move bunch of selected node up

moveUp.py

if orderSelectionToList()[0].dependencies()[0].Class() == 'Read':
    nuke.message("Cannot Move up further to %s" % orderSelectionToList()[0].dependencies()[0].name())
else:
    selection = orderSelectionToList()
    lastNode = orderSelectionToList()[-1]#.dependent()[0]
    lastNodeDep = orderSelectionToList()[-1].dependent()[0]
    moveNode = orderSelectionToList()[0].dependencies()[0]
    [each.setSelected(False) for each in orderSelectionToList()]
    moveNode.setSelected(True)
    nuke.extractSelected()
    lastNodeDep.setInput(0, moveNode)
    moveNode.setInput(0, lastNode)
    moveNode.setSelected(False)
    # comment the line below to disable reselction
    [each.setSelected(True) for each in selection]