def DoubleNodeElemGroupInRegion(self, theElems, theNodesNot, theShape):

 def DoubleNodeElemGroupInRegion(self, theElems, theNodesNot, theShape):
0020617: EDF 1207 SMESH: DoubleNode*: impossible to duplicate edges in a 3D mesh

     def DoubleNodeElemGroupInRegion(self, theElems, theNodesNot, theShape):
-        return self.editor.DoubleNodeElemGroup(theElems, theNodesNot, theShape)
+        return self.editor.DoubleNodeElemGroupInRegion(theElems, theNodesNot, theShape)