问题
This code:
from bs4 import BeautifulSoup
Doesn't work, and gives this error :
raise AttributeError, "'%s' object has no attribute '%s'" % (self.__class__.__name__,attr)
^
SyntaxError: invalid syntax
What should i do ?
回答1:
You should be using pip to install, so you can simply do
pip install beautifulsoup4
That will install the latest BS4, which is 4.3.1 as of 2013-08-15. It supports Python 3.
回答2:
Also, if you are using python3, you should use:
pip3 install beautifulsoup4
回答3:
For Windows... Go to start menu type cmd right click on cmd icon click run as administrator then type pip install beautifulsoup4.
It likely will fail to install correctly if you fail to do the above step as even though your windows user is an admin account it does not run all apps as administrator.
Notice the difference if you simply just open cmd without the run as admin.
Remember also when using it like so...
from bs4 import beautifulsoup4
Will not work as it is not correctly formatted.
from bs4 import BeautifulSoup4
Will work correctly as it is CaseSensitive.
来源：https://stackoverflow.com/questions/18831380/how-can-i-from-bs4-import-beautifulsoup