Traceback (most recent call last):
  File "/usr/bin/onboard", line 35, in <module>
    from Onboard.OnboardGtk import OnboardGtk as Onboard
  File "/usr/lib/python3.5/site-packages/Onboard/OnboardGtk.py", line 46, in <module>
    from Onboard.Keyboard        import Keyboard
  File "/usr/lib/python3.5/site-packages/Onboard/Keyboard.py", line 59, in <module>
    from Onboard.WordSuggestions       import WordSuggestions
  File "/usr/lib/python3.5/site-packages/Onboard/WordSuggestions.py", line 35, in <module>
    import Onboard.pypredict as pypredict
  File "/usr/lib/python3.5/site-packages/Onboard/pypredict/__init__.py", line 25, in <module>
    from pypredict.lm_wrapper import *
  File "/usr/lib/python3.5/site-packages/Onboard/pypredict/__init__.py", line 25, in <module>
    from pypredict.lm_wrapper import *
  File "/usr/lib/python3.5/site-packages/Onboard/pypredict/lm_wrapper.py", line 27, in <module>
    import pypredict.lm as lm
ImportError: /usr/lib/python3.5/site-packages/Onboard/pypredict/lm.cpython-35m-x86_64-linux-gnu.so: undefined symbol: _ZN19_CachedDynamicModelI16NGramTrieRecencyI8TrieNodeI14TrieNodeKNBaseI11RecencyNodeEE14BeforeLastNodeI20BeforeLastNodeKNBaseIS3_E8LastNodeIS3_EESA_EE14DEFAULT_LAMBDAE