swapInOut.py

# --------------------------------------------------------------
#  swapInOut.py
#  Version: 1.0.0
#  Last Updated: January 11th, 2018
# --------------------------------------------------------------


# --------------------------------------------------------------
#  USAGE:
#
#  Find all in/out (merge) nodes and change them to mask/stencil (flipping the A and B inputs to work correctly).
# --------------------------------------------------------------


import nuke
import nukescripts

def swapInOut():

  n = nuke.allNodes()

  for i in n:
      if i.Class() == 'Merge2':
	  if i['operation'].value() == 'in':
	      i['operation'].setValue('mask')
	      nukescripts.swapAB(i)
	  elif i['operation'].value() == 'out':
	      i['operation'].setValue('stencil')
	      nukescripts.swapAB(i)
		
		
		
# Add the following to menu.py
import swapInOut
utilitiesMenu = nuke.menu('Nuke').addMenu('Utilities')
utilitiesMenu.addCommand('Script Cleanup/Convert In+Out to Mask+Stencil', 'swapInOut.swapInOut()')