[XML-SIG] xpath error

[Uche Ogbuji]

On Mon, 2004-08-30 at 19:19, Ajay wrote:
> hi!
> 
> i parsed an XML document using minidom and then executed the following
> statement:
> dataNodes = xpath.Evaluate(".//*[local-name()='DATA']",
> document.documentElement)
> 
> this gives an error
> 
> Traceback (most recent call last):
>   File "<stdin>", line 1, in ?
>   File "C:\PYTHON23\Lib\site-packages\_xmlplus\xpath\__init__.py", line 70,
> in E
> valuate
>     retval = parser.new().parse(expr).evaluate(con)
>   File
> "C:\PYTHON23\Lib\site-packages\_xmlplus\xpath\ParsedAbbreviatedRelativeLo
> cationPath.py", line 52, in evaluate
>     res = Set.Union(res,subRt)
>   File "C:\PYTHON23\Lib\site-packages\_xmlplus\xpath\Set.py", line 25, in
> Union
>     return compare + filter(lambda x,compare = compare:x not in
> compare,loop)
> TypeError: can only concatenate list (not "tuple") to list

This is a bug that was reported a month ago or so.  The main problem is
that the XPath implementation in PyXML has fallen a long ways behind the
code in 4Suite, and no one has the spare cycles for a re-merge.


-- 
Uche Ogbuji                                    Fourthought, Inc.
http://uche.ogbuji.net    http://4Suite.org    http://fourthought.com
Meet me at XMLOpen Sept 21-23 2004, Cambridge, UK.  http://xmlopen.org

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Practical (Python) SAX Notes - http://www.xml.com/pub/a/2004/08/11/py-xml.html
XML circles the globe - http://www.javareport.com/article.asp?id=9797
Element structures for names and addresses - http://www.ibm.com/developerworks/xml/library/x-elemdes.html
Commentary on "Objects. Encapsulation. XML?" - http://www.adtmag.com/article.asp?id=9090
Harold's Effective XML - http://www.ibm.com/developerworks/xml/library/x-think25.html
A survey of XML standards - http://www-106.ibm.com/developerworks/xml/library/x-stand4/