Update app.py

app.py

@@ -1,9 +1,9 @@
 import gradio as gr
 from huggingface_hub import InferenceClient
-from langchain.embeddings import HuggingFaceEmbeddings
-from langchain.vectorstores import FAISS
-from langchain.text_splitter import CharacterTextSplitter
-from langchain.document_loaders import PyPDFLoader
+from langchain_community.embeddings import HuggingFaceEmbeddings
+from langchain_community.vectorstores import FAISS
+from langchain_community.text_splitter import CharacterTextSplitter
+from langchain_community.document_loaders import PyPDFLoader
 import os
 
 # Load the model client