts that people are excited about.