libxslt, libxml and xmldoc problem
brian at sweetapp.com
Wed Aug 21 20:47:40 CEST 2002
Aseem Mohanty wrote:
> I read about Pyana on the Zope list, my only concern is, (since you
> the author, you would/should know) is Pyana stable enough for a
> production server with 1000s of XML files and ~50 XSLT translations
> couple of seconds?
I believe so, yes. The core of Pyana's transformation engine is the
Apache Group's Xalan XSLT processor. Most Pyana features just rely on a
simple wrapper to bridge the Xalan C code to Python. However, I'll
suggest, for maximum performance and stability, that you avoid certain
1. Don't extend XPath with Python functions (especially ones that use
complex types such as node sets and result tree fragments)
2. Transform directly to a string, file or writer objects i.e. don't
generate a DOM first and then serialize it yourself
Also, Pyana has a precompiling and preparsing step that you can use for
faster repeated transforms, e.g.
t = Pyana.Transformer()
parsedSource = self.t.parseSource(Pyana.URI("A_First_Scenario.xml"))
stylesheet = self.t.compileStylesheet(Pyana.URI("help_page.xsl"))
Keep in mind that experimenting with Pyana probably won't take very much
time, if you are using Windows.
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