--- a/xmlclass/xmlclass.py	Fri Oct 12 11:50:40 2018 +0300
+++ b/xmlclass/xmlclass.py	Fri Oct 12 12:06:45 2018 +0300
@@ -32,6 +32,7 @@
 from xml.sax.saxutils import unescape
 from collections import OrderedDict
 from builtins import str as text
+from functools import reduce
 
 from six import string_types
 from six.moves import xrange