On my system, Pip takes noticeable time just to start up without ultimately doing anything of importance:
$ time pip install
ERROR: You must give at least one requirement to install (see "pip help install")
real 0m0.356s
user 0m0.322s
sys 0m0.036s
lol who is using pip so much that .36s of startup time matters to them? This, if presumably uv can do nothing slightly faster, is an absolutely meaningless benefit
>who is using pip so much that .36s of startup time matters to them?
https://danluu.com/productivity-velocity
https://danluu.com/input-lag/
In general, whenever you introduce a cache to make software faster (along any dimension), you have to think about cache invalidation and eviction. If your software is fast enough to not need caching, this problem goes away.
It's funny because superior caching is also highly relevant to uv's outperformance. (But invalidation/eviction isn't generally a real problem for a cache of installed packages; the cache can be cleaned up whenever and just rebuilt , and the cache has a separate entry per version of a library, where each version is immutable.)
Agreed -- the dream of caching is immutability.