python install_error ai_generated true

ImportError: cannot import name 'uvloop' from partially initialized module 'uvloop' (most likely due to a circular import)

ID: python/starlette-uvloop-importerror

Also available as: JSON · Markdown · 中文
80%Fix Rate
82%Confidence
0Evidence
2024-08-22First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3.x active — — —

Root Cause

uvloop is not installed or fails to build; uvicorn falls back and the import error surfaces.

generic

中文

uvloop 未安装或构建失败；uvicorn 回退时暴露出导入错误。

Workarounds

  1. 93% success 
    pip install 'uvicorn[standard]'
  2. 90% success 
    uvicorn app:app --loop asyncio

Dead Ends

Common approaches that don't work:

  1. 85% fail

    Does not fix the missing native dependency.

  2. 80% fail

    Old wheels may not support the interpreter.