astral-sh/uv

Ensure all tests which install managed Python versions use the cache

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#16,721 opened on Nov 13, 2025

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 (2 comments) (0 reactions) (0 assignees)Rust (3,111 forks)batch import
help wantedinternaltesting

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Description

We have TestContext::with_python_download_cache which improves the performance of tests which download a managed Python version, but I'm not sure we use it everywhere. There are only a couple cases where we explicitly don't want to use this. Maybe we should have with_managed_python_dirs turn this on and have without_python_download_cache instead for the opt-out cases?

Contributor guide

Research direction
Search for test functions that download managed Python versions and check if they use `TestContext::with python download cache`. Add the cache call where missing.
Tech stack
rust
Domain
backendtesting
Issue type
Refactor
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
1
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Under 1 hour
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
RustTesting
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
80