Update app.py

app.py

@@ -1,7 +1,8 @@
 import base64
 from langchain.chains.summarize import load_summarize_chain
 from langchain.docstore.document import Document
-from langchain.document_loaders.pdf import PyMuPDFLoader
+#from langchain.document_loaders.pdf import PyMuPDFLoader
+from langchain.document_loaders import PyMuPDFLoader
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 from PyPDF2 import PdfReader
 import re