[s2s] consistent output format across eval scripts (#7435)

examples/seq2seq/rouge_cli.py

@@ -9,7 +9,7 @@ def calculate_rouge_path(pred_path, tgt_path, save_path=None, **kwargs):
     tgt_lns = [x.strip() for x in open(tgt_path).readlines()][: len(pred_lns)]
     metrics = calculate_rouge(pred_lns, tgt_lns, **kwargs)
     if save_path is not None:
-        save_json(metrics, save_path)
+        save_json(metrics, save_path, indent=None)
     return metrics  # these print nicely
 
 

examples/seq2seq/run_eval.py

@@ -152,8 +152,7 @@ def run_generate(verbose=True):
         print(scores)
 
     if args.score_path is not None:
-        path = args.score_path
-        json.dump(scores, open(path, "w"))
+        json.dump(scores, open(args.score_path, "w"))
 
     return scores