Update sherlock2.py

sherlock2.py

@@ -323,8 +323,11 @@ def chat_with_sherlock():
 
     if user_input:
         conversation_history = [sherlock_persona, sherlock_guidelines] + st.session_state.chat_history
-        # Convert chat history tuples to strings
-        conversation_text = "\n".join([f"Human: {user}\nSherlock: {response}" for user, response in conversation_history])
+        # Convert chat history to text (handle strings and tuples)
+        conversation_text = "\n".join([
+            item if isinstance(item, str) else f"Human: {item[0]}\nSherlock: {item[1]}" 
+            for item in conversation_history
+        ])
         # Combine conversation text with user input
         prompt = conversation_text + f"\nHuman: {user_input}" 
         response = model.generate_content([prompt])