Upload 2 files

app.py

@@ -229,14 +229,9 @@ with gr.Blocks() as demo:
         clear = gr.Button("Clear Chat")
 
         def respond(message, history):
-            if history is None:
-                history = []
-
+            history = history or []
             answer = rag_answer(message)
-
-            # MUST be tuple format
             history.append((message, answer))
-
             return "", history
 
         msg.submit(respond, [msg, chatbot], [msg, chatbot])

requirements.txt

@@ -1,4 +1,4 @@
-gradio
+gradio==3.50.2
 faiss-cpu
 sentence-transformers
 datasets