ExpatError attributes

[Daniel Nogradi]

According to the documentation the xml.parsers.expat module provides the
exception ExpatError and
this exception has 3 attributes, lineno, offset and code. I would like to
use lineno, but can't.

ExpatError itself works, for example if I do

import sys
from xml.dom import minidom
from xml.parsers.expat import ExpatError

try:
minidom.parse("my.xml")
except ExpatError:
print 'The file my.xml is not well-formed.'


and then if the file my.xml is not well-formed, the program says so. Now I
would like to tell the user
on which line the problem is in my.xml, and the attribute lineno is supposed
to do just this. But if I have

import sys
from xml.dom import minidom
from xml.parsers.expat import ExpatError

try:
minidom.parse("my.xml")
except ExpatError:
print 'The file my.xml is not well-formed.'
print 'And the problem is here: ', ExpatError.lineno

then I get an error message:

Traceback (most recent call last):
File "./test", line 11, in ?
print 'And the problem is here: ', ExpatError.lineno
AttributeError: class ExpatError has no attribute 'lineno'

So how can I access the line number on which an xml error occured?
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