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- ==============
- lxml changelog
- ==============
- 3.3.6 (2014-08-28)
- ==================
- Bugs fixed
- ----------
- * Prevent tree cycle creation when adding Elements as siblings.
- * LP#1361948: crash when deallocating Element siblings without parent.
- * LP#1354652: crash when traversing internally loaded documents in XSLT
- extension functions.
- 3.3.5 (2014-04-18)
- ==================
- Bugs fixed
- ----------
- * HTML cleaning could fail to strip javascript links that mix control
- characters into the link scheme.
- 3.3.4 (2014-04-03)
- ==================
- Features added
- --------------
- * Source line numbers above 65535 are available on Elements when
- using libxml2 2.9 or later.
- Bugs fixed
- ----------
- * ``lxml.html.fragment_fromstring()`` failed for bytes input in Py3.
- Other changes
- -------------
- 3.3.3 (2014-03-04)
- ==================
- Bugs fixed
- ----------
- * LP#1287118: Crash when using Element subtypes with ``__slots__``.
- Other changes
- -------------
- * The internal classes ``_LogEntry`` and ``_Attrib`` can no longer be
- subclassed from Python code.
- 3.3.2 (2014-02-26)
- ==================
- Bugs fixed
- ----------
- * The properties ``resolvers`` and ``version``, as well as the methods
- ``set_element_class_lookup()`` and ``makeelement()``, were lost from
- ``iterparse`` objects in 3.3.0.
- * LP#1222132: instances of ``XMLSchema``, ``Schematron`` and ``RelaxNG``
- did not clear their local ``error_log`` before running a validation.
- * LP#1238500: lxml.doctestcompare mixed up "expected" and "actual" in
- attribute values.
- * Some file I/O tests were failing in MS-Windows due to non-portable temp
- file usage. Initial patch by Gabi Davar.
- * LP#910014: duplicate IDs in a document were not reported by DTD validation.
- * LP#1185332: ``tostring(method="html")`` did not use HTML serialisation
- semantics for trailing tail text. Initial patch by Sylvain Viollon.
- * LP#1281139: ``.attrib`` value of Comments lost its mutation methods
- in 3.3.0. Even though it is empty and immutable, it should still
- provide the same interface as that returned for Elements.
- 3.3.1 (2014-02-12)
- ==================
- Features added
- --------------
- Bugs fixed
- ----------
- * LP#1014290: HTML documents parsed with ``parser.feed()`` failed to find
- elements during tag iteration.
- * LP#1273709: Building in PyPy failed due to missing support for
- ``PyUnicode_Compare()`` and ``PyByteArray_*()`` in PyPy's C-API.
- * LP#1274413: Compilation in MSVC failed due to missing "stdint.h" standard
- header file.
- * LP#1274118: iterparse() failed to parse BOM prefixed files.
- Other changes
- -------------
- 3.3.0 (2014-01-26)
- ==================
- Features added
- --------------
- Bugs fixed
- ----------
- * The heuristic that distinguishes file paths from URLs was tightened
- to produce less false negatives.
- Other changes
- -------------
- 3.3.0beta5 (2014-01-18)
- =======================
- Features added
- --------------
- * The PEP 393 unicode parsing support gained a fallback for wchar strings
- which might still be somewhat common on Windows systems.
- Bugs fixed
- ----------
- * Several error handling problems were fixed throughout the code base that
- could previously lead to exceptions being silently swallowed or not
- properly reported.
- * The C-API function ``appendChild()`` is now deprecated as it does not
- propagate exceptions (its return type is ``void``). The new function
- ``appendChildToElement()`` was added as a safe replacement.
- * Passing a string into ``fromstringlist()`` raises an exception instead of
- parsing the string character by character.
- Other changes
- -------------
- * Document cleanup code was simplified using the new GC features in
- Cython 0.20.
- 3.3.0beta4 (2014-01-12)
- =======================
- Features added
- --------------
- Bugs fixed
- ----------
- * The (empty) value returned by the ``attrib`` property of Entity and Comment
- objects was mutable.
- * Element class lookup wasn't available for the new pull parsers or when using
- a custom parser target.
- * Setting Element attributes on instantiation with both the ``attrib`` argument
- and keyword arguments could modify the mapping passed as ``attrib``.
- * LP#1266171: DTDs instantiated from internal/external subsets (i.e. through
- the docinfo property) lost their attribute declarations.
- Other changes
- -------------
- * Built with Cython 0.20pre (gitrev 012ae82eb) to prepare support for
- Python 3.4.
- 3.3.0beta3 (2014-01-02)
- =======================
- Features added
- --------------
- * Unicode string parsing was optimised for Python 3.3 (PEP 393).
- Bugs fixed
- ----------
- * HTML parsing of Unicode strings could misdecode the input on some platforms.
- * Crash in xmlfile() when closing open elements out of order in an error case.
- Other changes
- -------------
- 3.3.0beta2 (2013-12-20)
- =======================
- Features added
- --------------
- * ``iterparse()`` supports the ``recover`` option.
- Bugs fixed
- ----------
- * Crash in ``iterparse()`` for HTML parsing.
- * Crash in target parsing with attributes.
- Other changes
- -------------
- * The safety check in the read-only tree implementation (e.g. used by
- ``PythonElementClassLookup``) raises a more appropriate ``ReferenceError``
- for illegal access after tree disposal instead of an ``AssertionError``.
- This should only impact test code that specifically checks the original
- behaviour.
- 3.3.0beta1 (2013-12-12)
- =======================
- Features added
- --------------
- * New option ``handle_failures`` in ``make_links_absolute()`` and
- ``resolve_base_href()`` (lxml.html) that enables ignoring or
- discarding links that fail to parse as URLs.
- * New parser classes ``XMLPullParser`` and ``HTMLPullParser`` for
- incremental parsing, as implemented for ElementTree in Python 3.4.
- * ``iterparse()`` enables recovery mode by default for HTML parsing
- (``html=True``).
- Bugs fixed
- ----------
- * LP#1255132: crash when trying to run validation over non-Element (e.g.
- comment or PI).
- * Error messages in the log and in exception messages that originated
- from libxml2 could accidentally be picked up from preceding warnings
- instead of the actual error.
- * The ``ElementMaker`` in lxml.objectify did not accept a dict as
- argument for adding attributes to the element it's building. This
- works as in lxml.builder now.
- * 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, instead of running into an infinite
- loop.
- * LP#1206077: htmldiff discarded whitespace from the output.
- * Compressed plain-text serialisation to file-like objects was broken.
- * lxml.html.formfill: Fix textarea form filling.
- The textarea used to be cleared before the new content was set,
- which removed the name attribute.
- Other changes
- -------------
- * Some basic API classes use freelists internally for faster
- instantiation. This can speed up some ``iterparse()`` scenarios,
- for example.
- * ``iterparse()`` was rewritten to use the new ``*PullParser``
- classes internally instead of being a parser itself.
- 3.2.5 (2014-01-02)
- ==================
- Features added
- --------------
- Bugs fixed
- ----------
- * Crash in xmlfile() when closing open elements out of order in an error case.
- * Crash in target parsing with attributes.
- * LP#1255132: crash when trying to run validation over non-Element (e.g.
- comment or PI).
- Other changes
- -------------
- 3.2.4 (2013-11-07)
- ==================
- Features added
- --------------
- Bugs fixed
- ----------
- * Memory leak when creating an XPath evaluator in a thread.
- * 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
- -------------
- 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
- 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
- -------------
- 2.2 (2009-03-21)
- ================
- Features added
- --------------
- * Support for ``standalone`` flag in XML declaration through
- ``tree.docinfo.standalone`` and by passing ``standalone=True/False``
- on serialisation.
