replace print with logger (#12368)

examples/pytorch/question-answering/utils_qa.py

@@ -413,14 +413,14 @@ def postprocess_qa_predictions_with_beam_search(
                 output_dir, "null_odds.json" if prefix is None else f"{prefix}_null_odds.json"
             )
 
-        print(f"Saving predictions to {prediction_file}.")
+        logger.info(f"Saving predictions to {prediction_file}.")
         with open(prediction_file, "w") as writer:
             writer.write(json.dumps(all_predictions, indent=4) + "\n")
-        print(f"Saving nbest_preds to {nbest_file}.")
+        logger.info(f"Saving nbest_preds to {nbest_file}.")
         with open(nbest_file, "w") as writer:
             writer.write(json.dumps(all_nbest_json, indent=4) + "\n")
         if version_2_with_negative:
-            print(f"Saving null_odds to {null_odds_file}.")
+            logger.info(f"Saving null_odds to {null_odds_file}.")
             with open(null_odds_file, "w") as writer:
                 writer.write(json.dumps(scores_diff_json, indent=4) + "\n")