OutputFilter is a PHP library that can be used to filter the values of scalars, arrays, and data objects recursively. It can be easily integrated in frameworks. A solution for Zend Framework and Smarty template engine is already included.
Flask is a microframework for Python based on Werkzeug, Jinja 2, and good intentions.
A robust keepalive framework for Linux Virtual Server and router HA.
A Magento extension that adds point of sale functions to the admin panel.