--- a/doc/tutorials/dataimport/diseasome_parser.py	Tue Sep 15 16:15:03 2015 +0200
+++ b/doc/tutorials/dataimport/diseasome_parser.py	Tue Oct 13 15:09:22 2015 +0200
@@ -97,4 +97,4 @@
             entities[subj]['relations'].setdefault(MAPPING_RELS[rel], set())
             entities[subj]['relations'][MAPPING_RELS[rel]].add(unicode(obj))
     return ((ent.get('attributes'), ent.get('relations')) 
-            for ent in entities.itervalues())
+            for ent in entities.values())