print "is empty", aGroup.IsEmpty()
# check of presence of an entity in the group
-aGroup.Add([1,2]) # method specific to the standalone group
+aGroup.Add([1,2]) # Add() method is specific to the standalone group
print "contains node 2", aGroup.Contains(2)
# get an entity by index
-salome.sg.updateObjBrowser(1)
+salome.sg.updateObjBrowser(True)