Update app.py

app.py

@@ -1,13 +1,12 @@
 import streamlit as st
 import os
+import tempfile
 from langchain_community.vectorstores import FAISS
 from langchain_community.document_loaders import PyPDFLoader
 from langchain.text_splitter import RecursiveCharacterTextSplitter
-from langchain_community.embeddings import HuggingFaceEmbeddings
-from langchain_huggingface import HuggingFaceEndpoint  # Updated import
+from langchain_huggingface import HuggingFaceEmbeddings, HuggingFaceEndpoint
 from langchain.chains import ConversationalRetrievalChain
 from langchain.memory import ConversationBufferMemory
-import tempfile
 
 api_token = os.getenv("HF_TOKEN")
 list_llm = ["meta-llama/Meta-Llama-3-8B-Instruct", "mistralai/Mistral-7B-Instruct-v0.2"]
@@ -186,4 +185,4 @@ def main():
                 st.session_state['sources'] = sources
 
 if __name__ == "__main__":
-    main()
+    main()