Update app.py

app.py

@@ -6,8 +6,8 @@ import json
 import streamlit as st
 import requests
 
-openai_api_key = os.getenv('openai_api')
-openai_api_key = openai_api_key
+openai_api_key = os.getenv('OPENAI_API_KEY')
+
 Settings.llm = OpenAI(model="gpt-3.5-turbo", temperature=0.4)
 Settings.embed_model = OpenAIEmbedding(model="text-embedding-ada-002")