diff -r 6d31ef14f396 -r 9c7da6ff6a34 etherlab/etherlab.py
--- a/etherlab/etherlab.py	Fri Sep 28 18:12:18 2018 +0300
+++ b/etherlab/etherlab.py	Fri Sep 28 19:02:49 2018 +0300
@@ -393,7 +393,7 @@
 
 class RootClass:
 
-    CTNChildrenTypes = [("EthercatNode",_EthercatCTN,"Ethercat Master")]
+    CTNChildrenTypes = [("EthercatNode", _EthercatCTN, "Ethercat Master")]
     EditorType = LibraryEditor
 
 
@@ -416,7 +416,7 @@
         return True
 
     def CTNGenerate_C(self, buildpath, locations):
-        return [],"",False
+        return [], "", False
 
     def LoadModulesLibrary(self):
         if self.ModulesLibrary is None: