python install_error ai_generated partial

error: command '/usr/bin/gcc' failed with exit code 1 Cython.Compiler.Errors.CompileError: foo/_bar.pyx

ID: python/setuptools-cython-build-failure

Also available as: JSON · Markdown · 中文
80%Fix Rate
83%Confidence
0Evidence
2024-09-25First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3.8 active — — —
3.9 active — — —
3.10 active — — —
3.11 active — — —
3.12 active — — —

Root Cause

A Cython extension failed to compile because of a missing C header, an incompatible compiler, or a Cython version mismatch with the .pyx source.

generic

中文

Cython 扩展编译失败，原因是缺少 C 头文件、编译器不兼容，或 Cython 版本与 .pyx 源码不匹配。

Workarounds

  1. 80% success 
    Install build prerequisites (e.g. `sudo apt-get install python3-dev libfoo-dev`) and pin a matching Cython: `pip install 'cython<3'` or `'cython>=3'` per the project's docs.
  2. 85% success 
    Prefer a prebuilt wheel: `pip install --only-binary=:all: <pkg>` to avoid compiling at all.

Dead Ends

Common approaches that don't work:

  1. 90% fail

    The compiler error is deterministic.

  2. 80% fail

    Optimization level is not the cause of a CompileError.