Houdini - Extract selected node into its own network via an Object Merge

extract_node.txt

#Bung this in a shelf tool.
#Map it to a hotkey for bonus points.
#Drop me a line if anything needs fixing. :)

import re
obj = hou.node("/obj")
selectedNodes = hou.selectedNodes()
networkEditor = hou.ui.paneTabOfType(hou.paneTabType.NetworkEditor)

#Don't do anything if nothing's selected
if len(selectedNodes) > 0:

    parent = selectedNodes[0].parent()
    extractions = []
    
    for node in selectedNodes:

        if isinstance(node, hou.SopNode):
        
            #This isn't a very sophisticated method of removing the probable OUT node name prefex.
            baseName = re.sub("(?i)^out_", "", node.name())

            extracted = obj.createNode("geo", baseName + "_extracted")
            extracted.moveToGoodPosition()
            
            merge = extracted.createNode("object_merge", "merge_" + baseName);
            merge.setParms({"objpath1": node.path()})
            
            extractions.append(extracted.path())

    if len(extractions) > 0:

        if len(extractions) == 1:     

            #If there's only one node being extracted, navigate straight to it.
            extracted.setSelected(True)
            networkEditor.setCurrentNode(hou.node(extractions[0]).children()[0])

        else:

            #If more than one node is being extraced, head up to the parent and zoom out to reveal all.
            parentPos = parent.position()
            parentSize = parent.size()

            rect = hou.BoundingRect(parentPos, parentPos + parentSize)
            
            for e in extractions:
                rect.enlargeToContain(hou.node(e).position() + hou.node(e).size())  
            
            #Add a little padding
            rect.expand([1,1])

            networkEditor.setCurrentNode(parent)
            networkEditor.setVisibleBounds(rect, .1, 0, True)