[XML-SIG] best current way to access OO XML Schema features

[Jon Berry]

I am interested in accessing the object-oriented
features of XML Schema (from SOX, melded
into XSDL as I understand it) from Python.  

I read that the Xerces parser has the required
support, so I tried hooking up to that.  The
process had me compile Xerces-c, then try
to hook up to it with Pirxx.  For reasons involving
versioning, I haven't been able to do it yet.

On another tack, I looked at XSV, but all I
could find was a status page.  It claims to
conform to XML Schema Part 1: Structures,
but makes no claim about Part 2, so that gave
me pause.  Some of my limited reading suggests
that I might still be all right (still having
access to OO features), but I'm not sure since
Part 1 seems to reference Part 2.

Hopefully I am overlooking an easy solution.
I've got the most recent PyXML and 4Suite
installed.  What's the easiest way to get
access from Python to the most complete
XML Schema parser?

-Jon Berry