Update app.py

app.py

@@ -255,13 +255,21 @@ class BackendProcessor:
 logging.basicConfig(level=logging.INFO, format='%(asctime)s - ZEROENGINE - %(message)s', force=True)
 logger = logging.getLogger(__name__)
 
-# Suppress asyncio warnings during shutdown (targeted approach)
+# Comprehensive asyncio warning suppression (multiple layers)
 import warnings
-warnings.filterwarnings("ignore", category=RuntimeWarning, message=".*asyncio.*")
-warnings.filterwarnings("ignore", category=UserWarning, message=".*asyncio.*")
+import sys
+import os
 
-# Set environment variable to suppress asyncio warnings
+# Set environment variables to suppress asyncio warnings
 os.environ['PYTHONASYNCIODEBUG'] = '0'
+os.environ['ASYNCIO_DEBUG'] = '0'
+
+# Suppress all asyncio-related warnings at the Python level
+warnings.filterwarnings("ignore", category=RuntimeWarning, message=".*asyncio.*")
+warnings.filterwarnings("ignore", category=UserWarning, message=".*asyncio.*")
+warnings.filterwarnings("ignore", category=DeprecationWarning, message=".*asyncio.*")
+warnings.filterwarnings("ignore", message=".*file descriptor.*")
+warnings.filterwarnings("ignore", message=".*Invalid file descriptor.*")
 
 # Store original get_event_loop for restoration
 import asyncio
@@ -280,6 +288,21 @@ def _safe_get_event_loop():
 # Replace with safe version
 asyncio.get_event_loop = _safe_get_event_loop
 
+# Also suppress the BaseEventLoop.__del__ warnings by customizing the exception handler
+_original_excepthook = sys.excepthook
+
+def _custom_excepthook(exc_type, exc_value, exc_traceback):
+    # Suppress asyncio file descriptor errors
+    if (exc_type == ValueError and 
+        "Invalid file descriptor" in str(exc_value) and 
+        "BaseEventLoop" in str(exc_traceback)):
+        return  # Suppress the error
+    # Call original handler for other exceptions
+    _original_excepthook(exc_type, exc_value, exc_traceback)
+
+# Install custom exception hook
+sys.excepthook = _custom_excepthook
+
 # --- KERNEL INITIALIZATION ---
 try:
     from llama_cpp import Llama