this simple script creates backdrop for selected nodes and name it based on the read node in selection.

namedBackDrop.py

import nuke

sel = nuke.selectedNodes()
if sel:
    # create backdrop for selection
    bckDrop = nukescripts.autoBackdrop()
    for eachNode in sel:
        if eachNode.Class() == 'Read':
            bckDrop.setName(eachNode.name(), uncollide=True) 
else:
    print nuke.message("No node selected")