blender layer

        mesh = bpy.data.meshes.new("Raw Curve")
        mesh.from_pydata(self.rawCurve, edges, [])  # verts, edges, faces
        mesh.update()

        obj = bpy.data.objects.new("RawCurve", mesh)
        obj.data = mesh  # this line is redundant .. it simply overwrites .data
        # set layer
        for i in range(20):
            obj.layers[i] = (i == 2)
        scene = bpy.context.scene
        scene.objects.link(obj)