Zwave ubuntu

i have setup home assistent now on ubuntu i want to get my zwave working but getting error

Traceback (most recent call last):
File "/usr/local/lib/python3.4/dist-packages/pyozwweb-0.3.0b8-py3.4.egg/openzwave/option.py";, line 72, in init
raise ZWaveException("Can't find device %s : %s" % (device, traceback.format_exception(*sys.exc_info())))
File "/usr/lib/python3.4/traceback.py", line 181, in format_exception
return list(_format_exception_iter(etype, value, tb, limit, chain))
File "/usr/lib/python3.4/traceback.py", line 146, in _format_exception_iter
for value, tb in values:
File "/usr/lib/python3.4/traceback.py", line 125, in _iter_chain
context = exc.context
AttributeError: 'NoneType' object has no attribute 'context'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.4/dist-packages/homeassistant/bootstrap.py", line 106, in _setup_component
if not component.setup(hass, config):
File "/usr/local/lib/python3.4/dist-packages/homeassistant/components/zwave.py", line 175, in setup
DEFAULT_ZWAVE_CONFIG_PATH),)
File "/usr/local/lib/python3.4/dist-packages/pyozwweb-0.3.0b8-py3.4.egg/openzwave/option.py";, line 75, in init
raise ZWaveException("Error when retrieving device %s : %s" % (device, traceback.format_exception(sys.exc_info())))
openzwave.object.ZWaveException: 'Zwave Generic Exception : Error when retrieving device usbzwave : [\'Traceback (most recent call last):\n\', \' File "/usr/local/lib/python3.4/dist-packages/pyozwweb-0.3.0b8-py3.4.egg/openzwave/option.py";, line 72, in _init\n raise ZWaveException("Can\\'t find device %s : %s" % (device, traceback.format_exception(sys.excinfo())))\n\', \' File "/usr/lib/python3.4/traceback.py", line 181, in formatexception\n return list(formatexception_iter(etype, value, tb, limit, chain))\n\', \' File "/usr/lib/python3.4/traceback.py", line 146, in _format_exception_iter\n for value, tb in values:\n\', \' File "/usr/lib/python3.4/traceback.py", line 125, in _iter_chain\n context = exc.__context\n\', "AttributeError: \'NoneType\' object has no attribute \'__context\'\n"]'
INFO:urllib3.connectionpool:Starting new HTTPS connection (1): pypi.python.org
INFO:homeassistant.core:Bus:Handling <Event component_loaded[L]: component=updater>

You might try a docker image. Or maybe you don’t have the right version of python? I think you need Python 3.5.

I found this if it helps you: http://askubuntu.com/questions/682869/install-python-3-5-on-vivid-using-apt-get