How to get values from dictionary in jinja when key is a variable?

How to get values from dictionary in jinja when key is a variable?

In Jinja2, if you want to access values from a dictionary using a variable as the key, you can use the {{ my_dict[key_variable] }} syntax. Here's how you can do it:

Suppose you have a dictionary my_dict and a variable key_variable containing the key you want to use:

# Python code my_dict = { 'apple': 'red', 'banana': 'yellow', 'cherry': 'red' } key_variable = 'banana'

In your Jinja2 template, you can access the value associated with the key stored in key_variable like this:

<!-- Jinja2 template --> {{ my_dict[key_variable] }}

In this example, {{ my_dict[key_variable] }} will render the value 'yellow' because key_variable contains the string 'banana', and 'banana' is the key in the my_dict dictionary.

Here's how you can use it in a full template:

<!DOCTYPE html> <html> <head> <title>Fruit Color</title> </head> <body> <p>The color of {{ key_variable }} is {{ my_dict[key_variable] }}.</p> </body> </html>

When you render this template with the appropriate context (containing my_dict and key_variable), it will generate an HTML page that says, "The color of banana is yellow."

Ensure that you pass the my_dict and key_variable variables into your Jinja2 template context correctly when rendering it.

Examples

  1. "Jinja get value from dictionary with variable key" Description: This query is about retrieving values from a dictionary in Jinja templates where the key is stored in a variable.

    <!-- template.html --> {% set key_variable = 'your_key' %} {{ your_dict[key_variable] }}

  2. "How to access dictionary value using variable key in Jinja" Description: This query aims to access dictionary values in Jinja templates with a variable key.

    <!-- template.html --> {% set key_variable = 'your_key' %} {{ your_dict.get(key_variable) }}

  3. "Jinja template access dictionary value by variable key" Description: This query seeks code to access dictionary values in Jinja templates using a variable as the key.

    <!-- template.html --> {% set key_variable = 'your_key' %} {{ your_dict[key_variable]|default('default_value') }}

  4. "How to get value from dictionary in Jinja with dynamic key" Description: This query is interested in retrieving dictionary values in Jinja templates with dynamically changing keys.

    <!-- template.html --> {% for key in keys_list %} {{ your_dict[key] }} {% endfor %}

  5. "Jinja access dictionary value by key stored in variable" Description: This query aims to access dictionary values in Jinja templates using a key stored in a variable.

    <!-- template.html --> {% set key_variable = 'your_key' %} {% set value_variable = your_dict[key_variable] %} {{ value_variable }}

  6. "How to get value from dictionary in Jinja when key is a variable" Description: This query seeks a solution to retrieve dictionary values in Jinja templates when the key is specified as a variable.

    <!-- template.html --> {% set key_variable = 'your_key' %} {% if key_variable in your_dict %} {{ your_dict[key_variable] }} {% endif %}

  7. "Jinja template get value from dictionary using dynamic key" Description: This query is interested in accessing dictionary values in Jinja templates using dynamically generated keys.

    <!-- template.html --> {{ your_dict.get(dynamic_key, 'default_value') }}

  8. "How to access dictionary value using variable key in Jinja template" Description: This query aims to find code to access dictionary values in Jinja templates with a variable key.

    <!-- template.html --> {% set key_variable = 'your_key' %} {% if key_variable is defined %} {{ your_dict[key_variable] }} {% endif %}

  9. "Jinja get value from dictionary when key is dynamic" Description: This query seeks code to get values from a dictionary in Jinja templates when the keys are dynamically changing.

    <!-- template.html --> {% for key, value in your_dict.items() %} {% if key == dynamic_key %} {{ value }} {% endif %} {% endfor %}

  10. "Access dictionary value with variable key in Jinja" Description: This query is interested in accessing dictionary values in Jinja templates using a variable as the key.

    <!-- template.html --> {% set key_variable = 'your_key' %} {% if your_dict[key_variable] is defined %} {{ your_dict[key_variable] }} {% endif %}

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