Sometimes, we want to iterate through a list of dictionaries in Jinja template with Python Flask.

In this article, we’ll look at how to iterate through a list of dictionaries in Jinja template with Python Flask.

How to iterate through a list of dictionaries in Jinja template with Python Flask?

To iterate through a list of dictionaries in Jinja template with Python Flask, we use a for loop.

For instance, we write

parent_list = [{'A': 'val1', 'B': 'val2'}, {'C': 'val3', 'D': 'val4'}]

to create the parent_list list of dicts.

Then we write

{% for dict_item in parent_list %}
   {% for key, value in dict_item.items() %}
      <h1>Key: {{key}}</h1>
      <h2>Value: {{value}}</h2>
   {% endfor %}
{% endfor %}

in our Jinja2 template to render the parent_list items in a for loop.

And in the for loop, we add another for loop to render the key and value from dict_item which has the dict being looped through in parent_list.

Conclusion

To iterate through a list of dictionaries in Jinja template with Python Flask, we use a for loop.