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Powerful and Pythonic XML processing library combining libxml2/libxslt with the ElementTree API.

Project description

lxml is a Pythonic, mature binding for the libxml2 and libxslt libraries. It provides safe and convenient access to these libraries using the ElementTree API.

It extends the ElementTree API significantly to offer support for XPath, RelaxNG, XML Schema, XSLT, C14N and much more.

To contact the project, go to the project home page or see our bug tracker at

In case you want to use the current in-development version of lxml, you can get it from the subversion repository at . Running easy_install lxml==dev will install it from

2.0alpha2 (2007-09-15)

Features added

  • ET.write(), tostring() and tounicode() now accept a keyword argument method that can be one of ‘xml’ (or None), ‘html’ or ‘text’ to serialise as XML, HTML or plain text content.

  • iterfind() method on Elements returns an iterator equivalent to findall()

  • itertext() method on Elements

  • Setting a QName object as value of the .text property or as an attribute will resolve its prefix in the respective context

  • ElementTree-like parser target interface as described in

  • ElementTree-like feed parser interface on XMLParser and HTMLParser (feed() and close() methods)

Bugs fixed

  • lxml failed to serialise namespace declarations of elements other than the root node of a tree

  • Race condition in XSLT where the resolver context leaked between concurrent XSLT calls

Other changes

  • element.getiterator() returns a list, use element.iter() to retrieve an iterator (ElementTree 1.3 compatible behaviour)

Project details

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