On Wed, 2005-06-08 at 10:27 -0400, JonTom Kittredge wrote:
> I'm having trouble using PyXML to evaluate XPath expressions that
> include namespace references.
>
> Here is a sample Python snipped:
>
> #!/usr/bin/env pystart
>
> import sys
> import xml.dom.minidom
>
> from xml.xpath.Context import Context
> from xml.xpath import Evaluate
> from xml.xpath.NamespaceNode import NamespaceNode
>
>
> if __name__ == "__main__":
> sys.stderr.write("XPathTest: 18\n")
>
> inputDom = xml.dom.minidom.parse(open("xpathtest-input.xml"))
>
> sys.stderr.write("Node: %s\n" % (inputDom.documentElement))
> outContext = Context(inputDom.documentElement)
Where are you passing in the NS mapping here? Did I miss a PyXML XPath
update that defaults mappings to in-scope namespaces on the node passed
in?
> sys.stderr.write("NSes=%s\n" % (outContext.nss()))
>
> result = Evaluate("count(/dbq:Contract)",
> contextNode=inputDom.documentElement,
I think this line is your problem. It overrides the next (probably not
sensible, which is why we reversed that priority in 4Suite ages ago).
> context=outContext)
--
Uche Ogbuji Fourthought, Inc.
http://uche.ogbuji.net http://fourthought.com
http://copia.ogbuji.net http://4Suite.org
Use CSS to display XML, part 2 -
http://www-128.ibm.com/developerworks/edu/x-dw-x-xmlcss2-i.html
XML Output with 4Suite & Amara - http://www.xml.com/pub/a/2005/04/20/py-xml.html
Use XSLT to prepare XML for import into OpenOffice Calc -
http://www.ibm.com/developerworks/xml/library/x-oocalc/
Schema standardization for top-down semantic transparency -
http://www-128.ibm.com/developerworks/xml/library/x-think31.html
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