Update app.py

app.py

@@ -10,7 +10,7 @@ def chat_with_gemini(user_api_key, user_input, history):
     Args:
         user_api_key (str): The user's Google Gemini API key (optional).
         user_input (str): The latest message from the user.
-        history (list): The conversation history as a list of messages.
+        history (list): The conversation history as a list of message pairs.
     
     Returns:
         tuple: The updated conversation history with the chatbot's reply.
@@ -20,7 +20,7 @@ def chat_with_gemini(user_api_key, user_input, history):
     
     if not api_key:
         # If no API key is available, prompt the user
-        history.append("Please enter your Google Gemini API key to start the conversation.")
+        history.append(["", "Please enter your Google Gemini API key to start the conversation."])
         return history, history
     
     try:
@@ -42,13 +42,13 @@ def chat_with_gemini(user_api_key, user_input, history):
         chatbot_reply = response.text.strip()
         
         # Append the user input and chatbot reply to the history
-        history.append(user_input)
-        history.append(chatbot_reply)
+        history.append([user_input, ""])  # User message
+        history.append(["", chatbot_reply])  # Bot response
         
         return history, history
     except Exception as e:
         error_message = f"An error occurred: {e}"
-        history.append(error_message)
+        history.append(["", error_message])
         return history, history
 
 with gr.Blocks() as iface: