安装

下面主要以，Mac中Python 3的bs4为例，解释如何安装BeautifulSoup：

• pip3 install bs4
  • 或：pip install bs4
    • 确保你的pip是Python 3版本

举例：

➜  reVsBeautifulSoup pip3 install bs4
Collecting bs4
  Downloading bs4-0.0.1.tar.gz (1.1 kB)
Collecting beautifulsoup4
  Downloading beautifulsoup4-4.8.2-py3-none-any.whl (106 kB)
     |████████████████████████████████| 106 kB 65 kB/s 
Collecting soupsieve>=1.2
  Downloading soupsieve-1.9.5-py2.py3-none-any.whl (33 kB)
Building wheels for collected packages: bs4
  Building wheel for bs4 (setup.py) ... done
  Created wheel for bs4: filename=bs4-0.0.1-py3-none-any.whl size=1272 sha256=603268b090d3e1b68d5f70078c71c667ef0adab7433943d30bcbdd288161735f
  Stored in directory: /Users/crifan/Library/Caches/pip/wheels/0a/9e/ba/20e5bbc1afef3a491f0b3bb74d508f99403aabe76eda2167ca
Successfully built bs4
Installing collected packages: soupsieve, beautifulsoup4, bs4
Successfully installed beautifulsoup4-4.8.2 bs4-0.0.1 soupsieve-1.9.5

查看已安装的版本：

➜  reVsBeautifulSoup pip3 show bs4
Name: bs4
Version: 0.0.1
Summary: Screen-scraping library
Home-page: https://pypi.python.org/pypi/beautifulsoup4
Author: Leonard Richardson
Author-email: leonardr@segfault.org
License: MIT
Location: /usr/local/lib/python3.7/site-packages
Requires: beautifulsoup4
Required-by:

此处已安装的版本是：

• bs4: 0.0.1
  • 依赖库
    • BeautifulSoup4：4.8.2
    • soupsieve：1.9.5