A small but fast and easy to use stand-alone template engine written in pure python.
Jinja2 is a template engine written in pure Python. It provides a Django inspired non-XML syntax but supports inline expressions and an optional sandboxed environment.
Here a small example of a Jinja template:
{% extends 'base.html' %}
{% block title %}Memberlist{% endblock %}
{% block content %}
<ul>
{% for user in users %}
<li><a href="{{ user.url }}">{{ user.username }}</a></li>
{% endfor %}
</ul>
{% endblock %}
Application logic is for the controller but don't try to make the life for the template designer too hard by giving him too few functionality.
For more informations visit the new Jinja2 webpage and documentation.