- Bugs fixed
- ----------
- * Crash when parsing an XML Schema with external imports from a
- filename.
- 2.2beta4 (2009-02-27)
- =====================
- Features added
- --------------
- * Support strings and instantiable Element classes as child arguments
- to the constructor of custom Element classes.
- * GZip compression support for serialisation to files and file-like
- objects.
- Bugs fixed
- ----------
- * Deep-copying an ElementTree copied neither its sibling PIs and
- comments nor its internal/external DTD subsets.
- * Soupparser failed on broken attributes without values.
- * Crash in XSLT when overwriting an already defined attribute using
- ``xsl:attribute``.
- * Crash bug in exception handling code under Python 3. This was due
- to a problem in Cython, not lxml itself.
- * ``lxml.html.FormElement._name()`` failed for non top-level forms.
- * ``TAG`` special attribute in constructor of custom Element classes
- was evaluated incorrectly.
- Other changes
- -------------
- * Official support for Python 3.0.1.
- * ``Element.findtext()`` now returns an empty string instead of None
- for Elements without text content.
- 2.2beta3 (2009-02-17)
- =====================
- Features added
- --------------
- * ``XSLT.strparam()`` class method to wrap quoted string parameters
- that require escaping.
- Bugs fixed
- ----------
- * Memory leak in XPath evaluators.
- * Crash when parsing indented XML in one thread and merging it with
- other documents parsed in another thread.
- * Setting the ``base`` attribute in ``lxml.objectify`` from a unicode
- string failed.
- * Fixes following changes in Python 3.0.1.
- * Minor fixes for Python 3.
- Other changes
- -------------
- * The global error log (which is copied into the exception log) is now
- local to a thread, which fixes some race conditions.
- * More robust error handling on serialisation.
- 2.2beta2 (2009-01-25)
- =====================
- Bugs fixed
- ----------
- * Potential memory leak on exception handling. This was due to a
- problem in Cython, not lxml itself.
- * ``iter_links`` (and related link-rewriting functions) in
- ``lxml.html`` would interpret CSS like ``url("link")`` incorrectly
- (treating the quotation marks as part of the link).
- * Failing import on systems that have an ``io`` module.
- 2.1.5 (2009-01-06)
- ==================
- Bugs fixed
- ----------
- * Potential memory leak on exception handling. This was due to a
- problem in Cython, not lxml itself.
- * Failing import on systems that have an ``io`` module.
- 2.2beta1 (2008-12-12)
- =====================
- Features added
- --------------
- * Allow ``lxml.html.diff.htmldiff`` to accept Element objects, not
- just HTML strings.
- Bugs fixed
- ----------
- * Crash when using an XPath evaluator in multiple threads.
- * Fixed missing whitespace before ``Link:...`` in ``lxml.html.diff``.
- Other changes
- -------------
- * Export ``lxml.html.parse``.
- 2.1.4 (2008-12-12)
- ==================
- Bugs fixed
- ----------
- * Crash when using an XPath evaluator in multiple threads.
- 2.0.11 (2008-12-12)
- ===================
- Bugs fixed
- ----------
- * Crash when using an XPath evaluator in multiple threads.
- 2.2alpha1 (2008-11-23)
- ======================
- Features added
- --------------
- * Support for XSLT result tree fragments in XPath/XSLT extension
- functions.
- * QName objects have new properties ``namespace`` and ``localname``.
- * New options for exclusive C14N and C14N without comments.
- * Instantiating a custom Element classes creates a new Element.
- Bugs fixed
- ----------
- * XSLT didn't inherit the parse options of the input document.
- * 0-bytes could slip through the API when used inside of Unicode
- strings.
- * With ``lxml.html.clean.autolink``, links with balanced parenthesis,
- that end in a parenthesis, will be linked in their entirety (typical
- with Wikipedia links).
- Other changes
- -------------
- 2.1.3 (2008-11-17)
- ==================
- Features added
- --------------
- Bugs fixed
- ----------
- * Ref-count leaks when lxml enters a try-except statement while an
- outside exception lives in sys.exc_*(). This was due to a problem in
- Cython, not lxml itself.
- * Parser Unicode decoding errors could get swallowed by other
- exceptions.
- * Name/import errors in some Python modules.
- * Internal DTD subsets that did not specify a system or public ID were
- not serialised and did not appear in the docinfo property of
- ElementTrees.
- * Fix a pre-Py3k warning when parsing from a gzip file in Py2.6.
- * Test suite fixes for libxml2 2.7.
- * Resolver.resolve_string() did not work for non-ASCII byte strings.
- * Resolver.resolve_file() was broken.
- * Overriding the parser encoding didn't work for many encodings.
- Other changes
- -------------
- 2.0.10 (2008-11-17)
- ===================
- Bugs fixed
- ----------
- * Ref-count leaks when lxml enters a try-except statement while an
- outside exception lives in sys.exc_*(). This was due to a problem in
- Cython, not lxml itself.
- 2.1.2 (2008-09-05)
- ==================
- Features added
- --------------
- * lxml.etree now tries to find the absolute path name of files when
- parsing from a file-like object. This helps custom resolvers when
- resolving relative URLs, as lixbml2 can prepend them with the path
- of the source document.
- Bugs fixed
- ----------
- * Memory problem when passing documents between threads.
- * Target parser did not honour the ``recover`` option and raised an
- exception instead of calling ``.close()`` on the target.
- Other changes
- -------------
- 2.0.9 (2008-09-05)
- ==================
- Bugs fixed
- ----------
- * Memory problem when passing documents between threads.
- * Target parser did not honour the ``recover`` option and raised an
- exception instead of calling ``.close()`` on the target.
- 2.1.1 (2008-07-24)
- ==================
- Features added
- --------------
- Bugs fixed
- ----------
- * Crash when parsing XSLT stylesheets in a thread and using them in
- another.
- * Encoding problem when including text with ElementInclude under
- Python 3.
- Other changes
- -------------
- 2.0.8 (2008-07-24)
- ==================
- Features added
- --------------
- * ``lxml.html.rewrite_links()`` strips links to work around documents
- with whitespace in URL attributes.
- Bugs fixed
- ----------
- * Crash when parsing XSLT stylesheets in a thread and using them in
- another.
- * CSS selector parser dropped remaining expression after a function
- with parameters.
- Other changes
- -------------
- 2.1 (2008-07-09)
- ================
- Features added
- --------------
- * Smart strings can be switched off in XPath (``smart_strings``
- keyword option).
- * ``lxml.html.rewrite_links()`` strips links to work around documents
- with whitespace in URL attributes.
- Bugs fixed
- ----------
- * Custom resolvers were not used for XMLSchema includes/imports and
- XInclude processing.
- * CSS selector parser dropped remaining expression after a function
- with parameters.
- Other changes
- -------------
- * ``objectify.enableRecursiveStr()`` was removed, use
- ``objectify.enable_recursive_str()`` instead
- * Speed-up when running XSLTs on documents from other threads
- 2.0.7 (2008-06-20)
- ==================
- Features added
- --------------
- * Pickling ``ElementTree`` objects in lxml.objectify.
- Bugs fixed
- ----------
- * Descending dot-separated classes in CSS selectors were not resolved
- correctly.
- * ``ElementTree.parse()`` didn't handle target parser result.
- * Potential threading problem in XInclude.
- * Crash in Element class lookup classes when the __init__() method of
- the super class is not called from Python subclasses.
- Other changes
- -------------
- * Non-ASCII characters in attribute values are no longer escaped on
- serialisation.
