astral-sh/uv

uv python list doesn't show all possible combinations of python installation

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#4,988 opened on Jul 11, 2024

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 (3 comments) (1 reaction) (0 assignees)Rust (84,934 stars) (3,111 forks)batch import
clihelp wanted

Description

Hi! When running (today installed) uv to install python locally and discover some, it doesn't show all possible options for current architecture:

$ uv python list
warning: `uv python list` is experimental and may change without warning.
cpython-3.12.3-linux-x86_64-musl     <download available>
cpython-3.12.3-linux-x86_64-gnu      /usr/bin/python3
cpython-3.12.3-linux-x86_64-gnu      /bin/python3
cpython-3.11.9-linux-x86_64-musl     <download available>
cpython-3.10.14-linux-x86_64-musl    <download available>
cpython-3.9.19-linux-x86_64-musl     <download available>
cpython-3.8.19-linux-x86_64-musl     <download available>
cpython-3.7.9-linux-x86_64-musl      <download available>

But, when you try by guess-work to install cpython-3.11.9-linux-x86_64-gnu, it works:

$ uv python install cpython-3.11.9-linux-x86_64-gnu
warning: `uv python install` is experimental and may change without warning.
Searching for Python versions matching: cpython-3.11.9-linux-x86_64-gnu
Installed Python 3.11.9 to: /home/khazakar/.local/share/uv/python/cpython-3.11.9-linux-x86_64-gnu
Installed 1 version in 3.44s

I'm running Ubuntu 24.04, uv version 0.2.24, x86_64 arch.

Contributor guide

Tech stack
rustpython
Domain
clitooling
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
Rust knowledgeuv codebase familiarity
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60
Research direction
Investigate the `python list` command implementation in the uv codebase, specifically how it queries available Python versions and why only musl variants are shown for versions like 3.11.9 and earlier. Check the versions.json or download URL generation logic to ensure gnu variants are included. The user successfully installed a gnu version manually, so the issue is likely in the listing logic.