Update app.py

app.py

@@ -17,7 +17,7 @@ if not os.path.exists(target_dir):
     os.makedirs(target_dir)
 
 # Open the zip file and extract its contents to the target directory
-with ZipFile(zip_filename, 'r') as zip_ref:
+with zipfile(zip_filename, 'r') as zip_ref:
     zip_ref.extractall(target_dir)
 
 device = 'cpu'