generateDS.py generates Python data structures
(for example, class definitions) from an XML
schema document. These data structures represent
the elements in an XML document described by the
XML schema. It also generates parsers that load an
XML document into those data structures. In
addition, a separate file containing subclasses
(stubs) is optionally generated. The user can add
methods to the subclasses in order to process the
contents of an XML document.
