Update app.py

app.py

@@ -15,7 +15,7 @@ from constants import (
 )
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.staticfiles import StaticFiles
-
+import os
 os.environ['CHAINLIT_URL'] = 'http://localhost:7860'
 
 GOOGLE_CLIENT_ID = OAUTH_GOOGLE_CLIENT_ID