import bs4

print bs4

Traceback (most recent call last):

  File "D:\work_java\python\src\baike_spider\test.py", line , in <module>

    import bs4

ImportError: No module named bs4

 C:\Python27\Scripts 的目录

//  :    <DIR>          .

//  :    <DIR>          ..

//  :            , easy_install-2.7.exe

//  :            , easy_install.exe

//  :            , pip.exe

//  :            , pip2..exe

//  :            , pip2.exe

                个文件        , 字节

                个目录 ,,, 可用字节

C:\Python27\Scripts>pip install beautifulsoup4

You are using pip version 7.0., however version 8.0. is available.

You should consider upgrading via the 'pip install --upgrade pip' command.

Collecting beautifulsoup4

  Downloading beautifulsoup4-4.4.-py2-none-any.whl (81kB)

    % |████████████████████████████████| 81kB 111kB/s

Installing collected packages: beautifulsoup4

Successfully installed beautifulsoup4-4.4.

<module 'bs4' from 'C:\Python27\lib\site-packages\bs4\__init__.pyc'>