python module_error ai_generated true

ModuleNotFoundError: No module named 'uvloop'

ID: python/uvloop-install-failure

Also available as: JSON · Markdown · 中文
80%Fix Rate
86%Confidence
0Evidence
2024-03-29First Seen

Version Compatibility

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

Root Cause

uvloop is not installed, or the wheel is unavailable for the current Python/platform combination (e.g. Windows, some Alpine builds), so import fails.

generic

中文

uvloop 未安装，或当前 Python/平台组合（如 Windows、某些 Alpine 构建）没有可用的 wheel，导致导入失败。

Workarounds

  1. 90% success 
    Install with platform guards:

pip install 'uvloop; sys_platform != "win32"'
  2. 85% success 
    Use winloop on Windows as a drop-in replacement:

if sys.platform == 'win32':
    import winloop as uvloop
  3. 80% success 
    On Alpine, install build deps: apk add --no-cache python3-dev gcc musl-dev libffi-dev && pip install uvloop

Dead Ends

Common approaches that don't work:

  1. 75% fail

    Still fails on Windows and Alpine musl; no wheel exists.

  2. 80% fail

    Pre-releases rarely add platform support for musl/Windows.

  3. 40% fail

    Works but silently falls back to the default loop; performance assumptions may be wrong.