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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

After an official release of a new stable series, current bug fixes become available at . Running easy_install lxml==2.2bugfix will install this version from

2.2.1 (2009-06-02)

Features added

  • Injecting default attributes into a document during XML Schema validation (also at parse time).

  • Pass huge_tree parser option to disable parser security restrictions imposed by libxml2 2.7.

Bugs fixed

  • The script for statically building libxml2 and libxslt didn’t work in Py3.

  • XMLSchema() also passes invalid schema documents on to libxml2 for parsing (which could lead to a crash before release 2.6.24).

Other changes

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This version


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