Update app.py

app.py

@@ -22,7 +22,7 @@ pinecone_key = os.environ['PINECONE_API_KEY']
 pinecone_environment='us-west1-gcp'
 
 
-user_db = {os.environ['username1']: os.environ['password1']]}
+user_db = {os.environ['username1']: os.environ['password1']}
 
 messages = [{"role": "system", "content": 'You are a helpful assistant.'}]