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CHANGES.txt
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CHANGES.txt
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==============
lxml changelog
==============
Under development
==================
Features added
--------------
* New parser classes ``XMLPullParser`` and ``HTMLPullParser`` for
incremental parsing, as implemented for ElementTree in Python 3.4.
Bugs fixed
----------
* LP#1228881: ``repr(XSLTAccessControl)`` failed in Python 3.
* Raise ``ValueError`` when trying to append an Element to itself or
to one of its own descendants.
* LP#1206077: htmldiff discarded whitespace from the output.
* Compressed plain-text serialisation to file-like objects was broken.
Other changes
-------------
* ``iterparse()`` was rewritten to use the new ``*PullParser``
classes internally.
3.2.3 (2013-07-28)
==================
Bugs fixed
----------
* Fix support for Python 2.4 which was lost in 3.2.2.
3.2.2 (2013-07-28)
==================
Features added
--------------
Bugs fixed
----------
* LP#1185701: spurious XMLSyntaxError after finishing iterparse().
* Crash in lxml.objectify during xsi annotation.
Other changes
-------------
* Return values of user provided element class lookup methods are now
validated against the type of the XML node they represent to prevent
API class mismatches.
3.2.1 (2013-05-11)
==================
Features added
--------------
* The methods ``apply_templates()`` and ``process_children()`` of XSLT
extension elements have gained two new boolean options ``elements_only``
and ``remove_blank_text`` that discard either all strings or whitespace-only
strings from the result list.
Bugs fixed
----------
* When moving Elements to another tree, the namespace cleanup mechanism
no longer drops namespace prefixes from attributes for which it finds
a default namespace declaration, to prevent them from appearing as
unnamespaced attributes after serialisation.
* Returning non-type objects from a custom class lookup method could lead
to a crash.
* Instantiating and using subtypes of Comments and ProcessingInstructions
crashed.
Other changes
-------------
3.2.0 (2013-04-28)
==================
Features added
--------------
Bugs fixed
----------
* LP#690319: Leading whitespace could change the behaviour of the string
parsing functions in ``lxml.html``.
* LP#599318: The string parsing functions in ``lxml.html`` are more robust
in the face of uncommon HTML content like framesets or missing body tags.
Patch by Stefan Seelmann.
* LP#712941: I/O errors while trying to access files with paths that contain
non-ASCII characters could raise ``UnicodeDecodeError`` instead of properly
reporting the ``IOError``.
* LP#673205: Parsing from in-memory strings disabled network access in the
default parser and made subsequent attempts to parse from a URL fail.
* LP#971754: lxml.html.clean appends 'nofollow' to 'rel' attributes instead
of overwriting the current value.
* LP#715687: lxml.html.clean no longer discards scripts that are explicitly
allowed by the user provided whitelist. Patch by Christine Koppelt.
Other changes
-------------
3.1.2 (2013-04-12)
==================
Features added
--------------
Bugs fixed
----------
* LP#1136509: Passing attributes through the namespace-unaware API of
the sax bridge (i.e. the ``handler.startElement()`` method) failed
with a ``TypeError``. Patch by Mike Bayer.
* LP#1123074: Fix serialisation error in XSLT output when converting
the result tree to a Unicode string.
* GH#105: Replace illegal usage of ``xmlBufLength()`` in libxml2 2.9.0
by properly exported API function ``xmlBufUse()``.
Other changes
-------------
3.1.1 (2013-03-29)
==================
Features added
--------------
Bugs fixed
----------
* LP#1160386: Write access to ``lxml.html.FormElement.fields`` raised
an AttributeError in Py3.
* Illegal memory access during cleanup in incremental xmlfile writer.
Other changes
-------------
* The externally useless class ``lxml.etree._BaseParser`` was removed
from the module dict.
3.1.0 (2013-02-10)
==================
Features added
--------------
* GH#89: lxml.html.clean allows overriding the set of attributes that it
considers 'safe'. Patch by Francis Devereux.
Bugs fixed
----------
* LP#1104370: ``copy.copy(el.attrib)`` raised an exception. It now returns
a copy of the attributes as a plain Python dict.
* GH#95: When used with namespace prefixes, the ``el.find*()`` methods
always used the first namespace mapping that was provided for each
path expression instead of using the one that was actually passed
in for the current run.
* LP#1092521, GH#91: Fix undefined C symbol in Python runtimes compiled
without threading support. Patch by Ulrich Seidl.
