[Closed] how to "assign track" in script controller?

after much noodling, i’ve found i’m missing a controller on my custom attribute spinner. here’s a test case…

 clearListener()
 
 --create a test box and sphere, the box's CA will drive the z position of the sphere
 bx = box()
 spr = sphere()
 --add the script controller to the z axis of the sphere
 sprC = s.position.controller[3].controller = float_script()
 
 --create the CA spinner on the box
 select bx
 modPanel.addModToSelection (EmptyModifier())
 
 Test_Attr = attributes Test_Spinners
 (
 	parameters testparams rollout:Test_Rollout
 	(
 		test_spnr type:#float UI:test_spnr default:0
 	)
 	rollout Test_Rollout "test" width:160 height:204
 	(
 		spinner test_spnr pos:[10, 10] range:[0,100,0] fieldwidth:30
 	)
 )
 custAttributes.add (modPanel.getCurrentObject() ) Test_Attr #unique
 
 --add a controller, in this case a bezier_float() to the spinner
 b.modifiers[#Attribute_Holder].Test_Spinners.test_spnr.controller = bezier_float()
 
 --assign the new controller as the target for a variable "test" in the script controller
 sprC.AddTarget "test" b.modifiers[#Attribute_Holder].Test_Spinners.test_spnr.controller
 
 --add the script to drive the sphere's position based on the spinner value
 sprC.script = "test * .5"

the interesting thing is even though i assign this as the target…
$Box01.modifiers[#Attribute_Holder].Test_Spinners.test_spnr.controller

it evaluates in the script controller dialog as…
$Box01.modifiers[#Attribute_Holder].Test_Spinners.‘test_spnr’

if i try to assign the above as the target, it errors out. what is the significance of the ‘test_spnr’ statement?

& why can i assign the track by hand, but have to assign a controller to be able to assign my script?

thanks!

The .addTarget method needs an object or subanim, if you gave it

$Box01.modifiers[#Attribute_Holder].Test_Spinners[1]

it should work, since the [1] is indexing the first subanim in Test_Spinners, which is your test_spnr.