using xmpl.parsers.expat

[Rajarshi Guha]

Hi,
  I just installed the RPM for Python 2.2a3.
When I try and do:

>>> import xml.parsers.expat

I get the following error:

Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File 
"/usr/src/build/42396-i386/install/usr/lib/python2.2/xml/parsers/expat.py", 
line 4, in ?
ImportError: No module named pyexpat

Where is the module pyexpat supposed to come from? How do I get it to work 
(I need it so I can start using SOAP)

TIA
-- 
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Rajarshi Guha