diff -r f4dec0cca9a1 -r 84468b90e9c1 server/sqlutils.py
--- a/server/sqlutils.py	Wed Sep 16 11:23:51 2015 +0200
+++ b/server/sqlutils.py	Mon Sep 14 16:03:07 2015 +0200
@@ -27,6 +27,7 @@
 from os.path import abspath
 from logging import getLogger
 
+from six import string_types
 from six.moves import filter
 
 from logilab import database as db, common as lgc
@@ -70,7 +71,7 @@
     else:
         execute = cursor_or_execute
     sqlstmts_as_string = False
-    if isinstance(sqlstmts, basestring):
+    if isinstance(sqlstmts, string_types):
         sqlstmts_as_string = True
         sqlstmts = sqlstmts.split(delimiter)
     if withpb: