--- a/cubicweb/cwconfig.py	Wed Aug 31 11:53:21 2016 +0200
+++ b/cubicweb/cwconfig.py	Tue Jul 12 16:17:57 2016 +0200
@@ -181,15 +181,15 @@
 
 __docformat__ = "restructuredtext en"
 
-import sys
-import os
-import stat
 import logging
 import logging.config
-from smtplib import SMTP
-from threading import Lock
+import os
 from os.path import (exists, join, expanduser, abspath, normpath,
                      basename, isdir, dirname, splitext)
+from smtplib import SMTP
+import stat
+import sys
+from threading import Lock
 from warnings import warn, filterwarnings
 
 from six import text_type