Update eval_utils.py

eval_utils.py

@@ -363,6 +363,7 @@ def main():
         elif task == "pcr":
             evaluation_results[task] = evaluate_pcr(gold_data[task], pred_data[task])
         elif task == "summ":
+            nltk.download('punkt')
             evaluation_results[task] = evaluate_summ(gold_data[task], pred_data[task])
         elif task == "lmt":
             evaluation_results[task] = evaluate_lmt(gold_data[task], pred_data[task])