Update app.py

app.py

@@ -140,7 +140,7 @@ def generate_response(user_input: str, temperature: float = 0.7, max_tokens: int
 
 
 def chat_fn(user_input, history, temperature, max_tokens):
-    """Chat function for Gradio"""
+    """Chat function for Gradio 6.x with messages format"""
     if not user_input or not user_input.strip():
         return "", history or []
     
@@ -149,7 +149,11 @@ def chat_fn(user_input, history, temperature, max_tokens):
     if history is None:
         history = []
     
-    history = history + [[user_input, response]]
+    # Gradio 6.x requires messages format with 'role' and 'content'
+    history = history + [
+        {"role": "user", "content": user_input},
+        {"role": "assistant", "content": response}
+    ]
     
     return "", history
 
@@ -157,14 +161,14 @@ def chat_fn(user_input, history, temperature, max_tokens):
 def feedback_good():
     if current_conv_id > 0:
         db.update_feedback(current_conv_id, 1)
-        return "Thanks for the positive feedback!"
+        return "👍 Thanks for the positive feedback!"
     return "No conversation to rate yet."
 
 
 def feedback_bad():
     if current_conv_id > 0:
         db.update_feedback(current_conv_id, -1)
-        return "Thanks for the feedback. I will try to improve."
+        return "👎 Thanks for the feedback. I will try to improve."
     return "No conversation to rate yet."
 
 
@@ -195,18 +199,18 @@ def retrain(epochs):
     tokenizer = trainer.tokenizer
     
     loss = history.history['loss'][-1]
-    return f"Training done! Loss: {loss:.4f}, Used {len(good_convs)} conversations"
+    return f"✅ Training done! Loss: {loss:.4f}, Used {len(good_convs)} conversations"
 
 
 def get_stats():
     stats = db.get_stats()
-    return f"""## Statistics
+    return f"""## 📊 Statistics
 
 | Metric | Count |
 |--------|-------|
-| Conversations | {stats['total']} |
-| Positive | {stats['positive']} |
-| Negative | {stats['negative']} |
+| 💬 Conversations | {stats['total']} |
+| 👍 Positive | {stats['positive']} |
+| 👎 Negative | {stats['negative']} |
 """
 
 
@@ -216,7 +220,7 @@ initialize()
 print("Initialization complete!")
 
 
-# Create Gradio interface - Fixed for Gradio 6.x
+# Create Gradio interface for Gradio 6.x
 with gr.Blocks(title="Veda Programming Assistant") as demo:
     
     gr.Markdown("""
@@ -228,9 +232,11 @@ with gr.Blocks(title="Veda Programming Assistant") as demo:
     with gr.Tabs():
         
         with gr.TabItem("💬 Chat"):
+            # Chatbot with messages format for Gradio 6.x
             chatbot = gr.Chatbot(
                 label="Conversation",
-                height=400
+                height=400,
+                type="messages"
             )
             
             with gr.Row():