adding `langchain-community`

app.py

@@ -1,7 +1,7 @@
-from langchain.document_loaders import HuggingFaceDatasetLoader
+from langchain_community.document_loaders import HuggingFaceDatasetLoader
+from langchain_community.embeddings import HuggingFaceEmbeddings
+from langchain_community.vectorstores import FAISS
 from langchain.text_splitter import RecursiveCharacterTextSplitter
-from langchain.embeddings import HuggingFaceEmbeddings
-from langchain.vectorstores import FAISS
 
 from transformers import AutoTokenizer, pipeline
 import gradio as gr

requirements.txt

@@ -1,4 +1,5 @@
 langchain 
+langchain-community
 torch 
 transformers[torch] 
 sentence-transformers