BeautifulSoup - 为标签添加属性 [英] BeautifulSoup - adding attribute to tag
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问题描述
这里的问题，我想在这里添加一个属性到标签，想知道我是否可以使用BeautifulSoup方法，或者应该使用纯字符串操作。
HTML代码现在看起来如何：
< option value =BC> BRITISH COLUMBIA< / option>
我希望它看起来如何：
< option selected =value =BC> BRITISH COLUMBIA< / option>
感谢您的帮助！
解决方案
用BeautifulSoup轻松：）
>>> from bs4 import BeautifulSoup
>>>汤= BeautifulSoup（'< option value =BC> BRITISH COLUMBIA< / option>'）
>>> soup.find（'option'）['selected'] =''
>>>打印汤
< html>< body>< option selected =value =BC> BRITISH COLUMBIA< / option>< / body>< / html>
这些属性可以看作字典。所以我们有 {'value'：'BC'} ，并且为一个字典添加一个值，我们只需做 dict [key] = value
Question for you here, I'm trying to add an attribute to a tag here, wondering if I can use a BeautifulSoup method, or should use plain string manipulation.
An example would probably make this clear, as it's a weird explanation.
How the HTML Code looks now:
<option value="BC">BRITISH COLUMBIA</option>
How I would like it to look:
<option selected="" value="BC">BRITISH COLUMBIA</option>
Thanks for the help!
解决方案
Easy with BeautifulSoup :)
>>> from bs4 import BeautifulSoup
>>> soup = BeautifulSoup('<option value="BC">BRITISH COLUMBIA</option>')
>>> soup.find('option')['selected'] = ''
>>> print soup
<html><body><option selected="" value="BC">BRITISH COLUMBIA</option></body></html>
The attributes can be looked at as a dictionary. So we have {'value':'BC'}, and to add a value to a dictionary, we just do dict[key] = value
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