--- a/tests/test-filelog.py	Thu May 19 00:20:38 2016 +0900
+++ b/tests/test-filelog.py	Sat May 14 14:03:12 2016 +0900
@@ -3,14 +3,15 @@
 Tests the behavior of filelog w.r.t. data starting with '\1\n'
 """
 from __future__ import absolute_import, print_function
+
+from mercurial.node import (
+    hex,
+    nullid,
+)
 from mercurial import (
     hg,
     ui as uimod,
 )
-from mercurial.node import (
-    hex,
-    nullid,
-)
 
 myui = uimod.ui()
 repo = hg.repository(myui, path='.', create=True)