Beautiful Soup is a library that makes it easy to scrape information
from web pages. It sits atop an HTML or XML parser, providing Pythonic
idioms for iterating, searching, and modifying the parse tree.
# Quick start
```
>>> from bs4 import BeautifulSoup
>>> soup = BeautifulSoup("<p>Some<b>bad<i>HTML")
>>> print(soup.prettify())
<html>
<body>
<p>
Some
<b>
bad
<i>
HTML
</i>
</b>
</p>
</body>
</html>
>>> soup.find(text="bad")
'bad'
>>> soup.i
<i>HTML</i>
#
>>> soup = BeautifulSoup("<tag1>Some<tag2/>bad<tag3>XML", "xml")
#
>>> print(soup.prettify())
<?xml version="1.0" encoding="utf-8"?>
<tag1>
Some
<tag2/>
bad
<tag3>
XML
</tag3>
</tag1>
```
To go beyond the basics, [comprehensive documentation is available](http://www.crummy.com/software/BeautifulSoup/bs4/doc/).
# Links
* [Homepage](http://www.crummy.com/software/BeautifulSoup/bs4/)
* [Documentation](http://www.crummy.com/software/BeautifulSoup/bs4/doc/)
* [Discussion group](http://groups.google.com/group/beautifulsoup/)
* [Development](https://code.launchpad.net/beautifulsoup/)
* [Bug tracker](https://bugs.launchpad.net/beautifulsoup/)
* [Complete changelog](https://bazaar.launchpad.net/~leonardr/beautifulsoup/bs4/view/head:/CHANGELOG)
# Note on Python 2 sunsetting
Since 2012, Beautiful Soup has been developed as a Python 2 library
which is automatically converted to Python 3 code as necessary. This
makes it impossible to take advantage of some features of Python
3.
For this reason, I plan to discontinue Beautiful Soup's Python 2
support at some point after December 31, 2020: one year after the
sunset date for Python 2 itself. Beyond that point, new Beautiful Soup
development will exclusively target Python 3. Of course, older
releases of Beautiful Soup, which support both versions, will continue
to be available.
# Supporting the project
If you use Beautiful Soup as part of your professional work, please consider a
[Tidelift subscription](https://tidelift.com/subscription/pkg/pypi-beautifulsoup4?utm_source=pypi-beautifulsoup4&utm_medium=referral&utm_campaign=readme).
This will support many of the free software projects your organization
depends on, not just Beautiful Soup.
If you use Beautiful Soup for personal projects, the best way to say
thank you is to read
[Tool Safety](https://www.crummy.com/software/BeautifulSoup/zine/), a zine I
wrote about what Beautiful Soup has taught me about software
development.
# Building the documentation
The bs4/doc/ directory contains full documentation in Sphinx
format. Run `make html` in that directory to create HTML
documentation.
# Running the unit tests
Beautiful Soup supports unit test discovery from the project root directory:
```
$ nosetests
```
```
$ python -m unittest discover -s bs4
```
If you checked out the source tree, you should see a script in the
home directory called test-all-versions. This script will run the unit
tests under Python 2, then create a temporary Python 3 conversion of
the source and run the unit tests again under Python 3.
beautifulsoup4-4.9.2.tar.gz （54个子文件） 
beautifulsoup4-4.9.2 
TODO.txt 1KB
convert-py3k 546B setup.py 2KB doc Makefile 5KB source index.rst 117KB check_doc.py 697B conf.py 8KB
6.1.jpg 22KB LICENSE 1KB test-all-versions 56B PKG-INFO 5KB doc.ptbr Makefile 5KB source index.rst 115KB conf.py 8KB 6.1.jpg 22KB COPYING.txt 1KB doc.ru Makefile 5KB source index.rst 478B conf.py 8KB 6.1.jpg 22KB bs4ru.rst 155KB NEWS.txt 58KB bs4 __init__.py 31KB dammit.py 33KB testing.py 45KB builder __init__.py 19KB _lxml.py 12KB _html5lib.py 18KB _htmlparser.py 18KB diagnose.py 8KB tests __init__.py 27B test_builder_registry.py 5KB test_docs.py 1KB test_soup.py 29KB test_htmlparser.py 4KB test_lxml.py 4KB test_html5lib.py 7KB test_tree.py 87KB formatter.py 6KB element.py 80KB MANIFEST.in 219B setup.cfg 38B beautifulsoup4.egg-info SOURCES.txt 1KB top_level.txt 4B PKG-INFO 5KB requires.txt 122B dependency_links.txt 1B README.md 3KB doc.zh Makefile 5KB source index.rst 94KB conf.py 8KB 6.1.jpg 22KB scripts demonstrate_parser_differences.py 3KB demonstration_markup.txt 3KB资源评论
