deluge 
no existing Deluge session
deluge_core; using libtorrent 0.13.0.0. Compiled with NDEBUG value: 1
Applying preferences
/usr/lib/python2.5/site-packages/deluge/core.py:715: DeprecationWarning: integer argument expected, got float
  PREF_FUNCTIONS[pref](self.get_pref(pref))
Traceback (most recent call last):
  File "/usr/bin/deluge", line 87, in <module>
    interface = deluge.interface.DelugeGTK()
  File "/usr/lib/python2.5/site-packages/deluge/interface.py", line 90, in __init__
    '%s %s'%(common.PROGRAM_NAME, common.PROGRAM_VERSION), common.CONFIG_DIR)
  File "/usr/lib/python2.5/site-packages/deluge/core.py", line 215, in __init__
    self.state = pickle.load(pkl_file)
  File "/usr/lib/python2.5/pickle.py", line 1370, in load
    return Unpickler(file).load()
  File "/usr/lib/python2.5/pickle.py", line 858, in load
    dispatch[key](self)
  File "/usr/lib/python2.5/pickle.py", line 1069, in load_inst
    klass = self.find_class(module, name)
  File "/usr/lib/python2.5/pickle.py", line 1124, in find_class
    __import__(module)
ImportError: No module named deluge