- 2.1beta3 (2008-06-19)
- =====================
- Features added
- --------------
- * Major overhaul of ``tools/xpathgrep.py`` script.
- * Pickling ``ElementTree`` objects in lxml.objectify.
- * Support for parsing from file-like objects that return unicode
- strings.
- * New function ``etree.cleanup_namespaces(el)`` that removes unused
- namespace declarations from a (sub)tree (experimental).
- * XSLT results support the buffer protocol in Python 3.
- * Polymorphic functions in ``lxml.html`` that accept either a tree or
- a parsable string will return either a UTF-8 encoded byte string, a
- unicode string or a tree, based on the type of the input.
- Previously, the result was always a byte string or a tree.
- * Support for Python 2.6 and 3.0 beta.
- * File name handling now uses a heuristic to convert between byte
- strings (usually filenames) and unicode strings (usually URLs).
- * Parsing from a plain file object frees the GIL under Python 2.x.
- * Running ``iterparse()`` on a plain file (or filename) frees the GIL
- on reading under Python 2.x.
- * Conversion functions ``html_to_xhtml()`` and ``xhtml_to_html()`` in
- lxml.html (experimental).
- * Most features in lxml.html work for XHTML namespaced tag names
- (experimental).
- Bugs fixed
- ----------
- * ``ElementTree.parse()`` didn't handle target parser result.
- * Crash in Element class lookup classes when the __init__() method of
- the super class is not called from Python subclasses.
- * A number of problems related to unicode/byte string conversion of
- filenames and error messages were fixed.
- * Building on MacOS-X now passes the "flat_namespace" option to the C
- compiler, which reportedly prevents build quirks and crashes on this
- platform.
- * Windows build was broken.
- * Rare crash when serialising to a file object with certain encodings.
- Other changes
- -------------
- * Non-ASCII characters in attribute values are no longer escaped on
- serialisation.
- * Passing non-ASCII byte strings or invalid unicode strings as .tag,
- namespaces, etc. will result in a ValueError instead of an
- AssertionError (just like the tag well-formedness check).
- * Up to several times faster attribute access (i.e. tree traversal) in
- lxml.objectify.
- 2.0.6 (2008-05-31)
- ==================
- Features added
- --------------
- Bugs fixed
- ----------
- * Incorrect evaluation of ``el.find("tag[child]")``.
- * Windows build was broken.
- * Moving a subtree from a document created in one thread into a
- document of another thread could crash when the rest of the source
- document is deleted while the subtree is still in use.
- * Rare crash when serialising to a file object with certain encodings.
- Other changes
- -------------
- * lxml should now build without problems on MacOS-X.
- 2.1beta2 (2008-05-02)
- =====================
- Features added
- --------------
- * All parse functions in lxml.html take a ``parser`` keyword argument.
- * lxml.html has a new parser class ``XHTMLParser`` and a module
- attribute ``xhtml_parser`` that provide XML parsers that are
- pre-configured for the lxml.html package.
- Bugs fixed
- ----------
- * Moving a subtree from a document created in one thread into a
- document of another thread could crash when the rest of the source
- document is deleted while the subtree is still in use.
- * Passing an nsmap when creating an Element will no longer strip
- redundantly defined namespace URIs. This prevented the definition
- of more than one prefix for a namespace on the same Element.
- Other changes
- -------------
- * If the default namespace is redundantly defined with a prefix on the
- same Element, the prefix will now be preferred for subelements and
- attributes. This allows users to work around a problem in libxml2
- where attributes from the default namespace could serialise without
- a prefix even when they appear on an Element with a different
- namespace (i.e. they would end up in the wrong namespace).
- 2.0.5 (2008-05-01)
- ==================
- Features added
- --------------
- Bugs fixed
- ----------
- * Resolving to a filename in custom resolvers didn't work.
- * lxml did not honour libxslt's second error state "STOPPED", which
- let some XSLT errors pass silently.
- * Memory leak in Schematron with libxml2 >= 2.6.31.
- Other changes
- -------------
- 2.1beta1 (2008-04-15)
- =====================
- Features added
- --------------
- * Error logging in Schematron (requires libxml2 2.6.32 or later).
- * Parser option ``strip_cdata`` for normalising or keeping CDATA
- sections. Defaults to ``True`` as before, thus replacing CDATA
- sections by their text content.
- * ``CDATA()`` factory to wrap string content as CDATA section.
- Bugs fixed
- ----------
- * Resolving to a filename in custom resolvers didn't work.
- * lxml did not honour libxslt's second error state "STOPPED", which
- let some XSLT errors pass silently.
- * Memory leak in Schematron with libxml2 >= 2.6.31.
- * lxml.etree accepted non well-formed namespace prefix names.
- Other changes
- -------------
- * Major cleanup in internal ``moveNodeToDocument()`` function, which
- takes care of namespace cleanup when moving elements between
- different namespace contexts.
- * New Elements created through the ``makeelement()`` method of an HTML
- parser or through lxml.html now end up in a new HTML document
- (doctype HTML 4.01 Transitional) instead of a generic XML document.
- This mostly impacts the serialisation and the availability of a DTD
- context.
- 2.0.4 (2008-04-13)
- ==================
- Features added
- --------------
- Bugs fixed
- ----------
- * Hanging thread in conjunction with GTK threading.
- * Crash bug in iterparse when moving elements into other documents.
- * HTML elements' ``.cssselect()`` method was broken.
- * ``ElementTree.find*()`` didn't accept QName objects.
- Other changes
- -------------
- 2.1alpha1 (2008-03-27)
- ======================
- Features added
- --------------
- * New event types 'comment' and 'pi' in ``iterparse()``.
- * ``XSLTAccessControl`` instances have a property ``options`` that
- returns a dict of access configuration options.
- * Constant instances ``DENY_ALL`` and ``DENY_WRITE`` on
- ``XSLTAccessControl`` class.
- * Extension elements for XSLT (experimental!)
- * ``Element.base`` property returns the xml:base or HTML base URL of
- an Element.
- * ``docinfo.URL`` property is writable.
- Bugs fixed
- ----------
- * Default encoding for plain text serialisation was different from
- that of XML serialisation (UTF-8 instead of ASCII).
- Other changes
- -------------
- * Minor API speed-ups.
- * The benchmark suite now uses tail text in the trees, which makes the
- absolute numbers incomparable to previous results.
- * Generating the HTML documentation now requires Pygments_, which is
- used to enable syntax highlighting for the doctest examples.
- .. _Pygments: http://pygments.org/
- Most long-time deprecated functions and methods were removed:
- - ``etree.clearErrorLog()``, use ``etree.clear_error_log()``
- - ``etree.useGlobalPythonLog()``, use
- ``etree.use_global_python_log()``
- - ``etree.ElementClassLookup.setFallback()``, use
- ``etree.ElementClassLookup.set_fallback()``
- - ``etree.getDefaultParser()``, use ``etree.get_default_parser()``
- - ``etree.setDefaultParser()``, use ``etree.set_default_parser()``
- - ``etree.setElementClassLookup()``, use
- ``etree.set_element_class_lookup()``
- Note that ``parser.setElementClassLookup()`` has not been removed
- yet, although ``parser.set_element_class_lookup()`` should be used
- instead.
- - ``xpath_evaluator.registerNamespace()``, use
- ``xpath_evaluator.register_namespace()``
- - ``xpath_evaluator.registerNamespaces()``, use
- ``xpath_evaluator.register_namespaces()``
- - ``objectify.setPytypeAttributeTag``, use
- ``objectify.set_pytype_attribute_tag``
- - ``objectify.setDefaultParser()``, use
- ``objectify.set_default_parser()``
- 2.0.3 (2008-03-26)
- ==================
- Features added
- --------------
- * soupparser.parse() allows passing keyword arguments on to
- BeautifulSoup.