Other changes
-------------
3.1beta1 (2012-12-21)
=====================
Features added
--------------
* New build-time option ``--with-unicode-strings`` for Python 2 that
makes the API always return Unicode strings for names and text
instead of byte strings for plain ASCII content.
* New incremental XML file writing API ``etree.xmlfile()``.
* E factory in lxml.objectify is callable to simplify the creation of
tags with non-identifier names without having to resort to getattr().
Bugs fixed
----------
* When starting from a non-namespaced element in lxml.objectify, searching
for a child without explicitly specifying a namespace incorrectly found
namespaced elements with the requested local name, instead of restricting
the search to non-namespaced children.
* GH#85: Deprecation warnings were fixed for Python 3.x.
* GH#33: lxml.html.fromstring() failed to accept bytes input in Py3.
* LP#1080792: Static build of libxml2 2.9.0 failed due to missing file.
Other changes
-------------
* The externally useless class ``_ObjectifyElementMakerCaller`` was
removed from the module API of lxml.objectify.
* LP#1075622: lxml.builder is faster for adding text to elements with
many children. Patch by Anders Hammarquist.
3.0.2 (2012-12-14)
==================
Features added
--------------
Bugs fixed
----------
* Fix crash during interpreter shutdown by switching to Cython 0.17.3 for building.
Other changes
-------------
3.0.1 (2012-10-14)
==================
Features added
--------------
Bugs fixed
----------
* LP#1065924: Element proxies could disappear during garbage collection
in PyPy without proper cleanup.
* GH#71: Failure to work with libxml2 2.6.x.
* LP#1065139: static MacOS-X build failed in Py3.
Other changes
-------------
3.0 (2012-10-08)
================
Features added
--------------
Bugs fixed
----------
* End-of-file handling was incorrect in iterparse() when reading from
a low-level C file stream and failed in libxml2 2.9.0 due to its
improved consistency checks.
Other changes
-------------
* The build no longer uses Cython by default unless the generated C files
are missing. To use Cython, pass the option "--with-cython". To ignore
the fatal build error when Cython is required but not available (e.g. to
run special setup.py commands that do not actually run a build), pass
"--without-cython".
3.0beta1 (2012-09-26)
=====================
Features added
--------------
* Python level access to (optional) libxml2 memory debugging features
to simplify debugging of memory leaks etc.
Bugs fixed
----------
* Fix a memory leak in XPath by switching to Cython 0.17.1.
* Some tests were adapted to work with PyPy.
Other changes
-------------
* The code was adapted to work with the upcoming libxml2 2.9.0 release.
3.0alpha2 (2012-08-23)
======================
Features added
--------------
* The ``.iter()`` method of elements now accepts ``tag`` arguments like
``"{*}name"`` to search for elements with a given local name in any
namespace. With this addition, all combinations of wildcards now work
as expected:
``"{ns}name"``, ``"{}name"``, ``"{*}name"``, ``"{ns}*"``, ``"{}*"``
and ``"{*}*"``. Note that ``"name"`` is equivalent to ``"{}name"``,
but ``"*"`` is ``"{*}*"``.
The same change applies to the ``.getiterator()``, ``.itersiblings()``,
``.iterancestors()``, ``.iterdescendants()``, ``.iterchildren()``
and ``.itertext()`` methods;the ``strip_attributes()``,
``strip_elements()`` and ``strip_tags()`` functions as well as the
``iterparse()`` class. Patch by Simon Sapin.
* C14N allows specifying the inclusive prefixes to be promoted
to top-level during exclusive serialisation.
Bugs fixed
----------
* Passing long Unicode strings into the ``feed()`` parser interface
failed to read the entire string.
Other changes
-------------
3.0alpha1 (2012-07-31)
======================
Features added
--------------
* Initial support for building in PyPy (through cpyext).
* DTD objects gained an API that allows read access to their
declarations.
* ``xpathgrep.py`` gained support for parsing line-by-line (e.g.
from grep output) and for surrounding the output with a new root
tag.
* ``E-factory`` in ``lxml.builder`` accepts subtypes of known data
types (such as string subtypes) when building elements around them.
* Tree iteration and ``iterparse()`` with a selective ``tag``
argument supports passing a set of tags. Tree nodes will be
returned by the iterators if they match any of the tags.
Bugs fixed
----------
* The ``.find*()`` methods in ``lxml.objectify`` no longer use XPath
internally, which makes them faster in many cases (especially when
short circuiting after a single or couple of elements) and fixes
some behavioural differences compared to ``lxml.etree``. Note that
this means that they no longer support arbitrary XPath expressions
but only the subset that the ``ElementPath`` language supports.
