More about jinja2:

If you want to set a variable named button:

{% set button = 'Login' %}

If you want to include a partial template (child template) into your parent template use include:

{% include 'fa.button.tpl' %}

BE CAREFUL that we have used {% NOT {{ for the code block.

If one of your templates inherits from a main layout use extends directive:

{% extends "layout.tpl" %}

#python #jinja2 #extends #include #set #variable #set_variable #layout