- * ``fromstring()`` method in ``lxml.html.soupparser``.
- Bugs fixed
- ----------
- * ``lxml.html.diff`` didn't treat empty tags properly (e.g.,
- ``<br>``).
- * Handle entity replacements correctly in target parser.
- * Crash when using ``iterparse()`` with XML Schema validation.
- * The BeautifulSoup parser (soupparser.py) did not replace entities,
- which made them turn up in text content.
- * Attribute assignment of custom PyTypes in objectify could fail to
- correctly serialise the value to a string.
- Other changes
- -------------
- * ``lxml.html.ElementSoup`` was replaced by a new module
- ``lxml.html.soupparser`` with a more consistent API. The old module
- remains for compatibility with ElementTree's own ElementSoup module.
- * Setting the XSLT_CONFIG and XML2_CONFIG environment variables at
- build time will let setup.py pick up the ``xml2-config`` and
- ``xslt-config`` scripts from the supplied path name.
- * Passing ``--with-xml2-config=/path/to/xml2-config`` to setup.py will
- override the ``xml2-config`` script that is used to determine the C
- compiler options. The same applies for the ``--with-xslt-config``
- option.
- 2.0.2 (2008-02-22)
- ==================
- Features added
- --------------
- * Support passing ``base_url`` to file parser functions to override
- the filename of the file(-like) object.
- Bugs fixed
- ----------
- * The prefix for objectify's pytype namespace was missing from the set
- of default prefixes.
- * Memory leak in Schematron (fixed only for libxml2 2.6.31+).
- * Error type names in RelaxNG were reported incorrectly.
- * Slice deletion bug fixed in objectify.
- Other changes
- -------------
- * Enabled doctests for some Python modules (especially ``lxml.html``).
- * Add a ``method`` argument to ``lxml.html.tostring()``
- (``method="xml"`` for XHTML output).
- * Make it clearer that methods like ``lxml.html.fromstring()`` take a
- ``base_url`` argument.
- 2.0.1 (2008-02-13)
- ==================
- Features added
- --------------
- * Child iteration in ``lxml.pyclasslookup``.
- * Loads of new docstrings reflect the signature of functions and
- methods to make them visible in API docs and ``help()``
- Bugs fixed
- ----------
- * The module ``lxml.html.builder`` was duplicated as
- ``lxml.htmlbuilder``
- * Form elements would return None for ``form.fields.keys()`` if there
- was an unnamed input field. Now unnamed input fields are completely
- ignored.
- * Setting an element slice in objectify could insert slice-overlapping
- elements at the wrong position.
- Other changes
- -------------
- * The generated API documentation was cleaned up and disburdened from
- non-public classes etc.
- * The previously public module ``lxml.html.setmixin`` was renamed to
- ``lxml.html._setmixin`` as it is not an official part of lxml. If
- you want to use it, feel free to copy it over to your own source
- base.
- * Passing ``--with-xslt-config=/path/to/xslt-config`` to setup.py will
- override the ``xslt-config`` script that is used to determine the C
- compiler options.
- 2.0 (2008-02-01)
- ================
- Features added
- --------------
- * Passing the ``unicode`` type as ``encoding`` to ``tostring()`` will
- serialise to unicode. The ``tounicode()`` function is now
- deprecated.
- * ``XMLSchema()`` and ``RelaxNG()`` can parse from StringIO.
- * ``makeparser()`` function in ``lxml.objectify`` to create a new
- parser with the usual objectify setup.
- * Plain ASCII XPath string results are no longer forced into unicode
- objects as in 2.0beta1, but are returned as plain strings as before.
- * All XPath string results are 'smart' objects that have a
- ``getparent()`` method to retrieve their parent Element.
- * ``with_tail`` option in serialiser functions.
- * More accurate exception messages in validator creation.
- * Parse-time XML schema validation (``schema`` parser keyword).
- * XPath string results of the ``text()`` function and attribute
- selection make their Element container accessible through a
- ``getparent()`` method. As a side-effect, they are now always
- unicode objects (even ASCII strings).
- * ``XSLT`` objects are usable in any thread - at the cost of a deep
- copy if they were not created in that thread.
- * Invalid entity names and character references will be rejected by
- the ``Entity()`` factory.
- * ``entity.text`` returns the textual representation of the entity,
- e.g. ``&``.
- * New properties ``position`` and ``code`` on ParseError exception (as
- in ET 1.3)
- * Rich comparison of ``element.attrib`` proxies.
- * ElementTree compatible TreeBuilder class.
- * Use default prefixes for some common XML namespaces.
- * ``lxml.html.clean.Cleaner`` now allows for a ``host_whitelist``, and
- two overridable methods: ``allow_embedded_url(el, url)`` and the
- more general ``allow_element(el)``.
- * Extended slicing of Elements as in ``element[1:-1:2]``, both in
- etree and in objectify
- * Resolvers can now provide a ``base_url`` keyword argument when
- resolving a document as string data.
- * When using ``lxml.doctestcompare`` you can give the doctest option
- ``NOPARSE_MARKUP`` (like ``# doctest: +NOPARSE_MARKUP``) to suppress
- the special checking for one test.
- * Separate ``feed_error_log`` property for the feed parser interface.
- The normal parser interface and ``iterparse`` continue to use
- ``error_log``.
- * The normal parsers and the feed parser interface are now separated
- and can be used concurrently on the same parser instance.
- * ``fromstringlist()`` and ``tostringlist()`` functions as in
- ElementTree 1.3
- * ``iterparse()`` accepts an ``html`` boolean keyword argument for
- parsing with the HTML parser (note that this interface may be
- subject to change)
- * Parsers accept an ``encoding`` keyword argument that overrides the encoding
- of the parsed documents.
- * New C-API function ``hasChild()`` to test for children
- * ``annotate()`` function in objectify can annotate with Python types and XSI
- types in one step. Accompanied by ``xsiannotate()`` and ``pyannotate()``.
- * ``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
- http://effbot.org/elementtree/elementtree-xmlparser.htm
- * ElementTree-like feed parser interface on XMLParser and HTMLParser
- (``feed()`` and ``close()`` methods)
- * Reimplemented ``objectify.E`` for better performance and improved
- integration with objectify. Provides extended type support based on
- registered PyTypes.
- * XSLT objects now support deep copying
- * New ``makeSubElement()`` C-API function that allows creating a new
- subelement straight with text, tail and attributes.
- * XPath extension functions can now access the current context node
- (``context.context_node``) and use a context dictionary
- (``context.eval_context``) from the context provided in their first
- parameter
- * HTML tag soup parser based on BeautifulSoup in ``lxml.html.ElementSoup``
- * New module ``lxml.doctestcompare`` by Ian Bicking for writing simplified
- doctests based on XML/HTML output. Use by importing ``lxml.usedoctest`` or
- ``lxml.html.usedoctest`` from within a doctest.
- * New module ``lxml.cssselect`` by Ian Bicking for selecting Elements with CSS
- selectors.
- * New package ``lxml.html`` written by Ian Bicking for advanced HTML
- treatment.
- * Namespace class setup is now local to the ``ElementNamespaceClassLookup``
- instance and no longer global.
- * Schematron validation (incomplete in libxml2)
- * Additional ``stringify`` argument to ``objectify.PyType()`` takes a
- conversion function to strings to support setting text values from arbitrary
- types.
- * Entity support through an ``Entity`` factory and element classes. XML
- parsers now have a ``resolve_entities`` keyword argument that can be set to
- False to keep entities in the document.