The previous implementation was also redundant with the normal
XPath support, which can be used as a replacement.
* ``el.find('*')`` could accidentally return a comment or processing
instruction that happened to be in the wrong spot. (Same for the
other ``.find*()`` methods.)
* The error logging is less intrusive and avoids a global setup where
possible.
* Fixed undefined names in html5lib parser.
* ``xpathgrep.py`` did not work in Python 3.
* ``Element.attrib.update()`` did not accept an ``attrib`` of
another Element as parameter.
* For subtypes of ``ElementBase`` that make the ``.text`` or ``.tail``
properties immutable (as in objectify, for example), inserting text
when creating Elements through the E-Factory feature of the class
constructor would fail with an exception, stating that the text
cannot be modified.
Other changes
--------------
* The code base was overhauled to properly use 'const' where the API
of libxml2 and libxslt requests it. This also has an impact on the
public C-API of lxml itself, as defined in ``etreepublic.pxd``, as
well as the provided declarations in the ``lxml/includes/`` directory.
Code that uses these declarations may have to be adapted. On the
plus side, this fixes several C compiler warnings, also for user
code, thus making it easier to spot real problems again.
* The functionality of "lxml.cssselect" was moved into a separate PyPI
package called "cssselect". To continue using it, you must install
that package separately. The "lxml.cssselect" module is still
available and provides the same interface, provided the "cssselect"
package can be imported at runtime.
* Element attributes passed in as an ``attrib`` dict or as keyword
arguments are now sorted by (namespaced) name before being created
to make their order predictable for serialisation and iteration.
Note that adding or deleting attributes afterwards does not take
that order into account, i.e. setting a new attribute appends it
after the existing ones.
* Several classes that are for internal use only were removed
from the ``lxml.etree`` module dict:
``_InputDocument, _ResolverRegistry, _ResolverContext, _BaseContext,
_ExsltRegExp, _IterparseContext, _TempStore, _ExceptionContext,
__ContentOnlyElement, _AttribIterator, _NamespaceRegistry,
_ClassNamespaceRegistry, _FunctionNamespaceRegistry,
_XPathFunctionNamespaceRegistry, _ParserDictionaryContext,
_FileReaderContext, _ParserContext, _PythonSaxParserTarget,
_TargetParserContext, _ReadOnlyProxy, _ReadOnlyPIProxy,
_ReadOnlyEntityProxy, _ReadOnlyElementProxy, _OpaqueNodeWrapper,
_OpaqueDocumentWrapper, _ModifyContentOnlyProxy,
_ModifyContentOnlyPIProxy, _ModifyContentOnlyEntityProxy,
_AppendOnlyElementProxy, _SaxParserContext, _FilelikeWriter,
_ParserSchemaValidationContext, _XPathContext,
_XSLTResolverContext, _XSLTContext, _XSLTQuotedStringParam``
* Several internal classes can no longer be inherited from:
``_InputDocument, _ResolverRegistry, _ExsltRegExp, _ElementUnicodeResult,
_IterparseContext, _TempStore, _AttribIterator, _ClassNamespaceRegistry,
_XPathFunctionNamespaceRegistry, _ParserDictionaryContext,
_FileReaderContext, _PythonSaxParserTarget, _TargetParserContext,
_ReadOnlyPIProxy, _ReadOnlyEntityProxy, _OpaqueDocumentWrapper,
_ModifyContentOnlyPIProxy, _ModifyContentOnlyEntityProxy,
_AppendOnlyElementProxy, _FilelikeWriter, _ParserSchemaValidationContext,
_XPathContext, _XSLTResolverContext, _XSLTContext, _XSLTQuotedStringParam,
_XSLTResultTree, _XSLTProcessingInstruction``
2.3.6 (2012-09-28)
==================
Features added
--------------
Bugs fixed
----------
* Passing long Unicode strings into the ``feed()`` parser interface
failed to read the entire string.
Other changes
--------------
2.3.5 (2012-07-31)
==================
Features added
--------------
Bugs fixed
----------
* Crash when merging text nodes in ``element.remove()``.
* Crash in sax/target parser when reporting empty doctype.
Other changes
--------------
2.3.4 (2012-03-26)
==================
Features added
--------------
Bugs fixed
----------
* Crash when building an nsmap (Element property) with empty
namespace URIs.
