XIST is an extensible HTML/XML generator written in Python. XIST is also a DOM parser (built on top of SAX2) with a very simple and pythonesque tree API. Every XML element type corresponds to a Python class and these Python classes provide a conversion method to transform the XML tree (e.g. into HTML). XIST can be considered object oriented XSL.

Some of the significant features of XIST include:

Easily extensible with new XML elements,
Can be used for offline or online page generation,
Allows embedding Python code in XML files,
Supports separation of layout and logic,
Can be used together with mod_python, PyWX or Webware to generate dynamic pages,
Fully supports Unicode and XML namespaces,
Provides features to use XIST together with JSP/Struts (when replacing Struts tag libraries with XIST this speeds up pages by a factor of 10.)