Update app.py

app.py

@@ -8,16 +8,15 @@ import pinecone
 import requests
 #from langchain.prompts.chat import (ChatPromptTemplate, HumanMessagePromptTemplate, SystemMessagePromptTemplate)
 from langchain.chains.question_answering import load_qa_chain
-#from langchain.chains import RetrievalQA
 from langchain import PromptTemplate
 from langchain import HuggingFaceHub
 from PyPDF2 import PdfReader
 #from langchain.document_loaders import TextLoader
 #from sentence_transformers.util import semantic_search
-from pathlib import Path
-from time import sleep
 #import pandas as pd
 #import torch
+from pathlib import Path
+from time import sleep
 import sys
 import os
 import random