Hey,
This method does iterate through shapes in the scene, but it doesn't seem
to have too much overhead.
import string
shapes = cmds.ls(shapes=True) # List shapes in scene
nonUniqueShapes = [n for n in shapes if '|' in n] # Find all non-unique
shape nodes
nonUniqueShapes.sort(key=lambda x : x.count('|'), reverse=True) # Reverse
list (children first)
for shape in nonUniqueShapes: # Rename
cmds.rename(shape, '{0}#'.format(shape.rpartition('|')[-1].rstrip(string.
digits)))
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