Update app.py

app.py

@@ -8,9 +8,7 @@ _ = load_dotenv(find_dotenv()) # read local .env file
 from langchain_community.document_loaders import PyPDFLoader
 from langchain.indexes import VectorstoreIndexCreator
 from langchain.vectorstores import DocArrayInMemorySearch
-
 import streamlit as st
-import os
 
 
 os.getenv("OPENAI_API_KEY")