List problem

Configuration
1

Hello everyone,
I have a list:

{% set Players_Groups = [{'Sonos': 'media_player.bureau_sonos'}, {'Ios': 'parents'}] %}

I would like to select the Sonos and the Ios. This just won’t work…

Can someone help me on my way.

Thanks in advance.

2

It is a bit hard to guess what you want to achieve.
The variable already have the two values you want.

3

There are 2 dictionaries and I would like to have the 2 key names!

4 
{{ Players_Group[0].Sonos }}

{{ Players_Group[1].Ios }}
5

Thanks for your response.

But I am looking for the 2 key names

6 
{{ Players_Group[0].keys() | list }}

{{ Players_Group[1].keys() | list }}
7

I have this


{% for Type in SpelersGroep %}
{{Type.keys()}}
{% endfor %}

That results in

dict_keys(['Sonos'])

dict_keys(['Ios'])

But then I still don’t have the clean 'Sonos and Ios".

8 
{% for Type in SpelersGroep %}
{{ Type.keys() | list }}
{% endfor %}

Or do you want the result to be a single list containing the two key names?

{% set Players_Groups = [{'Sonos': 'media_player.bureau_sonos'}, {'Ios': 'parents'}] %}

{% set ns = namespace(k=[]) %}
{% for x in Players_Groups %}
  {% set ns.k = ns.k + [x.keys() | list | first] %}
{% endfor %}
{{ ns.k }}
9

Thank you very much.

That is what I was looking for :sweat_smile: :+1:

10

You’re welcome!

Here’s another way to do it. This one is better if each dict has multiple keys.

{% set Players_Groups = [{'Sonos': 'media_player.bureau_sonos'}, {'Ios': 'parents'}] %}

{% set ns = namespace(k=[]) %}
{% for x in Players_Groups %}
  {% set ns.k = ns.k + [x.keys() | list ] %}
{% endfor %}
{{ ns.k | flatten }}
11

One more question: “What does that “|first” actually do?”

12 
{% set SpelersGroep = [{'Sonos': 'media_player.bureau_sonos'}, {'Ios': 'parents'}] %}
{{ SpelersGroep|map('list')|sum(start=[])|list }}

That gives a list of keys.

{% set SpelersGroep = [{'Sonos': 'media_player.bureau_sonos'}, {'Ios': 'parents'}] %}
{{ " and ".join(SpelersGroep|map('list')|sum(start=[])|list) }}.

…although you probably need to explain exactly what you want.

1 Like
13

It selects the value of the first item in the list.

14

Works great too! Thank you!

15

Today I learned that applying list to a dict will return a list of its keys.

Tip:
With the recent introduction of flatten it can be used instead of sum(start=[]) to “flatten” a list of lists into a simple list.

1 Like
16

:+1:
Apparently there is still a lot to learn.

17

A lifetime of learning.

1 Like
18

One more question If I want the value now, how do I do that?

19

Replace x.keys() with x.values()

{% set Players_Groups = [{'Sonos': 'media_player.bureau_sonos'}, {'Ios': 'parents'}] %}

{% set ns = namespace(k=[]) %}
{% for x in Players_Groups %}
  {% set ns.k = ns.k + [x.values() | list ] %}
{% endfor %}
{{ ns.k | flatten }}