-print "\nMesh before the second nodes duplication:"
-print "Nodes : ", mesh.NbNodes()
-print "Edges : ", mesh.NbEdges()
-print "Quadrangles : ", mesh.NbQuadrangles()
+print("\nMesh before the second nodes duplication:")
+print("Nodes : ", mesh.NbNodes())
+print("Edges : ", mesh.NbEdges())
+print("Quadrangles : ", mesh.NbQuadrangles())