Update app.py

app.py

@@ -1,19 +1,13 @@
 import gradio as gr
 import openai
-
-
-#from google.colab import userdata
-#OPENAI_API_KEY = userdata.get('OPENAI_API_KEY')
-
 import os
-from dotenv import load_dotenv
 
-# Load environment variables from .env file
-load_dotenv()
-
-# Fetch OpenAI API Key from Hugging Face Secrets
+# Fetch OpenAI API Key from Hugging Face Secrets (NO .env file)
 OPENAI_API_KEY = os.getenv("OPENAI_API_KEY")
 
+if OPENAI_API_KEY is None:
+    raise ValueError("ERROR: OpenAI API key not found! Make sure to set it in Hugging Face Secrets.")
+
 def chatbot(prompt):
     """ GPT-4o Mini Chatbot """
     openai.api_key = OPENAI_API_KEY