Update app.py

app.py

@@ -2,14 +2,14 @@ import streamlit as st
 from dotenv import load_dotenv
 from PyPDF2 import PdfReader
 from langchain.text_splitter import CharacterTextSplitter
-from langchain.embeddings import OpenAIEmbeddings, HuggingFaceInstructEmbeddings
+from langchain.embeddings import HuggingFaceEmbeddings
 from langchain.vectorstores import FAISS
-from langchain.chat_models import ChatOpenAI
+# from langchain.chat_models import ChatOpenAI
 from langchain.memory import ConversationBufferMemory
 from langchain.chains import ConversationalRetrievalChain
 from htmlTemplates import css, bot_template, user_template
 from langchain.llms import HuggingFaceHub
-from langchain.callbacks import get_openai_callback
+# from langchain.callbacks import get_openai_callback
 
 def get_pdf_text(pdf_docs):
     text = ""
@@ -33,7 +33,8 @@ def get_text_chunks(text):
 
 def get_vectorstore(text_chunks):
     # embeddings = OpenAIEmbeddings()
-    embeddings = HuggingFaceInstructEmbeddings(model_name="hkunlp/instructor-xl")
+    # embeddings = HuggingFaceInstructEmbeddings(model_name="hkunlp/instructor-xl")
+    embeddings = HuggingFaceEmbeddings()
     vectorstore = FAISS.from_texts(texts=text_chunks, embedding=embeddings)
     return vectorstore