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.

The key-features are:
* Configurable syntax. If you are generating LaTeX or other formats with
Jinja2 you can change the delimiters to something that integrates better
into the LaTeX markup.
* Fast. While performance is not the primarily target of Jinja2 it’s
surprisingly fast. The overhead compared to regular Python code was reduced
to the very minimum.
* Easy to debug. Jinja2 integrates directly into the Python traceback system
which allows you to debug Jinja2 templates with regular Python debugging
helpers.
* Secure. It’s possible to evaluate untrusted template code if the optional
sandbox is enabled. This allows Jinja2 to be used as templating language
for applications where users may modify the template design.