[XML-SIG] Using PyExpat.py

[Don Wakefield]

I'm trying to construct a DOM using PyExpat.py. My environment is:

   Python 1.5.2
   PyXML 0.6.2

Here's the simple code. I've added a few lines like

  reader._override = None

to get past errors that I didn't understand until I came to this
point. Now I don't know what more to do...
------------------------------------------
<CODE>
from xml.parsers import pyexpat
from xml.dom.ext.reader import PyExpat

import time

class Cells:
    def __init__(self, filename):
   
        try:
            reader = PyExpat.Reader()
            reader._override = None
            fp = open(filename, 'r')
            xml_dom_object = reader.fromStream(fp)
        except Exception, msg:
            print "Exception caught:", msg
            return

        self.root = xml_dom_object.documentElement

if __name__ == '__main__':
    import sys
    if len(sys.argv) == 2:
        start = time.clock()
        x = Cells(sys.argv[1])
        end   = time.clock()
        print "Finished loading:", end - start
        
    else:
        print "Usage: python %s [XML-filename]" % sys.argv[0]
</CODE>

Here is the output of a run:
----------------------------
<343 : /user/donw/src/Demo/bigproto> !334
python_ic Time2.py big.xml
Exception caught: pyexpat
Finished loading: 0.0
----------------------------

Can anybody tell me what I'm doing wrong? The goal here is to use
pyexpat.so to speed the building of the DOM. Thanks for any comments.

-- 
Don Wakefield                              Mentor Graphics Corporation
(503) 685-1262                             8005 S.W. Boeckman Road    
don_wakefield@mentorg.com                  Wilsonville, OR 97070-7777