handling ExpatError exception raised from ElementTree.XML() method

[mirandacascade at yahoo.com]

Verion of Python: 2.4
O/S: Windows XP
ElementTree resides in the c:\python24\lib\site-packages\elementtree\
folder

When a string that does not contain well-formed XML is passed as an
argument to the XML() method in ElementTree.py, an ExpatError exception
is raised.  I can trap the exception with a try/except where the except
does not specify a specific exception, but I cannot figure out how to
construct the except clause in a try/except statement to catch the
ExpatError exception.  Interactive window illustrates

>>> import elementtree.ElementTree as ElemTree
>>> badxml = '<response>abc</responsez>'
>>> root = ElemTree.XML(badxml)
Traceback (most recent call last):
  File "<interactive input>", line 1, in ?
  File "C:\Python24\Lib\site-packages\elementtree\ElementTree.py", line
960, in XML
    parser.feed(text)
  File "C:\Python24\Lib\site-packages\elementtree\ElementTree.py", line
1242, in feed
    self._parser.Parse(data, 0)
ExpatError: mismatched tag: line 1, column 15
>>> try:
... 	root = ElemTree.XML(badxml)
... except:
... 	print 'some exception raised'
...
some exception raised
>>> try:
... 	root = ElemTree.XML(badxml)
... except ExpatError:
... 	print 'ExpatError exception raised'
...
Traceback (most recent call last):
  File "<interactive input>", line 3, in ?
NameError: name 'ExpatError' is not defined

I'm guessing that I need to define/describe the ExpatError exception
class and then refer to that defined exception class after the keyword
'except' and before the ':', but I cannot figure out how to do that.