Update app.py

app.py

@@ -99,7 +99,7 @@ elif st.session_state.page == "python":
     # Append user message
         st.session_state.messages.append(HumanMessage(content=user_input))
     # Invoke the model
-        response = deepseek.invoke(st.session_state.messages)
+        response = chat_gemma.invoke(st.session_state.messages)
     # Append AI response
         st.session_state.messages.append(AIMessage(content=response))
         return response