diff --git a/egs/librispeech/ASR/pruned_transducer_stateless_d2v_v2/.train.py.swp b/egs/librispeech/ASR/pruned_transducer_stateless_d2v_v2/.train.py.swp
index f595fd03f..313c65d59 100644
Binary files a/egs/librispeech/ASR/pruned_transducer_stateless_d2v_v2/.train.py.swp and b/egs/librispeech/ASR/pruned_transducer_stateless_d2v_v2/.train.py.swp differ
diff --git a/icefall/.utils.py.swp b/icefall/.utils.py.swp
index 5dde287d6..87eb6e5ff 100644
Binary files a/icefall/.utils.py.swp and b/icefall/.utils.py.swp differ
diff --git a/icefall/utils.py b/icefall/utils.py
index 863e4c032..dc7754cca 100644
--- a/icefall/utils.py
+++ b/icefall/utils.py
@@ -20,6 +20,7 @@ import argparse
 import collections
 import logging
 import os
+import shutil
 import re
 import subprocess
 from collections import defaultdict