Thanx Chris, That 'big fat string' is the one i've been using. But my case is a 
bit different , i need to extract that specific data (like depth - when using 
'animation' codec) and put it on the label.

So, i want to put the info in the label of the write node :


set cut_paste_input [stack 0]
version 6.3 v4
push $cut_paste_input
Write {
 file test.mov
 file_type mov
 codec "rle "
 fps 23.97999954
 quality Normal
 keyframerate 0
 checkHashOnRead false
 name Write4
 label "\nfps: \[value fps]\nquality: \[value quality]\ndepth: (how?)"
 selected true
 xpos -1395
 ypos 380
}


pls have a look codes inside the label knob, so i want to display that info in 
the node's label. for quality , i can use [value quality] or in python format : 
[python nuke.thisNode().knob('quality').value()]

but i couldn't do the same thing for the 'depth' info. it returns error. Any 
idea ?

Thanx a lot.



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