[XML-SIG] help getting started

[Paul Tremblay]

Hello!

I have switched from perl to python because I thought python
would be better to parse xml. However, I am having a hard time
getting started. I have a specific question below, but perhaps I
should ask where I can find documentation for parsing xml with
python. 

I had considered buying the O'Reilly book on xml and python until
I looked at it at a local bookstore. The chapter on sax seems
rather short and bare of examples. I am still considering buying
it. Have other people found this book helpful?

I have also found very few tutorials on line. The two I did find,
linked to python.org, were incomplete. 

That brings me to my specific quetion:

I have copied exactly the script from:

http://pyxml.sourceforge.net/topics/howto/SAX.html

I am getting this error:

Traceback (most recent call last):
  File "/home/paul/paultemp/parser.test.py", line 15, in ?
    class FindIssue(saxutils.DefaultHandler):
AttributeError: 'xml.sax.saxutils' module has no attribute 'DefaultHandler'

I am guessing this means that saxutils has no DefaultHandler
class, though I'm really not sure. I've included a complete copy
of the script below

Thanks in advance!

Paul


***************************************
#!/usr/bin/python

from xml.sax import saxutils


from xml.sax import make_parser
from xml.sax.handler import feature_namespaces

#from xml.sax import Contenthandler

#class docHandler(ContentHandler):



class FindIssue(saxutils.DefaultHandler):
    def __init__(self, title, number):
        self.search_title, self.search_number = title, number


	def startElement(self, name, attrs):
        # If it's not a comic element, ignore it
		if name != 'comic': 
			return

        # Look for the title and number attributes (see text)
        title = attrs.get('title', None)
        number = attrs.get('number', None)
        if title == self.search_title and number == self.search_number:
            print title, '#'+str(number), 'found'

if __name__ == '__main__':

    file = "/home/paul/paultemp/test.xml"
    # Create a parser
    parser = make_parser()
    # Tell the parser we are not interested in XML namespaces
    parser.setFeature(feature_namespaces, 0)

    # Create the handler
    dh = FindIssue('Sandman', '62')

    # Tell the parser to use our handler
    parser.setContentHandler(dh)

    # Parse the input
    parser.parse(file)


-- 

************************
*Paul Tremblay         *
*phthenry@earthlink.net*
************************