TypeError: expected string or buffer

[Neal Becker]

smart search libstdc
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Traceback (most recent call last):
  File "/usr/bin/smart", line 194, in ?
    main(sys.argv[1:])
  File "/usr/bin/smart", line 167, in main
    exitcode = iface.run(opts.command, opts.argv)
  File "/usr/lib64/python2.4/site-packages/smart/interface.py", line 53, in 
run
    result = _command.main(self._ctrl, opts)
  File "/usr/lib64/python2.4/site-packages/smart/commands/query.py", line 283, 
in main
    if pattern.search(info.getDescription()):
TypeError: expected string or buffer