Update app.py

app.py

@@ -15,8 +15,8 @@ label2id =  {
   }
 # names of the files saved in step 2: Training
 
-model_file_name = "xgb_reg.pkl"
-vectorizer_file_name = 'vectorizer.pk'
+model_file_name = "xgb_reg_dg.pkl"
+vectorizer_file_name = 'vectorizer_dg.pk'
 
 
 # load