Update app.py

app.py

@@ -4,3 +4,12 @@ import requests
 from bs4 import BeautifulSoup
 from dotenv import load_dotenv
 import openai
+
+API_KEY = os.getenv('OPENAI_API_KEY')
+
+if not API_KEY:
+    st.error("API key not found. Please add it to the env.")
+else:
+    openai.api_key = API_KEY
+
+