* Crash due to race condition when errors (or user messages) occur
during threaded XSLT processing.
* XSLT stylesheet compilation could ignore compilation errors.
Other changes
--------------
2.3.3 (2012-01-04)
==================
Features added
--------------
* ``lxml.html.tostring()`` gained new serialisation options
``with_tail`` and ``doctype``.
Bugs fixed
----------
* Fixed a crash when using ``iterparse()`` for HTML parsing and
requesting start events.
* Fixed parsing of more selectors in cssselect. Whitespace before
pseudo-elements and pseudo-classes is significant as it is a
descendant combinator.
"E :pseudo" should parse the same as "E \*:pseudo", not "E:pseudo".
Patch by Simon Sapin.
* lxml.html.diff no longer raises an exception when hitting
'img' tags without 'src' attribute.
Other changes
--------------
2.3.2 (2011-11-11)
==================
Features added
--------------
* ``lxml.objectify.deannotate()`` has a new boolean option
``cleanup_namespaces`` to remove the objectify namespace
declarations (and generally clean up the namespace declarations)
after removing the type annotations.
* ``lxml.objectify`` gained its own ``SubElement()`` function as a
copy of ``etree.SubElement`` to avoid an otherwise redundant import
of ``lxml.etree`` on the user side.
Bugs fixed
----------
* Fixed the "descendant" bug in cssselect a second time (after a first
fix in lxml 2.3.1). The previous change resulted in a serious
performance regression for the XPath based evaluation of the
translated expression. Note that this breaks the usage of some of
the generated XPath expressions as XSLT location paths that
previously worked in 2.3.1.
* Fixed parsing of some selectors in cssselect. Whitespace after combinators
">", "+" and "~" is now correctly ignored. Previously is was parsed as
a descendant combinator. For example, "div> .foo" was parsed the same as
"div>* .foo" instead of "div>.foo". Patch by Simon Sapin.
Other changes
--------------
2.3.1 (2011-09-25)
==================
Features added
--------------
* New option ``kill_tags`` in ``lxml.html.clean`` to remove specific
tags and their content (i.e. their whole subtree).
* ``pi.get()`` and ``pi.attrib`` on processing instructions to parse
pseudo-attributes from the text content of processing instructions.
* ``lxml.get_include()`` returns a list of include paths that can be
used to compile external C code against lxml.etree. This is
specifically required for statically linked lxml builds when code
needs to compile against the exact same header file versions as lxml
itself.
* ``Resolver.resolve_file()`` takes an additional option
``close_file`` that configures if the file(-like) object will be
closed after reading or not. By default, the file will be closed,
as the user is not expected to keep a reference to it.
Bugs fixed
----------
* HTML cleaning didn't remove 'data:' links.
* The html5lib parser integration now uses the 'official'
implementation in html5lib itself, which makes it work with newer
releases of the library.
* In ``lxml.sax``, ``endElementNS()`` could incorrectly reject a plain
tag name when the corresponding start event inferred the same plain
tag name to be in the default namespace.
* When an open file-like object is passed into ``parse()`` or
``iterparse()``, the parser will no longer close it after use. This
reverts a change in lxml 2.3 where all files would be closed. It is
the users responsibility to properly close the file(-like) object,
also in error cases.
* Assertion error in lxml.html.cleaner when discarding top-level elements.
* In lxml.cssselect, use the xpath 'A//B' (short for
'A/descendant-or-self::node()/B') instead of 'A/descendant::B' for
the css descendant selector ('A B'). This makes a few edge cases
like ``"div *:last-child"`` consistent with the selector behavior in
WebKit and Firefox, and makes more css expressions valid location
paths (for use in xsl:template match).
* In lxml.html, non-selected ``<option>`` tags no longer show up in the
collected form values.
* Adding/removing ``<option>`` values to/from a multiple select form
field properly selects them and unselects them.
Other changes
--------------
* Static builds can specify the download directory with the
``--download-dir`` option.
2.3 (2011-02-06)
================
Features added
--------------
* When looking for children, ``lxml.objectify`` takes '{}tag' as
meaning an empty namespace, as opposed to the parent namespace.
Bugs fixed
----------
* When finished reading from a file-like object, the parser
immediately calls its ``.close()`` method.
* When finished parsing, ``iterparse()`` immediately closes the input
file.
* Work-around for libxml2 bug that can leave the HTML parser in a
non-functional state after parsing a severly broken document (fixed
in libxml2 2.7.8).
* ``marque`` tag in HTML cleanup code is correctly named ``marquee``.
