Jinja2 looping over list of dictionary items

Question

I have a list of dictionary items I am looping over.
I can get the key which is the year, when I try to get the data in the dictionary it's printing the year again.

  [{'2020': [], '2019': ['05'], '2018': ['02', '01']}] 
  {% for d in  dirs %}
      {% for sd in d %}
     {{ sd }}
         {% for doy in sd %}   
            {{ doy }}<br>
         {% endfor %}<br><br>
    {% endfor %}
{% endfor %}

Whats is printing is

What I want to print is

Chathan Driehuys · Answer 1 · 2019-05-03T18:14:02.297

2

Change

{% for doy in sd %}

to

{% for doy in d[sd] %}

The reasoning here is that iterating over a dictionary using the for ... in ... syntax iterates over the keys of the dictionary. That means that your nested loop was then attempting to loop over the values within the key of the dictionary rather than the value of the key of the dictionary.

edited May 03 '19 at 18:14

answered May 03 '19 at 18:07

Chathan Driehuys

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score 1 · Accepted Answer · answered May 04 '19 at 00:19

As mentioned above, you can achieve that by modifying your third loop.
To simplify:

list = [{'2020': [''], '2019': ['05'], '2018': ['02', '01']}]

Template:

{% for obj in list %}
  {% for obj2 in obj %}
    <p>{{ obj2 }}</p>
    {% for obj3 in obj[obj2] %}
     <p>{{ obj3 }}</p>
    {% endfor %}
  {% endfor %}
{% endfor %}

Output:

Jinja2 looping over list of dictionary items

2 Answers2

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