The OWM returns precipitation forecast values as they are submitted to their network. It can lead to values like `0.0025000000000004 mm` which does not make sense and messes up the display card. This PR rounds the value to 1 decimal place.
## Description:
More fixes flagged by pylint 2 that don't hurt to have before the actual pylint 2 upgrade (which I'll submit soon).
## Checklist:
- [ ] The code change is tested and works locally.
- [x] Local tests pass with `tox`. **Your PR cannot be merged unless tests pass**
* add initial precipitation support
* move attr to component
* remove blank line
* add forecast attributes to platform and update demo
* add tests
* break long lines
* calc lower temp correctly
* move all new attributes to component
* convert temp low only when existing
* Added forecast functionality to the weather platform, updated OWM to get forecast data
* style fixes
* Changed returned forecast data to a more managable dict
* Fixed line length
* forecast will always be collected, data returned from owm is based on metric setting
* use list comprehension to create the forecast data
* Added forecast data to the weather demo
* Create dict directly in list comprehension
* Minor variable change in weather demo platform
* Convert forecast temperatures in weather component
* set forecast attributes as constants
* Style fixes and tests
* Copied forecast_entry instead of mutating data
Fabian Affolter
Yevgeniy
randellhodges
Paulus Schoutsen
priiduonu
Ville Skyttä
escoand
c727
Otto Winter
Eugenio Panadero
Tom Matheussen
Lewis Juggins