Set and get the value of a tag that's stored with the scene in MODO.

getSetSceneTag.py

# !/usr/bin/env python

import lx
import lxu
import lxu.select

def setSceneTag (tagID, tagValue)
    if isinstance (tagID, basestring):
        if len (tagID) != 4:
            lx.out('Tag ID must be 4 characters long!')
            return
        tagID = lxu.lxID4 (tagID)
    
    tag = lx.object.StringTag ()
    
    scene = lx.object.Scene (lxu.select.SceneSelection ().current ())
    if scene is None:
        lx.out('No current scene!')
        return
    
    scene_item = scene.AnyItemOfType (lx.service.Scene ().ItemTypeLookup (lx.symbol.sITYPE_SCENE))
    if scene_item is None:
        lx.out('No current scene item!')
        return
    
    tag.set (scene_item)
    tag.Set (tagID, tagValue)


def getSceneTag (tagID)
    if isinstance (tagID, basestring):
        if len (tagID) != 4:
            lx.out('Tag ID must be 4 characters long!')
            return
        tagID = lxu.lxID4 (tagID)
    
    tag = lx.object.StringTag ()
    
    scene = lx.object.Scene (lxu.select.SceneSelection ().current ())
    if scene is None:
        lx.out('No current scene!')
        return None
    
    scene_item = scene.AnyItemOfType (lx.service.Scene ().ItemTypeLookup (lx.symbol.sITYPE_SCENE))
    if scene_item is None:
        lx.out('No current scene item!')
        return None
    
    tag.set (scene_item)
    try:
        return tag.Get (tagID)
	except:
        return None


# Usage.
# getSceneTag returns None if there is no tag by that ID or if getting the tag otherwise fails.
# Tags are strings of 4 alpha characters - they are encoded into an int for querying, using lxu.lxID4()
setSceneTag ('MYTG', 'Hello, this is my tag value.')
print getSceneTag ('MYTG')