Traceback (most recent call last):
  File "/usr/local/bin/run_enso.py", line 20, in <module>
    enso.run()
  File "/usr/local/lib/python2.5/site-packages/enso/__init__.py", line 40, in run
    from enso.events import EventManager
  File "/usr/local/lib/python2.5/site-packages/enso/events.py", line 60, in <module>
    from enso import input
  File "/usr/local/lib/python2.5/site-packages/enso/input/__init__.py", line 1, in <module>
    import enso.providers
  File "/usr/local/lib/python2.5/site-packages/enso/providers.py", line 5, in <module>
    import enso.config
  File "/usr/local/lib/python2.5/site-packages/enso/config.py", line 61, in <module>
    platform = sys.platform
NameError: name 'sys' is not defined