python install_error ai_generated true

错误：命令出错，退出状态为 1：python setup.py egg_info ... LookupError：setuptools-scm 无法为 /tmp/pip-req-build-xxxx 检测版本。

ERROR: Command errored out with exit status 1: python setup.py egg_info ... LookupError: setuptools-scm was unable to detect version for /tmp/pip-req-build-xxxx.

ID: python/pip-install-from-git-missing-setuptools-scm

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80%修复率
85%置信度
0证据数
2024-09-12首次发现

版本兼容性

版本状态引入弃用备注
3.8 active — — —
3.9 active — — —
3.10 active — — —
3.11 active — — —
3.12 active — — —

根因分析

安装使用了 setuptools_scm 的 git 检出，但 pip 构建沙箱中缺少 .git 目录，因此无法解析版本标签。

English

Installing a git checkout that uses setuptools_scm, but the .git directory is missing from the pip build sandbox, so no version tag can be resolved.

generic

解决方案

  1. 90% 成功率 
    Install from a built sdist/wheel instead: `python -m build && pip install dist/pkg-*.whl`.
  2. 88% 成功率 
    If installing from a git URL, ensure pip can fetch tags: `pip install "git+https://github.com/org/[email protected]"` (explicit tag bypasses scm detection).

无效尝试

常见但无效的做法:

  1. 80% 失败

    Still uses the same extracted source tree without .git; version detection continues to fail.

  2. 70% 失败

    Produces a bogus 0.0.0 version that breaks dependency resolution and downstream pins.