Update app.py

app.py

@@ -2,10 +2,10 @@ import os
 import gc
 import torch
 import gradio as gr
-from langchain_community.document_loaders import PyMuPDFLoader, TextLoader
-from langchain_text_splitters import CharacterTextSplitter
-from langchain_community.vectorstores import FAISS
-from langchain_community.embeddings import HuggingFaceEmbeddings
+from langchain.document_loaders import PyMuPDFLoader, TextLoader
+from langchain.text_splitter import CharacterTextSplitter
+from langchain.vectorstores import FAISS
+from langchain.embeddings import HuggingFaceEmbeddings
 from langchain.chains import RetrievalQA
 from langchain.llms import HuggingFacePipeline
 from transformers import pipeline, AutoTokenizer, BitsAndBytesConfig