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Parsel is a library to extract data from HTML and XML using XPath and CSS selectors

Project description

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Parsel is a library to extract data from HTML and XML using XPath and CSS selectors

Features

  • Extract text using CSS or XPath selectors

  • Regular expression helper methods

Example:

>>> from parsel import Selector
>>> sel = Selector(text=u"""<html>
        <body>
            <h1>Hello, Parsel!</h1>
            <ul>
                <li><a href="http://example.com">Link 1</a></li>
                <li><a href="http://scrapy.org">Link 2</a></li>
            </ul
        </body>
        </html>""")
>>>
>>> sel.css('h1::text').extract_first()
u'Hello, Parsel!'
>>>
>>> sel.css('h1::text').re('\w+')
[u'Hello', u'Parsel']
>>>
>>> for e in sel.css('ul > li'):
        print(e.xpath('.//a/@href').extract_first())
http://example.com
http://scrapy.org

History

1.2.0 (2017-05-17)

  • Add SelectorList.get and SelectorList.getall methods as aliases for SelectorList.extract_first and SelectorList.extract respectively

  • Add default value parameter to SelectorList.re_first method

  • Add Selector.re_first method

  • Bug fix: detect None result from lxml parsing and fallback with an empty document

  • Rearrange XML/HTML examples in the selectors usage docs

  • Travis CI:

    • Test against Python 3.6

    • Test against PyPy using “Portable PyPy for Linux” distribution

1.1.0 (2016-11-22)

  • Change default HTML parser to lxml.html.HTMLParser, which makes easier to use some HTML specific features

  • Add css2xpath function to translate CSS to XPath

  • Add support for ad-hoc namespaces declarations

  • Add support for XPath variables

  • Documentation improvements and updates

1.0.3 (2016-07-29)

  • Add BSD-3-Clause license file

  • Re-enable PyPy tests

  • Integrate py.test runs with setuptools (needed for Debian packaging)

  • Changelog is now called NEWS

1.0.2 (2016-04-26)

  • Fix bug in exception handling causing original traceback to be lost

  • Added docstrings and other doc fixes

1.0.1 (2015-08-24)

  • Updated PyPI classifiers

  • Added docstrings for csstranslator module and other doc fixes

1.0.0 (2015-08-22)

  • Documentation fixes

0.9.6 (2015-08-14)

  • Updated documentation

  • Extended test coverage

0.9.5 (2015-08-11)

  • Support for extending SelectorList

0.9.4 (2015-08-10)

  • Try workaround for travis-ci/dpl#253

0.9.3 (2015-08-07)

  • Add base_url argument

0.9.2 (2015-08-07)

  • Rename module unified -> selector and promoted root attribute

  • Add create_root_node function

0.9.1 (2015-08-04)

  • Setup Sphinx build and docs structure

  • Build universal wheels

  • Rename some leftovers from package extraction

0.9.0 (2015-07-30)

  • First release on PyPI.

Project details


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