python install_error ai_generated partial

错误：无法安装 numpy==1.26.4 和 Cython>=3.0，因为这些包版本的依赖项存在冲突。 冲突由以下原因引起： 用户请求 numpy==1.26.4 Cython 3.0.10 依赖于 numpy>=2.0

ERROR: Cannot install numpy==1.26.4 and Cython>=3.0 because these package versions have conflicting dependencies. The conflict is caused by: The user requested numpy==1.26.4 Cython 3.0.10 depends on numpy>=2.0

ID: python/pip-build-deps-conflict-cython-numpy

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80%修复率
85%置信度
0证据数
2024-10-02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

构建时依赖和运行时固定版本被混在同一个 requirements 文件中，产生了无法满足的依赖图。

English

Build-time dependencies and runtime pins were mixed in the same requirements file, creating an unsatisfiable graph.

generic

解决方案

  1. 92% 成功率 
    [build-system]
requires = ["setuptools>=68", "wheel", "Cython>=3.0", "numpy>=2.0"]
build-backend = "setuptools.build_meta"
# then
pip install .
  2. 85% 成功率 
    echo 'numpy==1.26.4' > constraints.txt
pip install -c constraints.txt Cython>=3.0

无效尝试

常见但无效的做法:

  1. 80% 失败

    Skips dependency installation entirely, leaving the environment broken at runtime.

  2. 70% 失败

    Legacy resolver may install an inconsistent set silently, causing runtime errors.

  3. 50% 失败

    May pull numpy 2.x, incompatible with other pinned packages in the project.