344 lines
12 KiB
Text
344 lines
12 KiB
Text
Metadata-Version: 1.1
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Name: html5lib
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Version: 0.999
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Summary: HTML parser based on the WHATWG HTML specifcation
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Home-page: https://github.com/html5lib/html5lib-python
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Author: James Graham
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Author-email: james@hoppipolla.co.uk
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License: MIT License
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Description: html5lib
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========
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.. image:: https://travis-ci.org/html5lib/html5lib-python.png?branch=master
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:target: https://travis-ci.org/html5lib/html5lib-python
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html5lib is a pure-python library for parsing HTML. It is designed to
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conform to the WHATWG HTML specification, as is implemented by all major
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web browsers.
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Usage
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-----
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Simple usage follows this pattern:
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.. code-block:: python
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import html5lib
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with open("mydocument.html", "rb") as f:
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document = html5lib.parse(f)
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or:
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.. code-block:: python
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import html5lib
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document = html5lib.parse("<p>Hello World!")
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By default, the ``document`` will be an ``xml.etree`` element instance.
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Whenever possible, html5lib chooses the accelerated ``ElementTree``
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implementation (i.e. ``xml.etree.cElementTree`` on Python 2.x).
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Two other tree types are supported: ``xml.dom.minidom`` and
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``lxml.etree``. To use an alternative format, specify the name of
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a treebuilder:
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.. code-block:: python
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import html5lib
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with open("mydocument.html", "rb") as f:
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lxml_etree_document = html5lib.parse(f, treebuilder="lxml")
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When using with ``urllib2`` (Python 2), the charset from HTTP should be
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pass into html5lib as follows:
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.. code-block:: python
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from contextlib import closing
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from urllib2 import urlopen
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import html5lib
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with closing(urlopen("http://example.com/")) as f:
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document = html5lib.parse(f, encoding=f.info().getparam("charset"))
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When using with ``urllib.request`` (Python 3), the charset from HTTP
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should be pass into html5lib as follows:
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.. code-block:: python
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from urllib.request import urlopen
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import html5lib
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with urlopen("http://example.com/") as f:
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document = html5lib.parse(f, encoding=f.info().get_content_charset())
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To have more control over the parser, create a parser object explicitly.
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For instance, to make the parser raise exceptions on parse errors, use:
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.. code-block:: python
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import html5lib
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with open("mydocument.html", "rb") as f:
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parser = html5lib.HTMLParser(strict=True)
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document = parser.parse(f)
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When you're instantiating parser objects explicitly, pass a treebuilder
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class as the ``tree`` keyword argument to use an alternative document
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format:
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.. code-block:: python
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import html5lib
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parser = html5lib.HTMLParser(tree=html5lib.getTreeBuilder("dom"))
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minidom_document = parser.parse("<p>Hello World!")
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More documentation is available at http://html5lib.readthedocs.org/.
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Installation
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------------
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html5lib works on CPython 2.6+, CPython 3.2+ and PyPy. To install it,
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use:
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.. code-block:: bash
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$ pip install html5lib
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Optional Dependencies
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---------------------
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The following third-party libraries may be used for additional
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functionality:
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- ``datrie`` can be used to improve parsing performance (though in
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almost all cases the improvement is marginal);
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- ``lxml`` is supported as a tree format (for both building and
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walking) under CPython (but *not* PyPy where it is known to cause
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segfaults);
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- ``genshi`` has a treewalker (but not builder); and
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- ``charade`` can be used as a fallback when character encoding cannot
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be determined; ``chardet``, from which it was forked, can also be used
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on Python 2.
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- ``ordereddict`` can be used under Python 2.6
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(``collections.OrderedDict`` is used instead on later versions) to
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serialize attributes in alphabetical order.
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Bugs
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----
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Please report any bugs on the `issue tracker
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<https://github.com/html5lib/html5lib-python/issues>`_.
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Tests
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-----
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Unit tests require the ``nose`` library and can be run using the
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``nosetests`` command in the root directory; ``ordereddict`` is
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required under Python 2.6. All should pass.
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Test data are contained in a separate `html5lib-tests
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<https://github.com/html5lib/html5lib-tests>`_ repository and included
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as a submodule, thus for git checkouts they must be initialized::
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$ git submodule init
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$ git submodule update
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If you have all compatible Python implementations available on your
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system, you can run tests on all of them using the ``tox`` utility,
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which can be found on PyPI.
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Questions?
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----------
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There's a mailing list available for support on Google Groups,
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`html5lib-discuss <http://groups.google.com/group/html5lib-discuss>`_,
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though you may get a quicker response asking on IRC in `#whatwg on
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irc.freenode.net <http://wiki.whatwg.org/wiki/IRC>`_.
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Change Log
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----------
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0.999
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~~~~~
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Released on December 23, 2013
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* Fix #127: add work-around for CPython issue #20007: .read(0) on
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http.client.HTTPResponse drops the rest of the content.
