Adding py3 stub for reduce from six.moves

lib/ansible/module_utils/basic.py

@@ -113,6 +113,12 @@ else:
     def iteritems(d):
         return d.iteritems()
 
+try:
+    reduce
+except NameError:
+    # Python 3
+    from six.moves import reduce
+
 try:
     NUMBERTYPES = (int, long, float)
 except NameError: