-print "Information about mesh:"
-print "Number of nodes : ", tetra.NbNodes()
-print "Number of edges : ", tetra.NbEdges()
-print "Number of faces : ", tetra.NbFaces()
-print " triangles : ", tetra.NbTriangles()
-print " quadrangles : ", tetra.NbQuadrangles()
-print " polygons : ", tetra.NbPolygons()
-print "Number of volumes : ", tetra.NbVolumes()
-print " tetrahedrons: ", tetra.NbTetras()
-print " hexahedrons : ", tetra.NbHexas()
-print " prisms : ", tetra.NbPrisms()
-print " pyramids : ", tetra.NbPyramids()
-print " polyhedrons : ", tetra.NbPolyhedrons()
+print("Information about mesh:")
+print("Number of nodes : ", tetra.NbNodes())
+print("Number of edges : ", tetra.NbEdges())
+print("Number of faces : ", tetra.NbFaces())
+print(" triangles : ", tetra.NbTriangles())
+print(" quadrangles : ", tetra.NbQuadrangles())
+print(" polygons : ", tetra.NbPolygons())
+print("Number of volumes : ", tetra.NbVolumes())
+print(" tetrahedrons: ", tetra.NbTetras())
+print(" hexahedrons : ", tetra.NbHexas())
+print(" prisms : ", tetra.NbPrisms())
+print(" pyramids : ", tetra.NbPyramids())
+print(" polyhedrons : ", tetra.NbPolyhedrons())