--- a/POULibrary.py	Fri Sep 22 20:12:22 2017 +0300
+++ b/POULibrary.py	Thu Sep 28 12:20:40 2017 +0300
@@ -25,7 +25,7 @@
 from weakref import ref
 
 
-class POULibrary:
+class POULibrary(object):
     def __init__(self, CTR, LibName, TypeStack):
         from PLCControler import PLCControler
         self.CTR = ref(CTR)