Maya Ascendants Walker

ascendantsWalker.py

import maya.cmds as cmds

def ascendantsWalker(path, visitor=None):
    parents = cmds.listRelatives(path, allParents=True, fullPath=True)
    if not parents:
        return
    
    for parent in parents:
        visitor and visitor(parent)
        yield parent
        for value in ascendantsWalker(parent):
            yield value
    
for parent in ascendantsWalker("cornerPanels_001_null__uid07952"):
    print parent