- * ``column`` field on error log entries to accompany the ``line`` field
- * Error specific messages in XPath parsing and evaluation
- NOTE: for evaluation errors, you will now get an XPathEvalError instead of
- an XPathSyntaxError. To catch both, you can except on ``XPathError``
- * The regular expression functions in XPath now support passing a node-set
- instead of a string
- * Extended type annotation in objectify: new ``xsiannotate()`` function
- * EXSLT RegExp support in standard XPath (not only XSLT)
- Bugs fixed
- ----------
- * Missing import in ``lxml.html.clean``.
- * Some Python 2.4-isms prevented lxml from building/running under
- Python 2.3.
- * XPath on ElementTrees could crash when selecting the virtual root
- node of the ElementTree.
- * Compilation ``--without-threading`` was buggy in alpha5/6.
- * Memory leak in the ``parse()`` function.
- * Minor bugs in XSLT error message formatting.
- * Result document memory leak in target parser.
- * Target parser failed to report comments.
- * In the ``lxml.html`` ``iter_links`` method, links in ``<object>``
- tags weren't recognized. (Note: plugin-specific link parameters
- still aren't recognized.) Also, the ``<embed>`` tag, though not
- standard, is now included in ``lxml.html.defs.special_inline_tags``.
- * Using custom resolvers on XSLT stylesheets parsed from a string
- could request ill-formed URLs.
- * With ``lxml.doctestcompare`` if you do ``<tag xmlns="...">`` in your
- output, it will then be namespace-neutral (before the ellipsis was
- treated as a real namespace).
- * AttributeError in feed parser on parse errors
- * XML feed parser setup problem
- * Type annotation for unicode strings in ``DataElement()``
- * 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
- * lxml.etree did not check tag/attribute names
- * The XML parser did not report undefined entities as error
- * The text in exceptions raised by XML parsers, validators and XPath
- evaluators now reports the first error that occurred instead of the last
- * Passing '' as XPath namespace prefix did not raise an error
- * Thread safety in XPath evaluators
- Other changes
- -------------
- * Exceptions carry only the part of the error log that is related to
- the operation that caused the error.
- * ``XMLSchema()`` and ``RelaxNG()`` now enforce passing the source
- file/filename through the ``file`` keyword argument.
- * The test suite now skips most doctests under Python 2.3.
- * ``make clean`` no longer removes the .c files (use ``make
- realclean`` instead)
- * Minor performance tweaks for Element instantiation and subelement
- creation
- * Various places in the XPath, XSLT and iteration APIs now require
- keyword-only arguments.
- * The argument order in ``element.itersiblings()`` was changed to
- match the order used in all other iteration methods. The second
- argument ('preceding') is now a keyword-only argument.
- * The ``getiterator()`` method on Elements and ElementTrees was
- reverted to return an iterator as it did in lxml 1.x. The ET API
- specification allows it to return either a sequence or an iterator,
- and it traditionally returned a sequence in ET and an iterator in
- lxml. However, it is now deprecated in favour of the ``iter()``
- method, which should be used in new code wherever possible.
- * The 'pretty printed' serialisation of ElementTree objects now
- inserts newlines at the root level between processing instructions,
- comments and the root tag.
- * A 'pretty printed' serialisation is now terminated with a newline.
- * Second argument to ``lxml.etree.Extension()`` helper is no longer
- required, third argument is now a keyword-only argument ``ns``.
- * ``lxml.html.tostring`` takes an ``encoding`` argument.
- * The module source files were renamed to "lxml.*.pyx", such as
- "lxml.etree.pyx". This was changed for consistency with the way
- Pyrex commonly handles package imports. The main effect is that
- classes now know about their fully qualified class name, including
- the package name of their module.
- * Keyword-only arguments in some API functions, especially in the
- parsers and serialisers.
- * Tag name validation in lxml.etree (and lxml.html) now distinguishes
- between HTML tags and XML tags based on the parser that was used to
- parse or create them. HTML tags no longer reject any non-ASCII
- characters in tag names but only spaces and the special characters
- ``<>&/"'``.
- * lxml.etree now emits a warning if you use XPath with libxml2 2.6.27
- (which can crash on certain XPath errors)
- * Type annotation in objectify now preserves the already annotated type by
- default to prevent loosing type information that is already there.
- * ``element.getiterator()`` returns a list, use ``element.iter()`` to retrieve
- an iterator (ElementTree 1.3 compatible behaviour)
- * objectify.PyType for None is now called "NoneType"
- * ``el.getiterator()`` renamed to ``el.iter()``, following ElementTree 1.3 -
- original name is still available as alias
- * In the public C-API, ``findOrBuildNodeNs()`` was replaced by the more
- generic ``findOrBuildNodeNsPrefix``
- * Major refactoring in XPath/XSLT extension function code
- * Network access in parsers disabled by default
- 1.3.6 (2007-10-29)
- ==================
- Bugs fixed
- ----------
- * Backported decref crash fix from 2.0
- * Well hidden free-while-in-use crash bug in ObjectPath
- Other changes
- -------------
- * The test suites now run ``gc.collect()`` in the ``tearDown()``
- methods. While this makes them take a lot longer to run, it also
- makes it easier to link a specific test to garbage collection
- problems that would otherwise appear in later tests.
- 1.3.5 (2007-10-22)
- ==================
- Features added
- --------------
- Bugs fixed
- ----------
- * lxml.etree could crash when adding more than 10000 namespaces to a
- document
- * lxml failed to serialise namespace declarations of elements other
- than the root node of a tree
- 1.3.4 (2007-08-30)
- ==================
- Features added
- --------------
- * The ``ElementMaker`` in ``lxml.builder`` now accepts the keyword arguments
- ``namespace`` and ``nsmap`` to set a namespace and nsmap for the Elements it
- creates.
- * The ``docinfo`` on ElementTree objects has new properties ``internalDTD``
- and ``externalDTD`` that return a DTD object for the internal or external
- subset of the document respectively.
- * Serialising an ElementTree now includes any internal DTD subsets that are
- part of the document, as well as comments and PIs that are siblings of the
- root node.
- Bugs fixed
- ----------
- * Parsing with the ``no_network`` option could fail
- Other changes
- -------------
- * lxml now raises a TagNameWarning about tag names containing ':' instead of
- an Error as 1.3.3 did. The reason is that a number of projects currently
- misuse the previous lack of tag name validation to generate namespace
- prefixes without declaring namespaces. Apart from the danger of generating
- broken XML this way, it also breaks most of the namespace-aware tools in
- XML, including XPath, XSLT and validation. lxml 1.3.x will continue to
- support this bug with a Warning, while lxml 2.0 will be strict about
- well-formed tag names (not only regarding ':').
- * Serialising an Element no longer includes its comment and PI siblings (only
- ElementTree serialisation includes them).
- 1.3.3 (2007-07-26)
- ==================
- Features added
- --------------
- * ElementTree compatible parser ``ETCompatXMLParser`` strips processing
- instructions and comments while parsing XML
- * Parsers now support stripping PIs (keyword argument 'remove_pis')
- * ``etree.fromstring()`` now supports parsing both HTML and XML, depending on
- the parser you pass.
- * Support ``base_url`` keyword argument in ``HTML()`` and ``XML()``
- Bugs fixed
- ----------
- * Parsing from Python Unicode strings failed on some platforms
- * ``Element()`` did not raise an exception on tag names containing ':'
- * ``Element.getiterator(tag)`` did not accept ``Comment`` and
- ``ProcessingInstruction`` as tags. It also accepts ``Element`` now.
