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.
In case you want to use the current in-development version of lxml,
you can get it from the github repository at
https://github.com/lxml/lxml . Note that this requires Cython to
build the sources, see the build instructions on the project home
page. To the same end, running easy_install lxml==dev will
install lxml from
https://github.com/lxml/lxml/tarball/master#egg=lxml-dev if you have
an appropriate version of Cython installed.
ElementTree.write() has a new option doctype that writes out a
doctype string before the serialisation, in the same way as tostring().
GH#220: xmlfile allows switching output methods at an element level.
Patch by Burak Arslan.
LP#1595781, GH#240: added a PyCapsule Python API and C-level API for
passing externally generated libxml2 documents into lxml.
GH#244: error log entries have a new property path with an XPath
expression (if known, None otherwise) that points to the tree element
responsible for the error. Patch by Bob Kline.
The namespace prefix mapping that can be used in ElementPath now injects
a default namespace when passing a None prefix.
Bugs fixed
GH#238: Character escapes were not hex-encoded in the xmlfile serialiser.
Patch by matejcik.
GH#229: fix for externally created XML documents. Patch by Theodore Dubois.
LP#1665241, GH#228: Form data handling in lxml.html no longer strips the
option values specified in form attributes but only the text values.
Patch by Ashish Kulkarni.
LP#1551797: revert previous fix for XSLT error logging as it breaks
multi-threaded XSLT processing.
LP#1673355, GH#233: fromstring() html5parser failed to parse byte strings.
Other changes
The previously undocumented docstring option in ElementTree.write()
produces a deprecation warning and will eventually be removed.
