$ python WMD.py
Traceback (most recent call last):
  File "WMD.py", line 45, in ?
    wmd = WMD()
  File "WMD.py", line 29, in __init__
    ev = EVDispatcher( cf )  # In a way this is the core of the program. It dispatches events between each module
  File "/home/mythtv/wmd/wmd-trunk/wmd/EVDispatcher.py", line 32, in __init__
    self.xlib = EventBridge_PyXlib( self, cf )
  File "/home/mythtv/wmd/wmd-trunk/wmd/EventBridges/PyXlib.py", line 22, in __init__
    self.d = display.Display( ENV_DISPLAY )
  File "/usr/lib/python2.4/site-packages/Xlib/display.py", line 80, in __init__
    self.display = _BaseDisplay(display)
  File "/usr/lib/python2.4/site-packages/Xlib/display.py", line 67, in __init__
    apply(protocol.display.Display.__init__, (self, ) + args, keys)
  File "/usr/lib/python2.4/site-packages/Xlib/protocol/display.py", line 123, in __init__
    self.default_screen = min(self.default_screen, len(self.info.roots) - 1)
  File "/usr/lib/python2.4/site-packages/Xlib/protocol/rq.py", line 1371, in __getattr__
    raise AttributeError(attr)
AttributeError: roots