clone node

import hou
import os

objNode = hou.node('/obj')
outNode = hou.node('/out')

if len(hou.selectedNodes())>0:
    for eachNode in hou.selectedNodes():
        originalNodename = eachNode.name()
        nodetype = eachNode.type().name()

        # check what kind of node it is
        if nodetype == "ifd":
            newNode = outNode.createNode("ifd", "foo")

        if nodetype == "geo":
            newNode = objNode.createNode("geo", "foo")

        # Call original nodes ex and make them black
        eachNode.setName("ori_" + str(originalNodename));
        nodeColor = hou.Color((0.0, 0.0, 0.0))
        eachNode.setColor(nodeColor)

        newNode.setName(originalNodename);

        # Loop original params and transfer them
        for eachParam in eachNode.parms():
            parmName = eachParam.name()
            parmValue = eachParam.eval()

            #Transfer values to new node
            newNode.parm(parmName).set(parmValue);

            #copy expressions if they exist
            try:
                exp = eachParam.expression()
                newNode.parm(parmName).setExpression(exp, hou.exprLanguage.Hscript);
            except:
                pass
                
else:
    print "nothing is selected"