Fresh install on Ubuntu 20.04

I just did a fresh install of Ubuntu, and when I try to install Home Assistant following this guide, I get the error below. Any ideas what might be wrong?

I’m using an Minix Z64 with an Intel Z3735F (64-bit) CPU if that matters.

  Getting requirements to build wheel ... error
  ERROR: Command errored out with exit status 1:
   command: /srv/homeassistant/bin/python3 /srv/homeassistant/share/python-wheels/pep517-0.7.0-py2.py3-none-any.whl/pep517/_in_process.py get_requires_for_build_wheel /tmp/tmp7rtarxlz
       cwd: /tmp/pip-install-lidd1245/aiohttp
  Complete output (1 lines):
  /srv/homeassistant/bin/python3: can't find '__main__' module in '/srv/homeassistant/share/python-wheels/pep517-0.7.0-py2.py3-none-any.whl/pep517/_in_process.py'
  ----------------------------------------
ERROR: Command errored out with exit status 1: /srv/homeassistant/bin/python3 /srv/homeassistant/share/python-wheels/pep517-0.7.0-py2.py3-none-any.whl/pep517/_in_process.py get_requires_for_build_wheel /tmp/tmp7rtarxlz Check the logs for full command output.

Could it be that Ubuntu 20.04 has Python 3.8 pre-installed?

Ubuntu 20.04 indeed comes with Python 3.8. Did you manage to get it working?

Any joy here? I’ve just ordered thin client and Ubuntu 20 is most recent version now, so i’m wondering if it can be used, or should i use ubuntu 18 from the beggining?