dom_campbell
Are you asking how to get the nested folder params?

If so, say you wanted ‘Rings’ is would be:

For flat parms:
node.parmsInFolder(('Poles', 'Rings'))
For tuple params:
node.parmTuplesInFolder(('Poles', 'Rings'))

jsmack
if its a multiparm, use multiParmInstances() on the parm.

dom_campbell
Calling from/on a hda is not going to make a difference as long as you are calling on the correct `Node`.

A couple of things to check if you are calling it on a non-nested folder you need to make it clear it is a tuple with a trailing `,`; use node.parmTuplesInFolder(('Poles', ))not node.parmTuplesInFolder(('Poles')).

Second thing to check is that you are using the folder's ‘label’ and not it's ‘name’; I know the error says name but for me it sees to require the ‘label’.

In the below you would use ‘First’ not ‘folder0’.

HDAnode = hou.node("/obj/UtilityPole")  
list = HDAnode.parmTuplesInFolder(("Poles", "Rings"))

Shadowjonny
what do you mean by trailing?

Shadowjonny
That is there name

HDAnode

HDAnode.type()

hou.pwd()

hou.node("/obj/UtilityPole")

HDAnode.parm('RingPosition#_#x')

HDAnode.parm('RingPosition___x')

HDAnode.parm('RingPosition#_#x').containingFolders()

HDAnode.parm('RingPosition___x').containingFolders()

HDAnode.parmTuplesInFolder(())

HDAnode.parmTuplesInFolder(('Poles', ))

dom_campbell

Shadowjonny
what do you mean by trailing?

For the trailing ‘,’. I just mean that if you had one item in the tuple you needed a `,` at the end (trailing) to make it a tuple containing one string, leaving it out would make it just a string with bracket around it; `(“Poles”) == “Poles”` not `(“Poles”, )`. You have to values in the tuple so it will be fine.

Shadowjonny
That is there name

No “Poles” and “Rings” look like the labels to me which is what you should be using in `parmTuplesInFolder`. Most on the when accessing things you should be using the names, but not in this case; I dont know why but I am a n00b so maybe the reason is obvious to others.

No sure what will is up with your setup `parmTuplesInFolder()` works as fine for me.

Ask which version you are on? (I am new to Houdini so have only used version 18 and maybe there is a difference)
The version changes '#' characters to '_' when I apply so the screen shot you have could not be applied changes; and obviously you would need to apply the changes before anything would work. Maybe there is some issue with using `#` in the names.

Can you confirm

HDAnode

is differently the correct node?

Can you confirm it's type

HDAnode.type()

?

Where is this python code running from?
I would expect

hou.pwd()

to have been used if it was inside the hda;

hou.node("/obj/UtilityPole")

would only be the right thing to do in session code since it is a scene content path.

Can you access the parms okay? Does

HDAnode.parm('RingPosition#_#x')

return a value okay? or

HDAnode.parm('RingPosition___x')

if it was renamed on apply?

If the parm is returned are does it say the containing folders are?

HDAnode.parm('RingPosition#_#x').containingFolders()

or it the parm was renamed on apply

HDAnode.parm('RingPosition___x').containingFolders()

Is `parmTuplesInFolder` working in general for you?
Does

HDAnode.parmTuplesInFolder(())

return all the parms? (yes, when there is no values in the tuple it knows it is a tuple, one value is just the odd case)

Does

HDAnode.parmTuplesInFolder(('Poles', ))

return all everything in the poles folder?

Sorry, if some of those are a bit obvious and they are a bit confusing. With Houdini a user could some could be an experienced artist but inexperienced programmer, or an experienced programmer but inexperienced artist; those groups don't speak the same language or make the same sort of mistakes.

 HDAnode.parmTuplesInFolder(()) 

HDAnode.parmTuplesInFolder(('Poles', ))

 HDAnode.parm("RingPosition_1_1").eval()

dom_campbell
containingFolders does not work on tuple parms. Try the individual parm.

HDAnode.parm("RingPosition_1_1x").containingFolders()

Shadowjonny
the folder is a multiparm block

# Probably not what you want given you have a nested multiparm block folders and you will need the indices.
# Would be fine for not nested as they are in order
ringPositions = HDAnode.globParms("RingPosition*")

# This time you do need to use the folder names NOT THE LABELS
for i in range(0, HDAnode.evalParm('polesName')):
    adjustedI = i + 1
    for j in range(0, HDAnode.evalParm('ringsName{}'.format(adjustedI))):
        adjustedJ = j + 1
        ringPosition = HDAnode.evalParm("RingPosition{}_{}".format(adjustedI, adjustedJ))
        # etc