Other changes
--------------
* Some public functions in the Cython-level C-API have more explicit
return types.
2.3beta1 (2010-09-06)
=====================
Features added
--------------
Bugs fixed
----------
* Crash in newer libxml2 versions when moving elements between
documents that had attributes on replaced XInclude nodes.
* ``XMLID()`` function was missing the optional ``parser`` and
``base_url`` parameters.
* Searching for wildcard tags in ``iterparse()`` was broken in Py3.
* ``lxml.html.open_in_browser()`` didn't work in Python 3 due to the
use of os.tempnam. It now takes an optional 'encoding' parameter.
Other changes
--------------
2.3alpha2 (2010-07-24)
======================
Features added
--------------
Bugs fixed
----------
* Crash in XSLT when generating text-only result documents with a
stylesheet created in a different thread.
Other changes
--------------
* ``repr()`` of Element objects shows the hex ID with leading 0x
(following ElementTree 1.3).
2.3alpha1 (2010-06-19)
======================
Features added
--------------
* Keyword argument ``namespaces`` in ``lxml.cssselect.CSSSelector()``
to pass a prefix-to-namespace mapping for the selector.
* New function ``lxml.etree.register_namespace(prefix, uri)`` that
globally registers a namespace prefix for a namespace that newly
created Elements in that namespace will use automatically. Follows
ElementTree 1.3.
* Support 'unicode' string name as encoding parameter in
``tostring()``, following ElementTree 1.3.
* Support 'c14n' serialisation method in ``ElementTree.write()`` and
``tostring()``, following ElementTree 1.3.
* The ElementPath expression syntax (``el.find*()``) was extended to
match the upcoming ElementTree 1.3 that will ship in the standard
library of Python 3.2/2.7. This includes extended support for
predicates as well as namespace prefixes (as known from XPath).
* During regular XPath evaluation, various ESXLT functions are
available within their namespace when using libxslt 1.1.26 or later.
* Support passing a readily configured logger instance into
``PyErrorLog``, instead of a logger name.
* On serialisation, the new ``doctype`` parameter can be used to
override the DOCTYPE (internal subset) of the document.
* New parameter ``output_parent`` to ``XSLTExtension.apply_templates()``
to append the resulting content directly to an output element.
* ``XSLTExtension.process_children()`` to process the content of the
XSLT extension element itself.
* ISO-Schematron support based on the de-facto Schematron reference
'skeleton implementation'.
* XSLT objects now take XPath object as ``__call__`` stylesheet
parameters.
* Enable path caching in ElementPath (``el.find*()``) to avoid parsing
overhead.
* Setting the value of a namespaced attribute always uses a prefixed
namespace instead of the default namespace even if both declare the
same namespace URI. This avoids serialisation problems when an
attribute from a default namespace is set on an element from a
different namespace.
* XSLT extension elements: support for XSLT context nodes other than
elements: document root, comments, processing instructions.
* Support for strings (in addition to Elements) in node-sets returned
by extension functions.
* Forms that lack an ``action`` attribute default to the base URL of
the document on submit.
* XPath attribute result strings have an ``attrname`` property.
* Namespace URIs get validated against RFC 3986 at the API level
(required by the XML namespace specification).
* Target parsers show their target object in the ``.target`` property
(compatible with ElementTree).
Bugs fixed
----------
* API is hardened against invalid proxy instances to prevent crashes
due to incorrectly instantiated Element instances.
* Prevent crash when instantiating ``CommentBase`` and friends.
* Export ElementTree compatible XML parser class as
``XMLTreeBuilder``, as it is called in ET 1.2.
* ObjectifiedDataElements in lxml.objectify were not hashable. They
now use the hash value of the underlying Python value (string,
number, etc.) to which they compare equal.
* Parsing broken fragments in lxml.html could fail if the fragment
contained an orphaned closing '</div>' tag.
* Using XSLT extension elements around the root of the output document
crashed.
* ``lxml.cssselect`` did not distinguish between ``x[attr="val"]`` and
``x [attr="val"]`` (with a space). The latter now matches the
attribute independent of the element.
* Rewriting multiple links inside of HTML text content could end up
replacing unrelated content as replacements could impact the
reported position of subsequent matches. Modifications are now
simplified by letting the ``iterlinks()`` generator in ``lxml.html``
return links in reversed order if they appear inside the same text
node. Thus, replacements and link-internal modifications no longer
change the position of links reported afterwards.