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* Fix #115: lxml treewalker can now deal with fragments containing, at
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their root level, text nodes with non-ASCII characters on Python 2.
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0.99
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~~~~
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Released on September 10, 2013
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* No library changes from 1.0b3; released as 0.99 as pip has changed
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behaviour from 1.4 to avoid installing pre-release versions per
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PEP 440.
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1.0b3
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~~~~~
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Released on July 24, 2013
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* Removed ``RecursiveTreeWalker`` from ``treewalkers._base``. Any
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implementation using it should be moved to
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``NonRecursiveTreeWalker``, as everything bundled with html5lib has
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for years.
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* Fix #67 so that ``BufferedStream`` to correctly returns a bytes
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object, thereby fixing any case where html5lib is passed a
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non-seekable RawIOBase-like object.
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1.0b2
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~~~~~
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Released on June 27, 2013
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* Removed reordering of attributes within the serializer. There is now
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an ``alphabetical_attributes`` option which preserves the previous
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behaviour through a new filter. This allows attribute order to be
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preserved through html5lib if the tree builder preserves order.
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* Removed ``dom2sax`` from DOM treebuilders. It has been replaced by
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``treeadapters.sax.to_sax`` which is generic and supports any
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treewalker; it also resolves all known bugs with ``dom2sax``.
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* Fix treewalker assertions on hitting bytes strings on
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Python 2. Previous to 1.0b1, treewalkers coped with mixed
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bytes/unicode data on Python 2; this reintroduces this prior
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behaviour on Python 2. Behaviour is unchanged on Python 3.
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1.0b1
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~~~~~
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Released on May 17, 2013
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* Implementation updated to implement the `HTML specification
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<http://www.whatwg.org/specs/web-apps/current-work/>`_ as of 5th May
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2013 (`SVN <http://svn.whatwg.org/webapps/>`_ revision r7867).
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* Python 3.2+ supported in a single codebase using the ``six`` library.
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* Removed support for Python 2.5 and older.
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* Removed the deprecated Beautiful Soup 3 treebuilder.
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``beautifulsoup4`` can use ``html5lib`` as a parser instead. Note that
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since it doesn't support namespaces, foreign content like SVG and
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MathML is parsed incorrectly.
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* Removed ``simpletree`` from the package. The default tree builder is
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now ``etree`` (using the ``xml.etree.cElementTree`` implementation if
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available, and ``xml.etree.ElementTree`` otherwise).
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* Removed the ``XHTMLSerializer`` as it never actually guaranteed its
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output was well-formed XML, and hence provided little of use.
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* Removed default DOM treebuilder, so ``html5lib.treebuilders.dom`` is no
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longer supported. ``html5lib.treebuilders.getTreeBuilder("dom")`` will
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return the default DOM treebuilder, which uses ``xml.dom.minidom``.
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* Optional heuristic character encoding detection now based on
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``charade`` for Python 2.6 - 3.3 compatibility.
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* Optional ``Genshi`` treewalker support fixed.
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* Many bugfixes, including:
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* #33: null in attribute value breaks XML AttValue;
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* #4: nested, indirect descendant, <button> causes infinite loop;
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* `Google Code 215
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<http://code.google.com/p/html5lib/issues/detail?id=215>`_: Properly
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detect seekable streams;
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* `Google Code 206
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<http://code.google.com/p/html5lib/issues/detail?id=206>`_: add
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support for <video preload=...>, <audio preload=...>;
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* `Google Code 205
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<http://code.google.com/p/html5lib/issues/detail?id=205>`_: add
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support for <video poster=...>;
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* `Google Code 202
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<http://code.google.com/p/html5lib/issues/detail?id=202>`_: Unicode
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file breaks InputStream.
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* Source code is now mostly PEP 8 compliant.
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* Test harness has been improved and now depends on ``nose``.
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* Documentation updated and moved to http://html5lib.readthedocs.org/.
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0.95
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~~~~
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Released on February 11, 2012
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0.90
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~~~~
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Released on January 17, 2010
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0.11.1
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~~~~~~
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Released on June 12, 2008
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0.11
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~~~~
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Released on June 10, 2008
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0.10
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~~~~
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Released on October 7, 2007
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0.9
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~~~
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Released on March 11, 2007
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0.2
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~~~
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Released on January 8, 2007
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Platform: UNKNOWN
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Classifier: Development Status :: 5 - Production/Stable
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Classifier: Intended Audience :: Developers
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Classifier: License :: OSI Approved :: MIT License
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Classifier: Operating System :: OS Independent
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Classifier: Programming Language :: Python
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Classifier: Programming Language :: Python :: 2
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Classifier: Programming Language :: Python :: 2.6
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Classifier: Programming Language :: Python :: 2.7
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Classifier: Programming Language :: Python :: 3
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Classifier: Programming Language :: Python :: 3.2
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Classifier: Programming Language :: Python :: 3.3
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Classifier: Topic :: Software Development :: Libraries :: Python Modules
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Classifier: Topic :: Text Processing :: Markup :: HTML
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