Update app.py

app.py

@@ -4,7 +4,7 @@ import streamlit as st
 import os
 import sys
 import shutil
-from langchain.text_splitter import TokenTextSplitter,RecursiveCharacterTextSplitter
+from langchain_community.text_splitter import TokenTextSplitter,RecursiveCharacterTextSplitter
 from langchain.document_loaders import PyPDFLoader
 from langchain.document_loaders.pdf import PyPDFDirectoryLoader
 from langchain_community.embeddings import HuggingFaceEmbeddings