@jadeoneill This triggered Buildbot to [fail](http://buildbot.opencog.org:8010/builders/opencog_master/builds/566/steps/test/logs/testlog):
```======================================================================
ERROR: Failure: ImportError (No module named util)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/nose/loader.py", line 390, in loadTestsFromName
    addr.filename, addr.module)
  File "/usr/lib/python2.7/dist-packages/nose/importer.py", line 39, in importFromPath
    return self.importFromDir(dir_path, fqname)
  File "/usr/lib/python2.7/dist-packages/nose/importer.py", line 86, in importFromDir
    mod = load_module(part_fqname, fh, filename, desc)
  File "/home/buildbot/slave/opencog_master/build/tests/python/test_pln/pln_examples.py", line 6, in <module>
    import util
ImportError: No module named util
```