alt Hacker NewsLinting and type checking are very CPU intensive tasks so I would excuse anyone implementing those types of tools in $LANG where using all CPU juice matters.
I can't help but think uv is fast not because it's written in Rust but because it's a fast reimplementation. Dependency solving in the average Python project is hardly computationally expensive, it's just downloading and unpacking packages with a "global" package cache. I don't see why uv couldn't have been implemented in Python and be 95% as fast.
Edit: Except implementing uv in Python requires shipping a Python interpreter kinda defeating some of it's purpose of being a package manager able to install Python as well.
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You also have to factor in startup time and concurrency. Caching an SAT solvers can't get python to 95% of uv.
Nope, this is totally an area where using Rust makes sense and is just _fast_. The fact that Rust has concurrency primitives that are easy to use helps tons too.