diff -r 646245c1c0d9 -r a2324624e516 PLCControler.py
--- a/PLCControler.py	Fri Sep 29 16:39:52 2017 +0300
+++ b/PLCControler.py	Fri Sep 29 16:48:42 2017 +0300
@@ -1788,7 +1788,6 @@
                     else basetype_type.upper())
         return (basetype_content.getname() if basetype_content_type == "derived"
                 else basetype_content_type.upper())
-        return None
 
     # Return Base Type of given possible derived type
     def GetBaseType(self, typename, debug=False):