supervisor: Homeassistant docker image doesn't include build tools. DHT can't work

@Vanuan commented on Aug 2, 2018, 12:44 AM UTC:

Home Assistant release with the issue:

Docker hub image: homeassistant/raspberrypi3-homeassistant Looks like alpine based

Last working Home Assistant release (if known):

N/A

Operating environment (Hass.io/Docker/Windows/etc.):

Raspbian, hassio, docker

Component/platform:

https://www.home-assistant.io/components/sensor.dht/

Description of problem: It requires a wheel module which can’t be build without gcc.

Problem-relevant configuration.yaml entries and (fill out even if it seems unimportant):

sensor:
  - platform: dht
    sensor: DHT11
    pin: 4
    monitored_conditions:
      - temperature
      - humidity

Traceback (if applicable):

Command "/usr/local/bin/python3 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-i52jguvt/Adafruit-Python-DHT/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-eivkfo33/install-record.txt --single-version-externally-managed --prefix  --compile --user --prefix=" failed with error code 1 in /tmp/pip-install-i52jguvt/Adafruit-Python-DHT/

Additional information: Apart of that, Adafruit_Python_DHT==1.3.2 looks broken: adafruit/Adafruit_Python_DHT#102

So 2 issues to fix:

1. add gcc to homeassistant issues (to be able to install wheel addons)
2. change Adafruit_Python_DHT version to 1.3.4

This issue was moved by awarecan from home-assistant/home-assistant#15788.