# ImportError: uvloop requires Python 3.8 or higher

- **ID:** `python/uvicorn-loop-uvloop-install-failed`
- **Domain:** python
- **Category:** install_error
- **Verification:** ai_generated
- **Fix Rate:** 80%

## Root Cause

uvloop wheel is missing for the current Python version or platform, or a stale uvloop build is being imported.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| 3.9+ | active | — | — |
| 3.10+ | active | — | — |
| 3.11+ | active | — | — |
| 3.12+ | active | — | — |

## Workarounds

1. **** (95% success)
   ```
   uvicorn app:app --loop asyncio
   ```
2. **** (85% success)
   ```
   python -c 'import sys; print(sys.version)'
pip install --only-binary=:all: 'uvloop>=0.19'
   ```

## Dead Ends

- **** — May install a wheel built for a different Python ABI; import still fails. (60% fail)
- **** — Auto still prefers uvloop on Linux when installed; the import error persists. (70% fail)