Traceback (most recent call last):
File “Parameter Scripted Action”, line 4, in <module>
AttributeError: ‘NoneType’ object has no attribute ‘eval’

Not enough inputs connected to select this group.

import soputils
kwargs = kwargs.parmTuple('grouptype')
kwargs = 0
kwargs = kwargs.parm('ordered').eval()
soputils.selectGroupParm(kwargs)

Andr
It looks like it cannot evaluate the paramater ‘ordered’.
So I guess you could try to copy-link that parameter as well

kwargs['inputindex'] = 0

If you look at the action button script (in type properties window, switch to “action button” tab in parameter description window), it's referencing current node's “grouptype” and “ordered” parameters, which are not promoted. If you promote those parameters, it won't give you ‘NoneType’ error anymore, but it will still fail since selectGroupParm script expects an input connection to the current node (and it doesn't have one).

So instead, you could replace the action button script with something like this:

import soputils;
kwargs = kwargs.path() + ‘/group1’
kwargs = hou.node(kwargs).parmTuple('grouptype')
kwargs = 0
kwargs = hou.node(kwargs).parm('ordered').eval()
soputils.selectGroupParm(kwargs)

bobcat
Is this working in H17.5 ? I tried to replace the action button script with the provided code:
import soputils;.

import soputils
path = kwargs['node'].path()+'/node_inside_hda'
kwargs['node'] = hou.node(path)
kwargs['geometrytype'] = kwargs['node'].parmTuple('grouptype')
kwargs['inputindex'] = 0
kwargs['ordered'] = kwargs['node'].parm('ordered').eval()
soputils.selectGroupParm(kwargs)

len
Now the next issue is the permissions once you lock the HDA (make it non-editable).

Len
This issue came up for me just now and I found that the above code doesn't work if you are simply dragging the group field from inside an HDA into the parameter list.
The

kwargs['ordered']

line is the culprit so the following works (removed 'ordered' line):

import soputils
path = kwargs['node'].path()+'/node_inside_hda'
kwargs['node'] = hou.node(path)
kwargs['geometrytype'] = kwargs['node'].parmTuple('grouptype')
kwargs['inputindex'] = 0
soputils.selectGroupParm(kwargs)

Now the next issue is the permissions once you lock the HDA (make it non-editable).
As @Hendolph pointed out, changing the "editable nodes" field of the HDA solves the permissions issue that seems related to setting the display flag on the node that you select faces or points from.
However, my tests revealed that you have to add the node feeding the actual node that is getting the selection information from the HDA. I assume this has something to do with changing the display setting for the temporary viewport selection but that's just a guess.
After this the HDA can be "Matching current definition" (i.e. locked) and it all works as one would hope.

BTW: Mac 10.16, Houdini Indie 18.0.338

B00merang
Hi, I'm trying to do the same thing here, in 18.5.462 this doesn't seem to work. With a locked network, after making the blast node, and the transform node which feed it both editable nodes. When I lock the asset and try to do a group selection, there is no geometry visible to try to select.

EDIT:

Realised it was because I was using python to force a custom preview. Silly me!