[jaime@sangria download]$ elisa.py
07/07/2006 17:08:33.2    INFO     Using config file : elisa.conf
07/07/2006 17:08:33.25   INFO     Loaded the plugin 'pictures'
07/07/2006 17:08:33.26   INFO     Loaded the plugin 'dvd'
07/07/2006 17:08:33.43   INFO     Loaded the plugin 'music'
07/07/2006 17:08:33.46   INFO     Loaded the plugin 'movies'
07/07/2006 17:08:33.64   INFO     Loaded the plugin 'meta_fs'
07/07/2006 17:08:33.116  INFO     Loaded the plugin 'vfs'
07/07/2006 17:08:33.118  INFO     Loaded the plugin 'local_fs'
Traceback (most recent call last):
  File "/usr/bin/elisa.py", line 5, in ?
    pkg_resources.run_script('Elisa==0.0.1', 'elisa.py')
  File "/usr/lib/python2.4/site-packages/pkg_resources.py", line 407, in run_script
    self.require(requires)[0].run_script(script_name, ns)
  File "/usr/lib/python2.4/site-packages/pkg_resources.py", line 1084, in run_script
    execfile(script_filename, namespace, namespace)
  File "/usr/lib/python2.4/site-packages/Elisa-0.0.1-py2.4-linux-i686.egg/EGG-INFO/scripts/elisa.py", line 50, in ?
    application.start(config_file)
  File "/usr/lib/python2.4/site-packages/Elisa-0.0.1-py2.4-linux-i686.egg/core/application.py", line 201, in start
    app = Application()
  File "/usr/lib/python2.4/site-packages/Elisa-0.0.1-py2.4-linux-i686.egg/core/application.py", line 65, in __init__
    plugin_manager.load_plugins()
  File "/usr/lib/python2.4/site-packages/Elisa-0.0.1-py2.4-linux-i686.egg/core/plugin_manager.py", line 134, in load_plugins
    self.load_plugins_for_entry_point('elisa.%s' % entry_point)
  File "/usr/lib/python2.4/site-packages/Elisa-0.0.1-py2.4-linux-i686.egg/core/plugin_manager.py", line 173, in load_plugins_for_entry_point
    plugin_class = entrypoint.load()
  File "/usr/lib/python2.4/site-packages/pkg_resources.py", line 1830, in load
    entry = __import__(self.module_name, globals(),globals(), ['__name__'])
  File "/usr/lib/python2.4/site-packages/Elisa-0.0.1-py2.4-linux-i686.egg/core/plugins/upnp.py", line 30, in ?
    from extern import upnp
  File "/usr/lib/python2.4/site-packages/Elisa-0.0.1-py2.4-linux-i686.egg/extern/upnp/__init__.py", line 22, in ?
    import control_point
  File "/usr/lib/python2.4/site-packages/Elisa-0.0.1-py2.4-linux-i686.egg/extern/upnp/control_point.py", line 23, in ?
    import service
  File "/usr/lib/python2.4/site-packages/Elisa-0.0.1-py2.4-linux-i686.egg/extern/upnp/service.py", line 25, in ?
    import event
  File "/usr/lib/python2.4/site-packages/Elisa-0.0.1-py2.4-linux-i686.egg/extern/upnp/event.py", line 24, in ?
    from twisted.web import resource, server
  File "/usr/lib/python2.4/site-packages/twisted/web/resource.py", line 27, in ?
    class IResource(components.Interface):
  File "/usr/lib/python2.4/site-packages/twisted/python/components.py", line 170, in __init__
    raise interface.InvalidInterface("Concrete attribute, %s" % k)
zope.interface.exceptions.InvalidInterface: Concrete attribute, isLeaf