Update app.py

app.py

@@ -1,7 +1,7 @@
 
 import gradio as gr
 from transformers import AutoTokenizer, AutoModelForCausalLM, pipeline, WhisperProcessor, WhisperForConditionalGeneration
-from langchain.document_loaders import PyPDFLoader
+from langchain_community.document_loaders import PyPDFLoader
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain.embeddings import HuggingFaceEmbeddings
 from langchain.vectorstores import Chroma
@@ -10,6 +10,7 @@ from langchain.llms import HuggingFacePipeline
 import torch
 import os
 
+
 # --------------------------
 # Load Pretrained LLaMA 2 via Hugging Face Hub
 # --------------------------