beautifulsoup4-4.12.1.tar.gz资源-CSDN文库

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rst：5个

《BeautifulSoup4-4.12.1：Python网页解析利器》 BeautifulSoup4是Python编程语言中的一个强大库，专用于HTML和XML文档的解析和处理。版本4.12.1是这个库的一个更新版本，提供了更稳定的功能和修复了一些已知问题。在Python的Web抓取和数据提取领域，BeautifulSoup4是一个不可或缺的工具，它的易用性和灵活性深受开发者喜爱。一、BeautifulSoup4的基本概念与功能 1. 解析器：BeautifulSoup4支持多种解析器，如Python内置的HTML解析器和第三方的lxml解析器。用户可以根据性能需求选择合适的解析器。 2. 树形结构：它将HTML文档转换为一个复杂的树形结构，每个节点代表HTML元素，可以方便地遍历和操作整个文档。 3. 查找元素：通过CSS选择器、标签名、属性等方法，可以轻松找到文档中的特定元素，实现精准定位。 4. 操作元素：提供修改元素内容、添加删除子元素、改变属性值等多种操作，使得对HTML的修改变得简单直观。 5. 清理HTML：BeautifulSoup4能自动清理不规范的HTML代码，使其符合标准格式，便于后续处理。二、BeautifulSoup4-4.12.1版本更新亮点 1. 性能优化：新版本可能对解析速度进行了优化，提升了处理大量HTML文档时的效率。 2. 错误修复：修复了之前版本中的一些bug，提高了库的稳定性和可靠性。 3. 新增特性：可能添加了新的查找或操作元素的方法，扩大了库的使用范围。 4. 兼容性提升：可能增强了与其他Python库的兼容性，例如与requests库配合进行HTTP请求。三、BeautifulSoup4的使用示例 ```python from bs4 import BeautifulSoup import requests # 发送HTTP请求获取HTML页面 response = requests.get('http://example.com') html = response.text # 创建BeautifulSoup对象 soup = BeautifulSoup(html, 'html.parser') # 查找指定标签 elems = soup.find_all('a') # 找到所有<a>标签 # 遍历并打印链接 for elem in elems: print(elem.get('href')) ``` 四、BeautifulSoup4在实际应用中的场景 1. 数据抓取：从网站上抓取结构化数据，如新闻标题、商品价格等。 2. 网页自动化：自动填写表单、点击按钮，实现网页交互。 3. 网页修复：检查和修复HTML文档的错误，使其符合标准。 4. 爬虫框架：作为基础组件，与其他爬虫库（如Scrapy）结合使用。 BeautifulSoup4-4.12.1是Python开发中处理HTML文档的强大工具，无论你是初学者还是经验丰富的开发者，都能从中受益。通过熟练掌握这个库，你可以轻松地进行网页数据提取和分析，为你的项目增添无限可能。

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beautifulsoup4-4.12.1.tar.gz （69个子文件）

beautifulsoup4-4.12.1

doc

Makefile 5KB

source

index.rst 121KB

conf.py 8KB

6.1.jpg 22KB

AUTHORS 2KB

LICENSE 1KB

test-all-versions 288B

PKG-INFO 3KB

doc.ptbr

Makefile 5KB

source

index.rst 115KB

conf.py 8KB

6.1.jpg 22KB

doc.jp

index.html 275KB

doc.ru

Makefile 5KB

source

index.rst 478B

conf.py 8KB

6.1.jpg 22KB

bs4ru.rst 155KB

NEWS.txt 69KB

pyproject.toml 2KB

bs4

__init__.py 33KB

dammit.py 40KB

builder

__init__.py 24KB

_lxml.py 15KB

_html5lib.py 19KB

_htmlparser.py 15KB

diagnose.py 7KB

tests

__init__.py 47KB

test_builder_registry.py 5KB

test_tag.py 9KB

test_builder.py 1KB

test_docs.py 1KB

test_formatter.py 4KB

test_soup.py 18KB

test_htmlparser.py 6KB

test_navigablestring.py 5KB

test_lxml.py 7KB

test_element.py 2KB

test_css.py 17KB

test_dammit.py 15KB

test_pageelement.py 14KB

fuzz

crash-0d306a50c8ed8bcd0785b67000fcd5dea1d33f08.testcase 3KB

clusterfuzz-testcase-minimized-bs4_fuzzer-6241471367348224.testcase 19B

clusterfuzz-testcase-minimized-bs4_fuzzer-6600557255327744.testcase 124B

clusterfuzz-testcase-minimized-bs4_fuzzer-5984173902397440.testcase 50KB

clusterfuzz-testcase-minimized-bs4_fuzzer-6124268085182464.testcase 10KB

clusterfuzz-testcase-minimized-bs4_fuzzer-5167584867909632.testcase 19KB

clusterfuzz-testcase-minimized-bs4_fuzzer-5703933063462912.testcase 5B

clusterfuzz-testcase-minimized-bs4_fuzzer-5843991618256896.testcase 35B

clusterfuzz-testcase-minimized-bs4_fuzzer-6450958476902400.testcase 3KB

clusterfuzz-testcase-minimized-bs4_fuzzer-4999465949331456.testcase 30B

clusterfuzz-testcase-minimized-bs4_fuzzer-4818336571064320.testcase 23B

test_fuzz.py 4KB

test_html5lib.py 8KB

test_tree.py 47KB

formatter.py 7KB

css.py 10KB

element.py 91KB

.gitignore 1KB

doc.ko

6.1.jpg 22KB

index.html 251KB

index.css 9KB

README.md 2KB

CHANGELOG 69KB

doc.zh

Makefile 5KB

source

index.rst 95KB

conf.py 8KB

6.1.jpg 22KB

scripts

demonstrate_parser_differences.py 5KB

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("SomebadHTML") >>> print(soup.prettify()) <html> <body> Some bad HTML </body> </html> >>> soup.find(text="bad") 'bad' >>> soup.i HTML # >>> 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](https://www.crummy.com/software/BeautifulSoup/bs4/doc/). # Links * [Homepage](https://www.crummy.com/software/BeautifulSoup/bs4/) * [Documentation](https://www.crummy.com/software/BeautifulSoup/bs4/doc/) * [Discussion group](https://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 Beautiful Soup's support for Python 2 was discontinued on December 31, 2020: one year after the sunset date for Python 2 itself. From this point onward, new Beautiful Soup development will exclusively target Python 3. The final release of Beautiful Soup 4 to support Python 2 was 4.9.3. # 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 using Pytest: ``` $ pytest ```

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