promoting parameters to subnet node with python

[gweiss 0]

In a test scene I have a sphere node inside a geo node inside a subnet node
I want to promote the sphere node parameters to the subnet node
with this code I'm getting an error:

The attempted operation failed.
Invalid indices/name/parm template


import hou

#get pTGroup on node
node = hou.node('obj/subnet1')
ptg = node.parmTemplateGroup()

#create new folder in group
sphereFolder = houFolderParmTemplate('sphr', 'sphere', folder_type=hou.folderType.Simple)
ptg.addParmTemplate(sphereFolder)

node.setParmTemplateGroup(ptg)

#find inner sphere node
sph = hou.node('obj/subnet1/sphere_object1/sphere1')

#get pTGroup on sphere node
sphG = sph.parmTemplateGroup()

#promote the parameters of sphere node to upper node (subnet1)
sphere_folder = ptg.findFolder("sphere")
for i in sphG.entriesWithoutFolders():
      ptg.appendToFolder(sphere_folder, i)

node.setParmTemplateGroup(ptg)

what am I doing wrong?




 

Edited October 3 by gweiss