From 1d702103f148b0739f1e75e12b603efbdec1d50c Mon Sep 17 00:00:00 2001
From: AskaEth <i@yeij.top>
Date: Sun, 26 Jul 2026 18:28:45 +0800
Subject: [PATCH] fix: suppress WebSocket keepalive timeout tracebacks from
 stderr

---
 app.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/app.py b/app.py
index b8d5353..221fe69 100644
--- a/app.py
+++ b/app.py
@@ -27,6 +27,19 @@ os.makedirs(BASE_DIR / "logs", exist_ok=True)
 
 @asynccontextmanager
 async def lifespan(app: FastAPI):
+    import asyncio
+    import warnings
+    from websockets.exceptions import ConnectionClosedError
+
+    def _handle_async_exception(loop, ctx):
+        exc = ctx.get("exception")
+        if isinstance(exc, ConnectionClosedError):
+            return
+        loop.default_exception_handler(ctx)
+
+    asyncio.get_event_loop().set_exception_handler(_handle_async_exception)
+    warnings.filterwarnings("ignore", message=".*ping timeout.*")
+
     logger.info("=" * 50)
     logger.info("  TurboSu - Racing Telemetry Dashboard")
     logger.info("=" * 50)