[houdini, python] Paste Copied (Rel/Abs) References for stamp()

my_pasteParamsAsStamp.py

#hmasato
#https://gist.github.com/hmasato/996e5d40542937b1f5e4

#PARMmenu.xml
"""
<?xml version="1.0" encoding="UTF-8"?>
<menuDocument>
	<menu>

	<scriptItem id="my_pasteRefAsStamp">
		<label>* Paste References [stamp]</label>
		<insertBefore>paste_channels</insertBefore>
		<scriptPath>$HOME/houdini14.0/scripts/my_pasteParamsAsStamp.py</scriptPath>
		<scriptArgs>absolute</scriptArgs>
	</scriptItem>
	<scriptItem id="my_pasteRelRefAsStamp">
		<label>* Paste Relative References [stamp]</label>
		<insertBefore>paste_channels</insertBefore>
		<scriptPath>$HOME/houdini14.0/scripts/my_pasteParamsAsStamp.py</scriptPath>
		<scriptArgs>relative</scriptArgs>
	</scriptItem>
	</menu>
</menuDocument>
"""

#
# pasteParamsAsStamp
#
# ch() => stamp()
#* Paste Copied Relative References
#* Paste Copied References
#
import sys

def _main(dstList=[], opts=[]):
	relative = not ("absolute" in opts)

	cbList = hou.parmClipboardContents()
	if len(cbList) < 1:
		hou.ui.displayMessage(u'Nothing has been copied.')

	idxList = range(len(cbList))
	if len(idxList) == 1: idxList = [0] * len(dstList)

	num = min(len(idxList), len(dstList))
	for i in xrange(num):
		cb = cbList[idxList[i]]
		(src, dst) = (hou.parm(cb['path']), dstList[i])

		srcName = src.name()
		#for Copy, ForEach, etc
		if src.parmTemplate().dataType() == hou.parmData.String:
			srcName = cb['value']
		srcPath = src.node().path()
		if relative: srcPath = dst.node().relativePathTo(src.node())
		dstValue = dst.eval()
		if dst.parmTemplate().dataType() == hou.parmData.String:
			dstValue = '"%s"' % dstValue

		dst.setExpression('stamp("%s", "%s", %s)' % (srcPath, srcName, dstValue))

_main(kwargs.get('parms', []), sys.argv)