Jinja (template engine)

Jinja is a template engine for the Python programming language and is licensed under a BSD License. It is similar to the Django template engine but provides Python-like expressions while ensuring that the templates are evaluated in a sandbox. It is a text-based template language and thus can be used to generate any markup as well as sourcecode.

The Jinja template engine allows customization of tags , filters, tests, and globals . Also, unlike the Django template engine, Jinja allows the template designer to call functions with arguments on objects.

Features

From

sandboxed execution
powerful automatic HTML escaping system for XSS prevention
template inheritance
compiles down to the optimal python code just in time
optional ahead-of-time template compilation
easy to debug. Line numbers of exceptions directly point to the correct line in the template.
configurable syntax

Jinja, like Smarty, also ships with an easy-to-use filter system similar to the Unix pipeline.

Example

Here is a small example of a template:

from jinja2 import Template
 
tmpl = Template(u'''\
<!DOCTYPE html>
<html>
  <head>
    <title>{{ variable|escape }}</title>
  </head>
  <body>
  {%- for item in item_list %}
    {{ item }}{% if not loop.last %},{% endif %}
  {%- endfor %}
  </body>
</html>
''')
 
print tmpl.render(
    variable = 'Value with <unsafe> data',
    item_list = [1, 2, 3, 4, 5, 6]
)

This produces the HTML:

<!DOCTYPE html>
<html>
  <head>
    <title>Value with &lt;unsafe&gt; data</title>
  </head>
  <body>
    1,
    2,
    3,
    4,
    5,
    6
  </body>
</html>

Jinja (template engine)

Features

Example

External links