Creating sensor + split attribute output

Configuration
1

Hi there.
I have custom weather integration.
This integration has many sensors, one of them is today forecast.
This sensor have many attributes:

minimum_temperature: 
value: '10'
unit: °C

maximum_temperature: 
value: '22'
unit: °C

uvi: 
value: '6'
unit: uv

weather : 
value: Clear
icon: mdi:weather-sunny

description: 
value: >
  This evening and tonight: Mostly clear. Towards early morning strong easterly
  winds will prevail in the northern mountains.

date: 
value: 2023/03/10

20:00: 
weather:
  value: Clear
  icon: mdi:weather-sunny
temperature:
  value: 18
  unit: °C

friendly_name: today

I want to create a new sensor with value of description in it’s state.
To do this, I’m trying to use template developer tools to get correct output:

{{ (state_attr('sensor.ims_forecast_today', 'description') | string )}}

But getting some unnecessary items at the beginning and at the end of output:

{
  "value": "This evening and tonight: Mostly clear. Towards early morning strong easterly winds will prevail in the northern mountains.\n"
}

How can I exclude unnecessary symbols from this output?

snsr
snsr833×232 8.05 KB

2

Maybe this will help you

image
image1643×408 29.8 KB

3

Need to be careful using “dot notation” with keys that also have special meanings in Python or Jinja. Probably safest with bracket notation: this should work:

{{ (state_attr('sensor.ims_forecast_today', 'description')['value'] )}}
4

Thanks and care to expand on this? is it because of ‘value’ in particular, i.e. if it would have been (say) ‘duck’ it would not be an issue?

5

Exactly. In this instance, I think you’d get away with it, but pop this in the template editor to see the issue:

{% set a = {'duck':'quack','value':'careful','keys':'ouch','0':'nodots'} %}
{{ a.keys }}
{{ a['keys'] }}
{{ a.value }}
{{ a['0'] }}

Because keys() is a function on a dictionary, you can’t use dot notation to refer to a member called keys. Same with e.g. a.0 which is interpreted as an index, not valid on a dictionary. It’s always safer to use bracket notation.

1 Like
6

snsr2
snsr2974×743 31.6 KB

here is sensor attribute. i need to take a value of description attribute. But it includes word “value” inside. I need it without this word and without any other symbols

7

issue solved by chatgpt :slight_smile:
{{ state_attr('sensor.ims_forecast_today', 'description')['value'] | regex_replace('\n', '') | regex_replace('^"|"$', '') | replace('Today: ', '') }}

snsr
snsr835×263 10.3 KB

8

How does its suggestion differ from the solution I gave above?

Put that and the ChatGPT one in the template editor and see if there’s any difference.

The ChatGPT solution you show simply adds a few extra filters to remove newlines, double quote characters at the very beginning or end of the string, and the string "Today: ". You didn’t ask for that processing to be done, and it looks to me like you’re taking its answer without understanding what it’s doing.