* The ``.value`` attribute of ``textarea`` elements in lxml.html did
not represent the complete raw value (including child tags etc.). It
now serialises the complete content on read and replaces the
complete content by a string on write.
* Target parser didn't call ``.close()`` on the target object if
parsing failed. Now it is guaranteed that ``.close()`` will be
called after parsing, regardless of the outcome.
Other changes
-------------
* Official support for Python 3.1.2 and later.
* Static MS Windows builds can now download their dependencies
themselves.
* ``Element.attrib`` no longer uses a cyclic reference back to its
Element object. It therefore no longer requires the garbage
collector to clean up.
* Static builds include libiconv, in addition to libxml2 and libxslt.
2.2.8 (2010-09-02)
==================
Bugs fixed
----------
* Crash in newer libxml2 versions when moving elements between
documents that had attributes on replaced XInclude nodes.
* Import fix for urljoin in Python 3.1+.
2.2.7 (2010-07-24)
==================
Bugs fixed
----------
* Crash in XSLT when generating text-only result documents with a
stylesheet created in a different thread.
2.2.6 (2010-03-02)
==================
Bugs fixed
----------
* Fixed several Python 3 regressions by building with Cython 0.11.3.
2.2.5 (2010-02-28)
==================
Features added
--------------
* Support for running XSLT extension elements on the input root node
(e.g. in a template matching on "/").
Bugs fixed
----------
* Crash in XPath evaluation when reading smart strings from a document
other than the original context document.
* Support recent versions of html5lib by not requiring its
``XHTMLParser`` in ``htmlparser.py`` anymore.
* Manually instantiating the custom element classes in
``lxml.objectify`` could crash.
* Invalid XML text characters were not rejected by the API when they
appeared in unicode strings directly after non-ASCII characters.
* lxml.html.open_http_urllib() did not work in Python 3.
* The functions ``strip_tags()`` and ``strip_elements()`` in
``lxml.etree`` did not remove all occurrences of a tag in all cases.
* Crash in XSLT extension elements when the XSLT context node is not
an element.
2.2.4 (2009-11-11)
==================
Bugs fixed
----------
* Static build of libxml2/libxslt was broken.
2.2.3 (2009-10-30)
==================
Features added
--------------
Bugs fixed
----------
* The ``resolve_entities`` option did not work in the incremental feed
parser.
* Looking up and deleting attributes without a namespace could hit a
namespaced attribute of the same name instead.
* Late errors during calls to ``SubElement()`` (e.g. attribute related
ones) could leave a partially initialised element in the tree.
* Modifying trees that contain parsed entity references could result
in an infinite loop.
* ObjectifiedElement.__setattr__ created an empty-string child element when the
attribute value was rejected as a non-unicode/non-ascii string
* Syntax errors in ``lxml.cssselect`` could result in misleading error
messages.
* Invalid syntax in CSS expressions could lead to an infinite loop in
the parser of ``lxml.cssselect``.
* CSS special character escapes were not properly handled in
``lxml.cssselect``.
* CSS Unicode escapes were not properly decoded in ``lxml.cssselect``.
* Select options in HTML forms that had no explicit ``value``
attribute were not handled correctly. The HTML standard dictates
that their value is defined by their text content. This is now
supported by lxml.html.
* XPath raised a TypeError when finding CDATA sections. This is now
fully supported.
* Calling ``help(lxml.objectify)`` didn't work at the prompt.
* The ``ElementMaker`` in lxml.objectify no longer defines the default
namespaces when annotation is disabled.
* Feed parser failed to honout the 'recover' option on parse errors.
* Diverting the error logging to Python's logging system was broken.
Other changes
-------------
2.2.2 (2009-06-21)
==================
Features added
--------------
* New helper functions ``strip_attributes()``, ``strip_elements()``,
``strip_tags()`` in lxml.etree to remove attributes/subtrees/tags
from a subtree.
Bugs fixed
----------
* Namespace cleanup on subtree insertions could result in missing
namespace declarations (and potentially crashes) if the element
defining a namespace was deleted and the namespace was not used by
the top element of the inserted subtree but only in deeper subtrees.
* Raising an exception from a parser target callback didn't always
terminate the parser.
* Only {true, false, 1, 0} are accepted as the lexical representation for
BoolElement ({True, False, T, F, t, f} not any more), restoring lxml <= 2.0
behaviour.
Other changes
-------------
2.2.1 (2009-06-02)
==================
Features added
--------------
* Injecting default attributes into a document during XML Schema