Hasta La Motion!

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import nuke, os

#This part of the scripts checks the output path and if it doesn’t exist it creates it for you
def CheckOutputPath():
file = nuke.filename(nuke.thisNode())
dir = os.path.dirname(file)
osdir = nuke.callbacks.filenameFilter(dir)
try:
os.makedirs (osdir)
except OSError:
pass

#This script adds the ‘CheckOutputPath()’ script to a selected write node (this can be added as a button in the GUI of Nuke)
def AddCheckOutputPath():
for node in nuke.selectedNodes():
if node.Class() == ‘Write’:
node.knob(‘beforeRender’).setValue(‘CheckOutputPat h.CheckOutputPath()’)
else:
nuke.message(‘This script can only be added to a write node’)

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ive created a py button and its not executing it…
pasted in prerender location still it gives errors…

anyway to use this properly?