使用pip安装BeautifulSoup4模块

1.测试是否安装了BeautifulSoup4模块

import bs4
print bs4

执行报错说明没有安装该模块

Traceback (most recent call last):
  File "D:work_javapythonsrcaike_spider	est.py", line 7, in <module>
    import bs4
ImportError: No module named bs4

2.使用pip安装BeautifulSoup4模块

 C:Python27Scripts 的目录

2015/09/11  09:51    <DIR>          .
2015/09/11  09:51    <DIR>          ..
2015/09/11  09:51            95,592 easy_install-2.7.exe
2015/09/11  09:51            95,592 easy_install.exe
2015/09/11  09:51            95,564 pip.exe
2015/09/11  09:51            95,564 pip2.7.exe
2015/09/11  09:51            95,564 pip2.exe
               5 个文件        477,876 字节
               2 个目录 75,941,163,008 可用字节

C:Python27Scripts>pip install beautifulsoup4
You are using pip version 7.0.1, however version 8.0.2 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
Collecting beautifulsoup4
  Downloading beautifulsoup4-4.4.1-py2-none-any.whl (81kB)
    100% |████████████████████████████████| 81kB 111kB/s
Installing collected packages: beautifulsoup4
Successfully installed beautifulsoup4-4.4.1

2.再重新测试正常

<module 'bs4' from 'C:Python27libsite-packagess4\__init__.pyc'>