Update app.py

app.py

@@ -47,7 +47,7 @@ The demo loops infinitely when more than 1 sentence is included on the line.
 
 John, who lives in Wolverhampton, which is a town in the West Midlands, went home.
 '''
-
+import spaces
 import re
 import sys
 import torch
@@ -58,6 +58,7 @@ import spacy_alignments as tokenizations
 import xml.dom.minidom
 import pandas as pd
 import gradio as gr
+import os
 
 from collections import deque  #   add this at the top of app.py if not already there