Update app.py

app.py

@@ -7,8 +7,10 @@
 import streamlit as st
 from dotenv import load_dotenv
 
-from langchain.embeddings import OpenAIEmbeddings, HuggingFaceInstructEmbeddings
-from langchain.vectorstores import FAISS
+from PyPDF2 import PdfReader
+
+# from langchain.embeddings import OpenAIEmbeddings, HuggingFaceInstructEmbeddings
+# from langchain.vectorstores import FAISS
 
 # from langchain.memory import ConversationBufferMemory
 # from langchain.chains import ConversationalRetrievalChain