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-rw-r--r--catapult/common/py_utils/py_utils/lock_unittest.py8
1 files changed, 6 insertions, 2 deletions
diff --git a/catapult/common/py_utils/py_utils/lock_unittest.py b/catapult/common/py_utils/py_utils/lock_unittest.py
index a260621a..7e17e552 100644
--- a/catapult/common/py_utils/py_utils/lock_unittest.py
+++ b/catapult/common/py_utils/py_utils/lock_unittest.py
@@ -2,14 +2,18 @@
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
import multiprocessing
import os
+import tempfile
import time
import unittest
-import tempfile
-
from py_utils import lock
+from six.moves import range # pylint: disable=redefined-builtin
def _AppendTextToFile(file_name):