diff --git a/tests/helpers.py b/tests/helpers.py
index 9e5d2ab4..f344e1c3 100644
--- a/tests/helpers.py
+++ b/tests/helpers.py
@@ -2,16 +2,16 @@ import functools
 import os
 import os.path
 import random
+import re
+import socket
 import tarfile
 import tempfile
 import time
-import re
-import six
-import socket
 
 import docker
 import paramiko
 import pytest
+import six
 
 
 def make_tree(dirs, files):