# starlette.websockets.WebSocketDisconnect: code=1000, reason='Client disconnected'

- **ID:** `python/starlette-websocket-disconnect-message`
- **Domain:** python
- **Category:** runtime_error
- **Verification:** ai_generated
- **Fix Rate:** 80%

## Root Cause

WebSocket 客户端意外断开连接，服务器端未处理该异常。

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| 3.x | active | — | — |

## Workarounds

1. **** (98% success)
   ```
   @app.websocket('/ws')
async def ws_endpoint(websocket: WebSocket):
    await websocket.accept()
    try:
        while True:
            data = await websocket.receive_text()
    except WebSocketDisconnect:
        print('Client disconnected')
        # 清理资源
   ```

## Dead Ends

- **** — 如果不处理，服务器会崩溃或挂起 (60% fail)
- **** — 客户端已经断开，重新连接需要客户端主动发起 (90% fail)