- 1.3.2 (2007-07-03)
- ==================
- Features added
- --------------
- Bugs fixed
- ----------
- * "deallocating None" crash bug
- 1.3.1 (2007-07-02)
- ==================
- Features added
- --------------
- * objectify.DataElement now supports setting values from existing data
- elements (not just plain Python types) and reuses defined namespaces etc.
- * E-factory support for lxml.objectify (``objectify.E``)
- Bugs fixed
- ----------
- * Better way to prevent crashes in Element proxy cleanup code
- * objectify.DataElement didn't set up None value correctly
- * objectify.DataElement didn't check the value against the provided type hints
- * Reference-counting bug in ``Element.attrib.pop()``
- 1.3 (2007-06-24)
- ================
- Features added
- --------------
- * Module ``lxml.pyclasslookup`` module implements an Element class lookup
- scheme that can access the entire tree in read-only mode to help determining
- a suitable Element class
- * Parsers take a ``remove_comments`` keyword argument that skips over comments
- * ``parse()`` function in ``objectify``, corresponding to ``XML()`` etc.
- * ``Element.addnext(el)`` and ``Element.addprevious(el)`` methods to support
- adding processing instructions and comments around the root node
- * ``Element.attrib`` was missing ``clear()`` and ``pop()`` methods
- * Extended type annotation in objectify: cleaner annotation namespace setup
- plus new ``deannotate()`` function
- * Support for custom Element class instantiation in lxml.sax: passing a
- ``makeelement`` function to the ElementTreeContentHandler will reuse the
- lookup context of that function
- * '.' represents empty ObjectPath (identity)
- * ``Element.values()`` to accompany the existing ``.keys()`` and ``.items()``
- * ``collectAttributes()`` C-function to build a list of attribute
- keys/values/items for a libxml2 node
- * ``DTD`` validator class (like ``RelaxNG`` and ``XMLSchema``)
- * HTML generator helpers by Fredrik Lundh in ``lxml.htmlbuilder``
- * ``ElementMaker`` XML generator by Fredrik Lundh in ``lxml.builder.E``
- * Support for pickeling ``objectify.ObjectifiedElement`` objects to XML
- * ``update()`` method on Element.attrib
- * Optimised replacement for libxml2's _xmlReconsiliateNs(). This allows lxml
- a better handling of namespaces when moving elements between documents.
- Bugs fixed
- ----------
- * Removing Elements from a tree could make them loose their namespace
- declarations
- * ``ElementInclude`` didn't honour base URL of original document
- * Replacing the children slice of an Element would cut off the tails of the
- original children
- * ``Element.getiterator(tag)`` did not accept ``Comment`` and
- ``ProcessingInstruction`` as tags
- * API functions now check incoming strings for XML conformity. Zero bytes or
- low ASCII characters are no longer accepted (AssertionError).
- * XSLT parsing failed to pass resolver context on to imported documents
- * passing '' as namespace prefix in nsmap could be passed through to libxml2
- * Objectify couldn't handle prefixed XSD type names in ``xsi:type``
- * More ET compatible behaviour when writing out XML declarations or not
- * More robust error handling in ``iterparse()``
- * Documents lost their top-level PIs and comments on serialisation
- * lxml.sax failed on comments and PIs. Comments are now properly ignored and
- PIs are copied.
- * Possible memory leaks in namespace handling when moving elements between
- documents
- Other changes
- -------------
- * major restructuring in the documentation
- 1.2.1 (2007-02-27)
- ==================
- Bugs fixed
- ----------
- * Build fixes for MS compiler
- * Item assignments to special names like ``element["text"]`` failed
- * Renamed ObjectifiedDataElement.__setText() to _setText() to make it easier
- to access
- * The pattern for attribute names in ObjectPath was too restrictive
- 1.2 (2007-02-20)
- ================
- Features added
- --------------
- * Rich comparison of QName objects
- * Support for regular expressions in benchmark selection
- * get/set emulation (not .attrib!) for attributes on processing instructions
- * ElementInclude Python module for ElementTree compatible XInclude processing
- that honours custom resolvers registered with the source document
- * ElementTree.parser property holds the parser used to parse the document
- * setup.py has been refactored for greater readability and flexibility
- * --rpath flag to setup.py to induce automatic linking-in of dynamic library
- runtime search paths has been renamed to --auto-rpath. This makes it
- possible to pass an --rpath directly to distutils; previously this was being
- shadowed.
- Bugs fixed
- ----------
- * Element instantiation now uses locks to prevent race conditions with threads
- * ElementTree.write() did not raise an exception when the file was not writable
- * Error handling could crash under Python <= 2.4.1 - fixed by disabling thread
- support in these environments
- * Element.find*() did not accept QName objects as path
- Other changes
- -------------
- * code cleanup: redundant _NodeBase super class merged into _Element class
- Note: although the impact should be zero in most cases, this change breaks
- the compatibiliy of the public C-API
- 1.1.2 (2006-10-30)
- ==================
- Features added
- --------------
- * Data elements in objectify support repr(), which is now used by dump()
- * Source distribution now ships with a patched Pyrex
- * New C-API function makeElement() to create new elements with text,
- tail, attributes and namespaces
- * Reuse original parser flags for XInclude
- * Simplified support for handling XSLT processing instructions
- Bugs fixed
- ----------
- * Parser resources were not freed before the next parser run
- * Open files and XML strings returned by Python resolvers were not
- closed/freed
- * Crash in the IDDict returned by XMLDTDID
- * Copying Comments and ProcessingInstructions failed
- * Memory leak for external URLs in _XSLTProcessingInstruction.parseXSL()
- * Memory leak when garbage collecting tailed root elements
- * HTML script/style content was not propagated to .text
- * Show text xincluded between text nodes correctly in .text and .tail
- * 'integer * objectify.StringElement' operation was not supported
- 1.1.1 (2006-09-21)
- ==================
- Features added
- --------------
- * XSLT profiling support (``profile_run`` keyword)
- * countchildren() method on objectify.ObjectifiedElement
- * Support custom elements for tree nodes in lxml.objectify
- Bugs fixed
- ----------
- * lxml.objectify failed to support long data values (e.g., "123L")
- * Error messages from XSLT did not reach ``XSLT.error_log``
- * Factories objectify.Element() and objectify.DataElement() were missing
- ``attrib`` and ``nsmap`` keyword arguments
- * Changing the default parser in lxml.objectify did not update the factories
- Element() and DataElement()
- * Let lxml.objectify.Element() always generate tree elements (not data
- elements)
- * Build under Windows failed ('\0' bug in patched Pyrex version)
- 1.1 (2006-09-13)
- ================
- Features added
- --------------
- * Comments and processing instructions return '<!-- coment -->' and
- '<?pi-target content?>' for repr()
- * Parsers are now the preferred (and default) place where element class lookup
- schemes should be registered. Namespace lookup is no longer supported by
- default.
