Can't configure Tado

Hi guys,

I am new to Home Assistant. I have been making some progress understanding the platform and I have made my first automations (mainly Hue and Tradfri lights).

I would like to further automate my thermostat, but I am unable to configure the Tado component. I am running Home Asssistant on a macOS computer. The following error occurs when I start Home Assistant:

Error during setup of component tado
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/homeassistant/", line 193, in _async_setup_component
    component.setup, hass, processed_config)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/asyncio/", line 332, in __iter__
    yield self  # This tells Task to wait for completion.
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/asyncio/", line 250, in _wakeup
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/asyncio/", line 245, in result
    raise self._exception
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/concurrent/futures/", line 56, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/homeassistant/components/", line 44, in setup
    from PyTado.interface import Tado
ValueError: source code string cannot contain null bytes

I hope somebody can help me, :-).