Update app.py

app.py

@@ -6,6 +6,7 @@ from transformers import AutoTokenizer, AutoModelForSeq2SeqLM
 from transformers import pipeline
 import torch 
 import textwrap 
+from dotenv import load_dotenv
 from langchain.document_loaders import PyPDFLoader, DirectoryLoader, PDFMinerLoader 
 from langchain.text_splitter import RecursiveCharacterTextSplitter 
 from langchain.embeddings import SentenceTransformerEmbeddings 
@@ -15,6 +16,12 @@ from langchain.chains import RetrievalQA
 from constants import CHROMA_SETTINGS
 from streamlit_chat import message
 
+
+load_dotenv()
+
+os.environ['HUGGINGFACEHUB_API_TOKEN'] = os.getenv('HUGGINGFACEHUB_API_TOKEN')
+
+
 st.set_page_config(layout="wide")
 
 checkpoint = "LaMini-T5-738M"