- * Support for Python 2.5 beta
- * Unlock the GIL for deep copying documents and for XPath()
- * New ``compact`` keyword argument for parsing read-only documents
- * Support for parser options in iterparse()
- * The ``namespace`` axis is supported in XPath and returns (prefix, URI)
- tuples
- * The XPath expression "/" now returns an empty list instead of raising an
- exception
- * XML-Object API on top of lxml (lxml.objectify)
- * Customizable Element class lookup:
- * different pre-implemented lookup mechanisms
- * support for externally provided lookup functions
- * Support for processing instructions (ET-like, not compatible)
- * Public C-level API for independent extension modules
- * Module level ``iterwalk()`` function as 'iterparse' for trees
- * Module level ``iterparse()`` function similar to ElementTree (see
- documentation for differences)
- * Element.nsmap property returns a mapping of all namespace prefixes known at
- the Element to their namespace URI
- * Reentrant threading support in RelaxNG, XMLSchema and XSLT
- * Threading support in parsers and serializers:
- * All in-memory operations (tostring, parse(StringIO), etc.) free the GIL
- * File operations (on file names) free the GIL
- * Reading from file-like objects frees the GIL and reacquires it for reading
- * Serialisation to file-like objects is single-threaded (high lock overhead)
- * Element iteration over XPath axes:
- * Element.iterdescendants() iterates over the descendants of an element
- * Element.iterancestors() iterates over the ancestors of an element (from
- parent to parent)
- * Element.itersiblings() iterates over either the following or preceding
- siblings of an element
- * Element.iterchildren() iterates over the children of an element in either
- direction
- * All iterators support the ``tag`` keyword argument to restrict the
- generated elements
- * Element.getnext() and Element.getprevious() return the direct siblings of an
- element
- Bugs fixed
- ----------
- * filenames with local 8-bit encoding were not supported
- * 1.1beta did not compile under Python 2.3
- * ignore unknown 'pyval' attribute values in objectify
- * objectify.ObjectifiedElement.addattr() failed to accept Elements and Lists
- * objectify.ObjectPath.setattr() failed to accept Elements and Lists
- * XPathSyntaxError now inherits from XPathError
- * Threading race conditions in RelaxNG and XMLSchema
- * Crash when mixing elements from XSLT results into other trees, concurrent
- XSLT is only allowed when the stylesheet was parsed in the main thread
- * The EXSLT ``regexp:match`` function now works as defined (except for some
- differences in the regular expression syntax)
- * Setting element.text to '' returned None on request, not the empty string
- * ``iterparse()`` could crash on long XML files
- * Creating documents no longer copies the parser for later URL resolving. For
- performance reasons, only a reference is kept. Resolver updates on the
- parser will now be reflected by documents that were parsed before the
- change. Although this should rarely become visible, it is a behavioral
- change from 1.0.
- 1.0.4 (2006-09-09)
- ==================
- Features added
- --------------
- * List-like ``Element.extend()`` method
- Bugs fixed
- ----------
- * Crash in tail handling in ``Element.replace()``
- 1.0.3 (2006-08-08)
- ==================
- Features added
- --------------
- * Element.replace(old, new) method to replace a subelement by another one
- Bugs fixed
- ----------
- * Crash when mixing elements from XSLT results into other trees
- * Copying/deepcopying did not work for ElementTree objects
- * Setting an attribute to a non-string value did not raise an exception
- * Element.remove() deleted the tail text from the removed Element
- 1.0.2 (2006-06-27)
- ==================
- Features added
- --------------
- * Support for setting a custom default Element class as opposed to namespace
- specific classes (which still override the default class)
- Bugs fixed
- ----------
- * Rare exceptions in Python list functions were not handled
- * Parsing accepted unicode strings with XML encoding declaration in certain
- cases
- * Parsing 8-bit encoded strings from StringIO objects raised an exception
- * Module function ``initThread()`` was removed - useless (and never worked)
- * XSLT and parser exception messages include the error line number
- 1.0.1 (2006-06-09)
- ==================
- Features added
- --------------
- * Repeated calls to Element.attrib now efficiently return the same instance
- Bugs fixed
- ----------
- * Document deallocation could crash in certain garbage collection scenarios
- * Extension function calls in XSLT variable declarations could break the
- stylesheet and crash on repeated calls
- * Deep copying Elements could loose namespaces declared in parents
- * Deep copying Elements did not copy tail
- * Parsing file(-like) objects failed to load external entities
- * Parsing 8-bit strings from file(-like) objects raised an exception
- * xsl:include failed when the stylesheet was parsed from a file-like object
- * lxml.sax.ElementTreeProducer did not call startDocument() / endDocument()
- * MSVC compiler complained about long strings (supports only 2048 bytes)
- 1.0 (2006-06-01)
- ================
- Features added
- --------------
- * Element.getiterator() and the findall() methods support finding arbitrary
- elements from a namespace (pattern ``{namespace}*``)
- * Another speedup in tree iteration code
- * General speedup of Python Element object creation and deallocation
- * Writing C14N no longer serializes in memory (reduced memory footprint)
- * PyErrorLog for error logging through the Python ``logging`` module
- * ``Element.getroottree()`` returns an ElementTree for the root node of the
- document that contains the element.
- * ElementTree.getpath(element) returns a simple, absolute XPath expression to
- find the element in the tree structure
- * Error logs have a ``last_error`` attribute for convenience
- * Comment texts can be changed through the API
- * Formatted output via ``pretty_print`` keyword in serialization functions
- * XSLT can block access to file system and network via ``XSLTAccessControl``
- * ElementTree.write() no longer serializes in memory (reduced memory
- footprint)
- * Speedup of Element.findall(tag) and Element.getiterator(tag)
- * Support for writing the XML representation of Elements and ElementTrees to
- Python unicode strings via ``etree.tounicode()``
- * Support for writing XSLT results to Python unicode strings via ``unicode()``
- * Parsing a unicode string no longer copies the string (reduced memory
- footprint)
- * Parsing file-like objects reads chunks rather than the whole file (reduced
- memory footprint)
- * Parsing StringIO objects from the start avoids copying the string (reduced
- memory footprint)
- * Read-only 'docinfo' attribute in ElementTree class holds DOCTYPE
- information, original encoding and XML version as seen by the parser
- * etree module can be compiled without libxslt by commenting out the line
- ``include "xslt.pxi"`` near the end of the etree.pyx source file
- * Better error messages in parser exceptions
- * Error reporting also works in XSLT
- * Support for custom document loaders (URI resolvers) in parsers and XSLT,
- resolvers are registered at parser level
- * Implementation of exslt:regexp for XSLT based on the Python 're' module,
- enabled by default, can be switched off with 'regexp=False' keyword argument
- * Support for exslt extensions (libexslt) and libxslt extra functions
- (node-set, document, write, output)
- * Substantial speedup in XPath.evaluate()
- * HTMLParser for parsing (broken) HTML
- * XMLDTDID function parses XML into tuple (root node, ID dict) based on xml:id
- implementation of libxml2 (as opposed to ET compatible XMLID)
- Bugs fixed
- ----------
- * Memory leak in Element.__setitem__
- * Memory leak in Element.attrib.items() and Element.attrib.values()
- * Memory leak in XPath extension functions
- * Memory leak in unicode related setup code
- * Element now raises ValueError on empty tag names
- * Namespace fixing after moving elements between documents could fail if the
- source document was freed too early
- * Setting namespace-less tag names on namespaced elements ('{ns}t' -> 't')
- didn't reset the namespace
- * Unknown constants from newer libxml2 versions could raise exceptions in the
- error handlers
- * lxml.etree compiles much faster
- * On libxml2 <= 2.6.22, parsing strings with encoding declaration could fail
- in certain cases
- * Document reference in ElementTree objects was not updated when the root
- element was moved to a different document
- * Running absolute XPath expressions on an Element now evaluates against the
- root tree
- * Evaluating absolute XPath expressions (``/*``) on an ElementTree could fail
