Update app.py

app.py

@@ -120,6 +120,7 @@ def save_details(Method,text_output,img):
     img_path = []
     text = []
     input_img = ''
+    hostname = ''
     picture_path = "image.jpg"    
     curr_datetime = datetime.now().strftime('%Y-%m-%d %H-%M-%S')
     if text_output: