update

ctc_eval.py

@@ -84,6 +84,8 @@ class CTC_Eval(evaluate.EvaluationModule):
     def _download_and_prepare(self, dl_manager):
         """Optional: download external resources useful to compute the scores"""
         # TODO: Download external resources if needed
+        import nltk
+        nltk.download('stopwords')
         from ctc_score import StyleTransferScorer, SummarizationScorer, DialogScorer
         self.scorer = SummarizationScorer(align='D-cnndm')