this works by tagging functions, eg: def my_func(scene): pass bpy.app.handlers.permanent_tag(my_func, True) # <-- important bit bpy.app.handlers.frame_change_pre.append(my_func)
this works by tagging functions, eg: def my_func(scene): pass bpy.app.handlers.permanent_tag(my_func, True) # <-- important bit bpy.app.handlers.frame_change_pre.append(my_func)