nukeでコマ落とし

コマ落としとバレ消しの注意書き

import nuke

readNodes = nuke.allNodes("Read")
for node in nuke.allNodes():
    node["selected"].setValue(0)
    #print node
for read in readNodes:
    read["selected"].setValue(1)
    first = read["first"].getValue()
    last  = read["last"].getValue()

    timeWarp = nuke.createNode("TimeWarp")
    timeWarp["lookup"].setAnimated(0)
    timeWarp["lookup"].animations()[0].setKey(first, first)
    timeWarp["lookup"].animations()[0].setKey(last, last)
    if first%2 == 0:
        timeWarp["lookup"].setExpression('(int(curve/2))*2')
    else:
        timeWarp["lookup"].setExpression('((int((curve+1)/2))*2)-1')      
    NoteOfCaution = nuke.nuke.createNode("Text2")
    NoteOfCaution["message"].setValue('バレ消しの必要はありません')
    NoteOfCaution["font"].setValue("Adobe Gothic Std", "B")
    NoteOfCaution["font_size"].setValue(72)
    if first%2 == 0:
        NoteOfCaution["opacity"].setExpression('(frame%2)')
    else:
        NoteOfCaution["opacity"].setExpression('((frame+1)%2)')

    read["selected"].setValue(0)
    timeWarp["selected"].setValue(0)
    NoteOfCaution["selected"].setValue(0)