(If the maintainer of http://www.w3.org/XML/Schema#Tools would be so 
kind as to add the link to PyXB's home page, I'd appreciate it.  Thanks.)

PyXB version 1.0.0 is now available from SourceForge at: 
http://sourceforge.net/projects/pyxb/

PyXB (Python XML Schema Bindings; "pixbee") is a pure Python package 
that generates Python source code for classes that correspond to data 
structures defined by XMLSchema.  In concept it is similar to JAXB for 
Java and CodeSynthesis XSD for C++.  The current release supports XML 
Schema 1.0.

Version 1.0.0 is feature-complete and suitable for production 
development where validation of incoming and generated documents is 
desired.  The following schema constructs are supported:

   * Class constants corresponding to string enumeration constraints
   * Simple and complex type definitions
   * List and union datatypes
   * Constraints on (simple) datatypes (e.g., minInclusive, length)
   * Model groups and attribute groups
   * Complex content models (all, sequence, choice); minOccurs and 
maxOccurs
   * Abstract types, xsi:type, substitution groups
   * Nillable elements with xsi:nil
   * Namespace qualified attributes and elements
   * Documentation annotations present in the schema are converted to 
Python docstrings in the generated bindings.
   * Pattern constraints (as long as the simple type derives from 
something that is represented as a Python string)

The full distribution includes generated bindings for twenty-three 
namespaces related to web services (including several versions of SOAP 
and WSDL), and twenty-eight namespaces from the Open Geospatial 
Consortium's Geographic Information System schema.

For further information and links to the support forum and mailing list, 
please consult the documentation available at: http://pyxb.sourceforge.net/

Peter