-print "Information about the Mesh_mechanic:"
-print "Number of nodes : ", mesh.NbNodes()
-print "Number of edges : ", mesh.NbEdges()
-print "Number of faces : ", mesh.NbFaces()
-print "Number of triangles : ", mesh.NbTriangles()
-print "Number of quadrangles : ", mesh.NbQuadrangles()
-print "Number of volumes : ", mesh.NbVolumes()
-print "Number of tetrahedrons: ", mesh.NbTetras()
+print("Information about the Mesh_mechanic:")
+print("Number of nodes : ", mesh.NbNodes())
+print("Number of edges : ", mesh.NbEdges())
+print("Number of faces : ", mesh.NbFaces())
+print("Number of triangles : ", mesh.NbTriangles())
+print("Number of quadrangles : ", mesh.NbQuadrangles())
+print("Number of volumes : ", mesh.NbVolumes())
+print("Number of tetrahedrons: ", mesh.NbTetras())