Update app.py

app.py

@@ -47,9 +47,8 @@ def solve(question, class_level, history):
     answer = reply.split("<|im_start|>assistant\n")[-1]
     answer = answer.replace("<|im_end|>", "").strip()
 
-    # ✅ Gradio 6 format — dict with role and content
-    history.append({"role": "user",      "content": question})
-    history.append({"role": "assistant", "content": answer})
+    # ✅ Simple tuple format — works across all Gradio versions
+    history.append((question, answer))
     return history, ""
 
 with gr.Blocks(title="Math Tutor Class 6-10") as app:
@@ -60,8 +59,7 @@ with gr.Blocks(title="Math Tutor Class 6-10") as app:
             choices=["6", "7", "8", "9", "10"],
             value="8", label="Select Class", scale=1
         )
-    # ✅ Gradio 6 chatbot — type="messages"
-    chatbot = gr.Chatbot(label="Math Solutions", height=450, type="messages")
+    chatbot = gr.Chatbot(label="Math Solutions", height=450)
     with gr.Row():
         question = gr.Textbox(
             label="Your Question",