diff -r 7fc548d9dd8e -r e2d8e81bfe68 server/test/unittest_postgres.py
--- a/server/test/unittest_postgres.py	Tue Sep 15 15:07:13 2015 +0200
+++ b/server/test/unittest_postgres.py	Tue Sep 15 16:56:57 2015 +0200
@@ -19,6 +19,8 @@
 from datetime import datetime
 from threading import Thread
 
+from six.moves import range
+
 from logilab.common.testlib import SkipTest
 
 from cubicweb import ValidationError
@@ -55,7 +57,7 @@
         range1 = []
         range2 = []
         def allocate_eid_ranges(session, target):
-            for x in xrange(1, 10):
+            for x in range(1, 10):
                 eid = source.create_eid(session, count=x)
                 target.extend(range(eid-x, eid))