XSLT transformations in Python through the Gnome libxml C parser

This is an example script on how to do XSLT transformations in Python 2.6 through the Gnome libxml XML C parser and toolkit. The relative fast C library is available on multiple platforms but you will also need Python bindings for libxml2 and libxslt. There is a handy libxml2 and libxslt Python bindings installer for Windows which also includes the C libraries in DLL form.

#!/usr/bin/env python
# this is libxml_xslt_transform_example.py

Example XSLT transformation script that uses the Gnome libxml XML C parser and toolkit

On Windows, Python can make use of the libxml2 and libxslt C libraries (http://www.xmlsoft.org/) through the
following Python bindings http://users.skynet.be/sbi/libxml-python/. Other bindings can be found here
http://codespeak.net/lxml/. The Windows installer includes the C libraries in form of DLLs.
Most Linux distributions already include the C libraries.


Python 2.6
Wolfgang Grunberg
Arizona Geological Survey

# Library Imports
import sys
import libxml2 # binding to C library of same name http://www.xmlsoft.org
import libxslt # binding to C library of same name http://www.xmlsoft.org

# Some variables
transform_xslt = "C:\\tmp\\transform.xslt"
source_xml = "C:\\tmp\\source.xml"
out_xml = "C:\\tmp\\out.xml"

def xslt_transform():
styledoc = libxml2.parseFile(transform_xslt)
style = libxslt.parseStylesheetDoc(styledoc)
doc = libxml2.parseFile(source_xml)
# XSLT transform with parameters
#result = style.applyStylesheet(doc, {"parameter1":"'1'","parameter2":"'string'"})
# XSLT transform without parameters
result = style.applyStylesheet(doc, None) #
style.saveResultToFilename(out_xml, result, 0) # save to file
result_xml = style.saveResultToString(result) # save to string

# cleanup - you are dealing with C libraries

print result_xml

if __name__=="__main__":