At this moment I have a working Home Assistent on a Raspbery Pi by following the instructions on: https://home-assistant.io/docs/installation/virtualenv/
But I would like to upgrade and use the hass.io image to enable automatic updates etc. However I have a script with the use of command_line platform. What I read from the introduction of hass.io this is not possible anymore or am I wrong?
sensor 1:
platform: command_line
name: Persoon aanwezig
scan_interval: 300
command: "python3 /home/pi/get-modem-info.py"