import_obj.py

    if bpy.ops.object.select_all.poll():
        bpy.ops.object.select_all(action='DESELECT')

    scene = context.scene
#     scn.objects.selected = []
    new_objects = []  # put new objects here

    print('\tbuilding geometry...\n\tverts:%i faces:%i materials: %i smoothgroups:%i ...' % (len(verts_loc), len(faces), len(unique_materials), len(unique_smooth_groups)))
    # Split the mesh by objects/materials, may
    if use_split_objects or use_split_groups:
        SPLIT_OB_OR_GROUP = True
    else:
        SPLIT_OB_OR_GROUP = False

    for verts_loc_split, faces_split, unique_materials_split, dataname in split_mesh(verts_loc, faces, unique_materials, filepath, SPLIT_OB_OR_GROUP):
        # Create meshes from the data, warning 'vertex_groups' wont support splitting
        create_mesh(new_objects,
                    use_edges,
                    verts_loc_split,
                    verts_nor,
                    verts_tex,
                    faces_split,
                    unique_materials_split,
                    unique_material_images,
                    unique_smooth_groups,
                    vertex_groups,
                    dataname,
                    )

    # nurbs support
    for context_nurbs in nurbs:
        create_nurbs(context_nurbs, verts_loc, new_objects)

    # Create new obj
    for obj in new_objects:
        base = scene.objects.link(obj)
        base.select = True

        # we could apply this anywhere before scaling.
        obj.matrix_world = global_matrix

    scene.update()

    axis_min = [1000000000] * 3
    axis_max = [-1000000000] * 3

    if global_clamp_size:
        # Get all object bounds
        for ob in new_objects:
            for v in ob.bound_box:
                for axis, value in enumerate(v):
                    if axis_min[axis] > value:
                        axis_min[axis] = value
                    if axis_max[axis] < value:
                        axis_max[axis] = value

        # Scale objects
        max_axis = max(axis_max[0] - axis_min[0], axis_max[1] - axis_min[1], axis_max[2] - axis_min[2])
        scale = 1.0

        while global_clamp_size < max_axis * scale:
            scale = scale / 10.0

        for obj in new_objects:
            obj.scale = scale, scale, scale

    time_new = time.time()

    print("finished importing: %r in %.4f sec." % (filepath, (time_new - time_main)))
    return {'FINISHED'}