python install_error ai_generated true

错误：无法为 mypkg 构建 wheel，而这是安装基于 pyproject.toml 的项目所必需的 × 为 mypkg 构建 wheel（pyproject.toml）未能成功运行。 │ 退出代码：1 ╰─> ModuleNotFoundError: 没有名为 'setuptools' 的模块

ERROR: Could not build wheels for mypkg, which is required to install pyproject.toml-based projects × Building wheel for mypkg (pyproject.toml) did not run successfully. │ exit code: 1 ╰─> ModuleNotFoundError: No module named 'setuptools'

ID: python/setuptools-missing-build-system-requires

其他格式: JSON · Markdown 中文 · English
80%修复率
88%置信度
0证据数
2024-03-28首次发现

版本兼容性

版本状态引入弃用备注
3.x active — — —

根因分析

项目的 pyproject.toml 声明了 [build-system] 表，但其 'requires' 中缺少 setuptools（或声明为空列表），因此隔离的构建环境缺少该后端。

English

The project's pyproject.toml declares a [build-system] table whose 'requires' omits setuptools (or declares an empty list), so the isolated build env lacks the backend.

generic

解决方案

  1. 97% 成功率 
    [build-system]
requires = ["setuptools>=68", "wheel"]
build-backend = "setuptools.build_meta"
  2. 90% 成功率 
    python -m pip install 'setuptools>=68' wheel
python -m pip install --no-build-isolation mypkg

无效尝试

常见但无效的做法:

  1. 85% 失败

    Build isolation creates a fresh env; the current venv's setuptools is not visible.

  2. 75% 失败

    Then the build uses the current Python's setuptools, which may be absent or too old.