Fix: update RAG pipeline with TinyLlama text-generation

app.py

@@ -2,15 +2,25 @@ import gradio as gr
 from pypdf import PdfReader
 from rag_pipeline import RAGPipeline
 import warnings
+import asyncio
 import logging
 import os
 
-# Suppress FutureWarnings from torch/spaces
 warnings.filterwarnings("ignore", category=FutureWarning)
-
-# Suppress transformers verbose logs
 logging.getLogger("transformers").setLevel(logging.ERROR)
 os.environ["TOKENIZERS_PARALLELISM"] = "false"
+
+# Fix Python 3.13 asyncio cleanup bug
+import sys
+if sys.version_info >= (3, 13):
+    import asyncio.base_events
+    _original_del = asyncio.base_events.BaseEventLoop.__del__
+    def _safe_del(self):
+        try:
+            _original_del(self)
+        except Exception:
+            pass
+    asyncio.base_events.BaseEventLoop.__del__ = _safe_del
 rag = RAGPipeline()
 
 def process_file(file):