Update app.py

app.py

@@ -261,16 +261,20 @@ Instructions:
             "content": system_prompt
         })
         
-        # Add conversation history (last 3 exchanges)
+        # Add conversation history (last 3 exchanges for context)
         if history and len(history) > 0:
-            # History is already in messages format [{"role": "user", "content": "..."}, ...]
-            # Take last 6 messages (3 user + 3 assistant pairs)
-            recent_history = history[-6:] if len(history) > 6 else history
-            for msg in recent_history:
-                if isinstance(msg, dict) and "role" in msg and "content" in msg:
+            # History is in tuple format [[user, bot], [user, bot]]
+            # Take last 3 exchanges
+            recent_history = history[-3:] if len(history) > 3 else history
+            for exchange in recent_history:
+                if isinstance(exchange, (list, tuple)) and len(exchange) >= 2:
                     messages.append({
-                        "role": msg["role"],
-                        "content": msg["content"]
+                        "role": "user",
+                        "content": exchange[0]
+                    })
+                    messages.append({
+                        "role": "assistant",
+                        "content": exchange[1]
                     })
         
         # Add current query with context
@@ -372,7 +376,7 @@ with gr.Blocks(title="Enhanced RAG Chatbot") as demo:
             clear_msg = gr.Textbox(label="Status", interactive=False, visible=False)
         
         with gr.Column(scale=2):
-            chatbot = gr.Chatbot(label="Conversation", height=500, type="messages")
+            chatbot = gr.Chatbot(label="Conversation", height=500)
             query_input = gr.Textbox(
                 label="Ask a question",
                 placeholder="Type your question here and press Enter...",
@@ -399,10 +403,8 @@ with gr.Blocks(title="Enhanced RAG Chatbot") as demo:
         # Generate answer
         answer = generate_answer(question, history)
         
-        # Add user message
-        history.append({"role": "user", "content": question})
-        # Add assistant response
-        history.append({"role": "assistant", "content": answer})
+        # Append as tuple (user_msg, bot_msg) - Gradio default format
+        history = history + [[question, answer]]
         
         return history, ""