Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/deluge/ui/gtkui/gtkui.py", line 329, in _on_reactor_start
    client.start_classic_mode()
  File "/usr/lib/python2.7/site-packages/deluge/ui/client.py", line 559, in start_classic_mode
    self._daemon_proxy = DaemonClassicProxy(self.__event_handlers)
  File "/usr/lib/python2.7/site-packages/deluge/ui/client.py", line 432, in __init__
    self.__daemon = deluge.core.daemon.Daemon(classic=True)
  File "/usr/lib/python2.7/site-packages/deluge/core/daemon.py", line 136, in __init__
    from deluge.core.core import Core
  File "/usr/lib/python2.7/site-packages/deluge/core/core.py", line 36, in <module>
    from deluge._libtorrent import lt
  File "/usr/lib/python2.7/site-packages/deluge/_libtorrent.py", line 59, in <module>
    import libtorrent as lt
ImportError: /usr/lib/libboost_python.so.1.52.0: undefined symbol: PyUnicode_AsUTF8String