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[英]What is the return type of the find_all method in Beautiful Soup?
[英]Python: find_all in Beautiful soup does not return what is expected
我有這樣的html:
<ul class='Whs-nw M-0 items'>
<li>
<a href='/news/stocks-hold-slight-gains-amid-140642829.html' class='D-b Fz-s Fw-400' data-ylk='rspns:nav;t3:sub0;elm:hdln;elmt:ct;itc:0;pkgt:15;g:e3b49674-fd8a-3acb-9395-4ac0811af672;ct:1;cpos:2;'>
<div class='P-0 Whs-n'>
<div class='M-0 Pt-2 Ov-h'>
<p class='M-0 D-i'>Dow closes down more than 150 as Wal-Mart, Boeing weigh</p>
</div>
</div>
</a>
</li>
...
</ul>
我正在嘗試使用Beautifulsoup
吸引/news/stocks-hold-slight-gains-amid-140642829.html
而我這樣做是:
soup = BeautifulSoup(html)
tmp= soup.find_all('ul', attrs={'class' : 'Whs-nw M-0 items'})
但是當我看着它的時候, tmp
是空的。 難道我做錯了什么?
確保您使用的是bs4
,當我在舊版本上使用它時會失敗,但在新版本上可以使用。 因此,您應該這樣做:
from bs4 import BeautifulSoup
...
soup = BeautifulSoup(html)
tmp= soup.find_all('ul', attrs={'class' : 'Whs-nw M-0 items'})
不是from BeautifulSoup import BeautifulSoup
。
嘗試tmp= soup.findAll('ul', {'class' : 'Whs-nw M-0 items'})
或tmp= soup.find_all('ul', attrs={'class' : 'Whs-nw M-0 items'})
工作代碼
import urllib2
from bs4 import BeautifulSoup
response = urllib2.urlopen('http://finance.yahoo.com/')
html = response.read()
soup = BeautifulSoup(html, 'html.parser')
tmp= soup.findAll('ul', {'class' : 'Whs-nw M-0 items'})
for i in tmp:
print i.get_text()
請嘗試以下操作:
temp = soup.find('ul', attrs={'class': 'Whs-nw M-0 items'}).find('a')['href']
或者您可以這樣做:
soup = BeautifulSoup(html)
temp = soup.find('a', {'class': 'D-b Fz-s Fw-400'})['href']
print temp
輸出:/news/stocks-hold-slight-gains-amid-140642829.html
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