Update app.py

app.py

@@ -6,6 +6,8 @@ from langchain.embeddings import HuggingFaceEmbeddings
 from langchain.vectorstores import FAISS
 from langchain_community.llms import CTransformers
 from langchain.chains import ConversationalRetrievalChain
+from huggingface_hub import login
+
 
 def add_vertical_space(spaces=1):
     for _ in range(spaces):
@@ -78,4 +80,5 @@ def main():
         os.remove(file_path)
 
 if __name__ == "__main__":
+    login()
     main()