Update flask_app.py

flask_app.py

@@ -39,6 +39,7 @@ text_splitter = RecursiveCharacterTextSplitter(chunk_size=500, chunk_overlap=50)
 embedding_model = HuggingFaceEmbeddings()  # Adjust if you have a specific embedding model
 
 import os
+import rarfile
 from langchain_community.document_loaders import PyPDFLoader
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain.vectorstores import FAISS