blenderSB subsurf number view to render

same_subdiv_as_view.py

import bpy

# for all selected object if subsurf modifier:
# render subdivision number = view subdivision number

act = bpy.context.active_object
exist = False
for mod in act.modifiers:
    if mod.type == 'SUBSURF':
        sub = act.modifiers['Subsurf'].levels
        exist = True

if exist:
    for o in bpy.context.selected_objects:
        for mod in o.modifiers:
            if mod.type == 'SUBSURF':
                    o.modifiers['Subsurf'].levels = sub
                    o.modifiers["Subsurf"].render_levels = sub
else:
    print("active object has no subsurf to refer")