jython lacks working xml processing modules?

[Jane Austine]

Alan Kennedy <alanmk at hotmail.com> wrote in message news:<3FBDF1E7.5ADB00B2 at hotmail.com>...
> [Jane Austine]
> > I'm trying to parse an xml file with jython (not through java parsers
> > like xerces).
> > 
> > I tried minidom in jython 2.1 and 2.2a but all failed.
> 
> It's quite likely that your documents contained namespaces.

No.

Jython 2.1 on java1.4.2-beta (JIT: null)
Type "copyright", "credits" or "license" for more information.
>>> from xml.dom import minidom
>>> minidom.parseString('<tag>foobar</tag>')
Traceback (innermost last):
  File "<console>", line 1, in ?
  File "C:\work\jython-2.1\Lib\xml\dom\minidom.py", line 913, in parseString
  File "C:\work\jython-2.1\Lib\xml\dom\minidom.py", line 900, in _doparse
  File "C:\work\jython-2.1\Lib\xml\dom\pulldom.py", line 251, in getEvent
AttributeError: feed
>>>


> The only
> parser supported in jython is "xmlproc", because it is pure python.

I can't make it work.

>>> import xml.sax,xml.dom.minidom
>>> p=xml.sax.make_parser(["xml.sax.drivers2.drv_xmlproc"])
>>> xml.dom.minidom.parseString('<tag>foobar</tag>',parser=p)
Traceback (innermost last):
  File "<console>", line 1, in ?
  File "C:\work\jython-2.1\Lib\xml\dom\minidom.py", line 913, in parseString
  File "C:\work\jython-2.1\Lib\xml\dom\minidom.py", line 900, in _doparse
  File "C:\work\jython-2.1\Lib\xml\dom\pulldom.py", line 251, in getEvent
AttributeError: feed

> However, "xmlproc" has some significant bugs in relation to namespace
> processing, IIRC from the last time I looked at it.
> 
> > What can I do? 
> 
> 1. Use a Java SAX2 parser, write a jython ContentHandler for it, build
> a Minidom from the events.
> 2. Use a Java DOM processor (DOM4J, JDOM, etc), and let it build a DOM
> for you.
> 
> It would probably be easier if you could give an outline of what you
> are trying to achieve. For example, do you really need to build an
> object model? Do you need to use xpath? Do you need to validate
> structures? Etc, etc.
>

I need the tree model of the xml document. So I'm trying to use DOM parsers.
 
> > The last resort would be using java parsers. Then how
> > can I use them like python xml parsers? It seems like javadom and
> > javasax has something to do, but I don't know how.
> 
> If you want to know about using SAX events to build object models,
> check this old thread on c.l.py.
> 
> http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&selm=mailman.1058894673.16506.python-list%40python.org
> 
> If you have any specific questions or face any specific problems, post
> some details.
> 
> regards,