xml

•  narval  a framework (language + interpreter + GUI/IDE) dedicated to the setting up of intelligent personal assistants (IPAs)
•  xmldiff  a python tool that figures out the differences between two similar XML files, in the same way the diff utility does it
•  pybill  generate bill from an xml file
•  xpathviz  Java graphical tool to execute and visualize XPath
•  pypasax  SAX event from a python source
•  pycompta  An accounting tool that reads entries written in a set of XML files and computes all reports (french ones at least).