--- a/CodeFileTreeNode.py	Fri Sep 22 20:12:22 2017 +0300
+++ b/CodeFileTreeNode.py	Thu Sep 28 12:20:40 2017 +0300
@@ -83,7 +83,7 @@
 SECTION_TAG_ELEMENT = "<xsd:element name=\"%s\" type=\"CodeText\"/>"
 
 
-class CodeFile:
+class CodeFile(object):
 
     CODEFILE_NAME = "CodeFile"
     SECTIONS_NAMES = []