- * Crashes when calling XSLT, RelaxNG, etc. with uninitialized ElementTree
- objects
- * Removed public function ``initThreadLogging()``, replaced by more general
- ``initThread()`` which fixes a number of setup problems in threads
- * Memory leak when using iconv encoders in tostring/write
- * Deep copying Elements and ElementTrees maintains the document information
- * Serialization functions raise LookupError for unknown encodings
- * Memory deallocation crash resulting from deep copying elements
- * Some ElementTree methods could crash if the root node was not initialized
- (neither file nor element passed to the constructor)
- * Element/SubElement failed to set attribute namespaces from passed ``attrib``
- dictionary
- * ``tostring()`` adds an XML declaration for non-ASCII encodings
- * ``tostring()`` failed to serialize encodings that contain 0-bytes
- * ElementTree.xpath() and XPathDocumentEvaluator were not using the
- ElementTree root node as reference point
- * Calling ``document('')`` in XSLT failed to return the stylesheet
- 0.9.2 (2006-05-10)
- ==================
- Features added
- --------------
- * Speedup for Element.makeelement(): the new element reuses the original
- libxml2 document instead of creating a new empty one
- * Speedup for reversed() iteration over element children (Py2.4+ only)
- * ElementTree compatible QName class
- * RelaxNG and XMLSchema accept any Element, not only ElementTrees
- Bugs fixed
- ----------
- * str(xslt_result) was broken for XSLT output other than UTF-8
- * Memory leak if write_c14n fails to write the file after conversion
- * Crash in XMLSchema and RelaxNG when passing non-schema documents
- * Memory leak in RelaxNG() when RelaxNGParseError is raised
- 0.9.1 (2006-03-30)
- ==================
- Features added
- --------------
- * lxml.sax.ElementTreeContentHandler checks closing elements and raises
- SaxError on mismatch
- * lxml.sax.ElementTreeContentHandler supports namespace-less SAX events
- (startElement, endElement) and defaults to empty attributes (keyword
- argument)
- * Speedup for repeatedly accessing element tag names
- * Minor API performance improvements
- Bugs fixed
- ----------
- * Memory deallocation bug when using XSLT output method "html"
- * sax.py was handling UTF-8 encoded tag names where it shouldn't
- * lxml.tests package will no longer be installed (is still in source tar)
- 0.9 (2006-03-20)
- ================
- Features added
- --------------
- * Error logging API for libxml2 error messages
- * Various performance improvements
- * Benchmark script for lxml, ElementTree and cElementTree
- * Support for registering extension functions through new FunctionNamespace
- class (see doc/extensions.txt)
- * ETXPath class for XPath expressions in ElementTree notation ('//{ns}tag')
- * Support for variables in XPath expressions (also in XPath class)
- * XPath class for compiled XPath expressions
- * XMLID module level function (ElementTree compatible)
- * XMLParser API for customized libxml2 parser configuration
- * Support for custom Element classes through new Namespace API (see
- doc/namespace_extensions.txt)
- * Common exception base class LxmlError for module exceptions
- * real iterator support in iter(Element), Element.getiterator()
- * XSLT objects are callable, result trees support str()
- * Added MANIFEST.in for easier creation of RPM files.
- * 'getparent' method on elements allows navigation to an element's
- parent element.
- * Python core compatible SAX tree builder and SAX event generator. See
- doc/sax.txt for more information.
- Bugs fixed
- ----------
- * Segfaults and memory leaks in various API functions of Element
- * Segfault in XSLT.tostring()
- * ElementTree objects no longer interfere, Elements can be root of different
- ElementTrees at the same time
- * document('') works in XSLT documents read from files (in-memory documents
- cannot support this due to libxslt deficiencies)
- 0.8 (2005-11-03)
- ================
- Features added
- --------------
- * Support for copy.deepcopy() on elements. copy.copy() works also, but
- does the same thing, and does *not* create a shallow copy, as that
- makes no sense in the context of libxml2 trees. This means a
- potential incompatibility with ElementTree, but there's more chance
- that it works than if copy.copy() isn't supported at all.
- * Increased compatibility with (c)ElementTree; .parse() on ElementTree is
- supported and parsing of gzipped XML files works.
- * implemented index() on elements, allowing one to find the index of a
- SubElement.
- Bugs fixed
- ----------
- * Use xslt-config instead of xml2-config to find out libxml2
- directories to take into account a case where libxslt is installed
- in a different directory than libxslt.
- * Eliminate crash condition in iteration when text nodes are changed.
- * Passing 'None' to tostring() does not result in a segfault anymore,
- but an AssertionError.
- * Some test fixes for Windows.
- * Raise XMLSyntaxError and XPathSyntaxError instead of plain python
- syntax errors. This should be less confusing.
- * Fixed error with uncaught exception in Pyrex code.
- * Calling lxml.etree.fromstring('') throws XMLSyntaxError instead of a
- segfault.
- * has_key() works on attrib. 'in' tests also work correctly on attrib.
- * INSTALL.txt was saying 2.2.16 instead of 2.6.16 as a supported
- libxml2 version, as it should.
- * Passing a UTF-8 encoded string to the XML() function would fail;
- fixed.
- 0.7 (2005-06-15)
- ================
- Features added
- --------------
- * parameters (XPath expressions) can be passed to XSLT using keyword
- parameters.
- * Simple XInclude support. Calling the xinclude() method on a tree
- will process any XInclude statements in the document.
- * XMLSchema support. Use the XMLSchema class or the convenience
- xmlschema() method on a tree to do XML Schema (XSD) validation.
- * Added convenience xslt() method on tree. This is less efficient
- than the XSLT object, but makes it easier to write quick code.
- * Added convenience relaxng() method on tree. This is less efficient
- than the RelaxNG object, but makes it easier to write quick code.
- * Make it possible to use XPathEvaluator with elements as well. The
- XPathEvaluator in this case will retain the element so multiple
- XPath queries can be made against one element efficiently. This
- replaces the second argument to the .evaluate() method that existed
- previously.
- * Allow registerNamespace() to be called on an XPathEvaluator, after
- creation, to add additional namespaces. Also allow registerNamespaces(),
- which does the same for a namespace dictionary.
- * Add 'prefix' attribute to element to be able to read prefix information.
- This is entirely read-only.
- * It is possible to supply an extra nsmap keyword parameter to
- the Element() and SubElement() constructors, which supplies a
- prefix to namespace URI mapping. This will create namespace
- prefix declarations on these elements and these prefixes will show up
- in XML serialization.
-
- Bugs fixed
- ----------
-
- * Killed yet another memory management related bug: trees created
- using newDoc would not get a libxml2-level dictionary, which caused
- problems when deallocating these documents later if they contained a
- node that came from a document with a dictionary.
- * Moving namespaced elements between documents was problematic as
- references to the original document would remain. This has been fixed
- by applying xmlReconciliateNs() after each move operation.
- * Can pass None to 'dump()' without segfaults.
- * tostring() works properly for non-root elements as well.
- * Cleaned out the tostring() method so it should handle encoding
- correctly.
- * Cleaned out the ElementTree.write() method so it should handle encoding
- correctly. Writing directly to a file should also be faster, as there is no
- need to go through a Python string in that case. Made sure the test cases
- test both serializing to StringIO as well as serializing to a real file.
- 0.6 (2005-05-14)
- ================
- Features added
- --------------
- * Changed setup.py so that library_dirs is also guessed. This should
- help with compilation on the Mac OS X platform, where otherwise the
- wrong library (shipping with the OS) could be picked up.
- * Tweaked setup.py so that it picks up the version from version.txt.
- Bugs fixed
- ----------
- * Do the right thing when handling namespaced attributes.
- * fix bug where tostring() moved nodes into new documents. tostring()
- had very nasty side-effects before this fix, sorry!
- 0.5.1 (2005-04-09)
- ==================
- * Python 2.2 compatibility fixes.
- * unicode fixes in Element() and Comment() as well as XML(); unicode
- input wasn't properly being UTF-8 encoded.
- 0.5 (2005-04-08)
- ================
- Initial public release.
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