Get and set knob values #nuke

get_set_values.py

# Get all nodes of type Read
readnodes = nuke.allNodes('Read')
for readnode in readnodes:
    print readnode

# List all knobs for selected node
print( nuke.toNode('Read1') )
# List all knobs for specific node
print( nuke.selectedNode() )

# Get value from specific node
value = nuke.toNode('Read1').knob('file').getValue()
# Get value from selected node
value = nuke.selectedNode().knob('file').getValue()
# Get value from this node
value = nuke.thisNode().knob('file').getValue()
# Get value from specific node and evaluate it (good for expressions)
value = nuke.toNode('Read1').knob('file').evaluate()

# Set specific node's value
nuke.toNode('Read1').knob('file').setValue('c:/hello.tif')
# Set selected node's value
nuke.selectedNode().knob('file').setValue('c:/hello.tif')
# Set this node's value
nuke.thisNode().knob('file').setValue('c:/hello.tif')

# Set specific node's knob to default value
nuke.toNode('Grade1').knob('gamma').setValue( nuke.toNode('Grade1').knob('gamma').defaultValue() )

so when I do the first snippet of code

Get all nodes of type Read

readnodes = nuke.allNodes('Read')
for readnode in readnodes:
print readnode

im altering it like this

Get all nodes of type Camera

myCameras= nuke.allNodes('Camera')
for myCamera in myCameras:
print myCamera

this returns a blank
#Result

and really prints nothing, no list.
Additionally I looked at the script echo when I create a camera and saw that the node it creates is a Camera2?

so I tried replacing the node class with that and still the same result

How do I get this to work?

For some reason nuke has the node class of Camera nodes set as "Camera2". Super odd. because I don't think any other node classes are this way. Here is the code that will yield your desired output:

##Create List
myCameras=[]
##For loop to grab all nodes in the class
for i in nuke.allNodes():
    if i.Class() == ('Camera2'):
        myCameras.append(i.knob('name').getValue())
##Print statement to give list in result
print myCameras

hi i'd like to make auto path finder for my render footages and trust me there is allot of sequence.

• there is the code:

folder = '//animasyon-suley/Animasyon_Arsiv/Season-2/EP 12/cut_034/RGB_color/' #my folder path
autoFR = nuke.toNode("Read_RGB") #selecting my node
#getting sequence frame range for read node
for seq in nuke.getFileNameList(folder):
autoFR["file"].fromUserText(folder + seq)

---

• so this code is working but i want to be like this:

folder = '[value Sticky_Paths.Main_Path]EP [value Sticky_Paths.pulldown]/cut_[file rootname [file tail [value root.name]]]/[value Sticky_Paths.N1]/'
autoFR = nuke.toNode("Read_RGB")
for seq in nuke.getFileNameList(folder):
autoFR["file"].fromUserText(folder + seq)

so the problem is its not working when i set #folder by expression link it giving error like this:

# Result: Traceback (most recent call last):
  File "<string>", line 4, in <module>
TypeError: 'bool' object is not iterable

• so i tried to print folder value as string to an other variable but it didnt work