Jinja2 passing value inside value

Question

I am trying to pass a dynamic value to my dictionary in my jinja template which in turn is a value. Code is as below:

"wan_link_info": [
{% for i in range(3) %}

{
    "dummy": "{{ xyz_Links.abc_{{ i }}.abc_link_type }}",
}
{% endfor %}
]

Here the dummy will have value like xyz_Links.abc_0.abc_link_type, xyz_Links.abc_1.abc_link_type, etc.

These text will return a value. Example say:

{{xyz_Links.abc_0.abc_link_type}} = "Stackoverflow"
{{xyz_Links.abc_1.abc_link_type}} = "Facebook"

When I run the above code I get this error:

**"jinja2.exceptions.TemplateSyntaxError: expected token 'end of print statement', got '{'"**

I was able to form the required text by using: {% set link_type = 'xyz_Links.abc_' + i|string + '.abc_link_type' %}. However when I pass link_type to "dummy" (i.e. "dummy":"{{ link_type }}") it prints the same as text and does not fetch the value. Any leads would be highly appreciated. — Abhijit
– Abhijit, Commented Dec 28, 2017 at 9:18

Abhijit · Accepted Answer · 2017-12-29 08:52:23Z

1

It looks like you are trying to fetch dict value. It can be implemented like this:

"wan_link_info": 
               [
                {% for instance in xyz_Links %}
                    {
                    "dummy": "{{ xyz_Links[instance].abc_link_type }}",
                    }
                {% endfor %}
                ]

answered Dec 29, 2017 at 8:52

Abhijit

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