5

次のような複数のdivを持つHTMLページがあります

<div class="article-additional-info">
A peculiar situation arose in the Supreme Court on Tuesday when two lawyers claimed to be the representative of one of the six accused in the December 16 gangrape case who has sought shifting of t...
<a class="more" href="http://www.thehindu.com/news/national/gangrape-case-two-lawyers-claim-to-be-engaged-by-accused/article4332680.ece">
<span class="arrows">»</span>
</a>
</div>

<div class="article-additional-info">
Power consumers in the city will have to brace for spending more on their monthly bills as all three power distribution companies – the Anil Ambani-owned BRPL and BYPL and the Tatas-owned Tata Powe...
<a class="more" href="http://www.thehindu.com/news/cities/Delhi/power-discoms-demand-yet-another-hike-in-charges/article4331482.ece">
<a class="commentsCount" href="http://www.thehindu.com/news/cities/Delhi/power-discoms-demand-yet-another-hike-in-charges/article4331482.ece#comments">
</div>

<a href=>そして、クラスですべてのdivの値を取得する必要がありますarticle-additional-info 私はBeautifulSoupに慣れていません

だから私はURLが必要です

"http://www.thehindu.com/news/national/gangrape-case-two-lawyers-claim-to-be-engaged-by-accused/article4332680.ece"
"http://www.thehindu.com/news/cities/Delhi/power-discoms-demand-yet-another-hike-in-charges/article4331482.ece"

これを達成するための最良の方法は何ですか？

4

4 に答える 4

8

基準によると、(2 つではなく) 3 つの URL が返されます。3 つ目は除外しますか?

基本的な考え方は、HTML を反復処理して、クラス内の要素のみを取り出してから、そのクラス内のすべてのリンクを反復処理して、実際のリンクを取り出すことです。

In [1]: from bs4 import BeautifulSoup

In [2]: html = # your HTML

In [3]: soup = BeautifulSoup(html)

In [4]: for item in soup.find_all(attrs={'class': 'article-additional-info'}):
   ...:     for link in item.find_all('a'):
   ...:         print link.get('href')
   ...:         
http://www.thehindu.com/news/national/gangrape-case-two-lawyers-claim-to-be-engaged-by-accused/article4332680.ece
http://www.thehindu.com/news/cities/Delhi/power-discoms-demand-yet-another-hike-in-charges/article4331482.ece
http://www.thehindu.com/news/cities/Delhi/power-discoms-demand-yet-another-hike-in-charges/article4331482.ece#comments

これにより、検索は class タグを持つ要素のみに制限されarticle-additional-info、その内部ですべてのアンカー ( a) タグが検索され、対応するhrefリンクが取得されます。

于 2013-01-23T00:34:55.537 に答える
2

ドキュメントを操作した後、次のようにしました。回答ありがとうございます。感謝します

>>> import urllib2
>>> f = urllib2.urlopen('http://www.thehindu.com/news/cities/delhi/?union=citynews')
>>> soup = BeautifulSoup(f.fp)
>>> for link in soup.select('.article-additional-info'):
...   print link.find('a').attrs['href']
... 
http://www.thehindu.com/news/cities/Delhi/airport-metro-express-is-back/article4335059.ece
http://www.thehindu.com/news/cities/Delhi/91-more-illegal-colonies-to-be-regularised/article4335069.ece
http://www.thehindu.com/news/national/gangrape-case-two-lawyers-claim-to-be-engaged-by-accused/article4332680.ece
http://www.thehindu.com/news/cities/Delhi/power-discoms-demand-yet-another-hike-in-charges/article4331482.ece
http://www.thehindu.com/news/cities/Delhi/nurses-women-groups-demand-safety-audit-of-workplaces/article4331470.ece
http://www.thehindu.com/news/cities/Delhi/delhi-bpl-families-to-get-12-subsidised-lpg-cylinders/article4328990.ece
http://www.thehindu.com/news/cities/Delhi/shias-condemn-violence-against-religious-minorities/article4328276.ece
http://www.thehindu.com/news/cities/Delhi/new-archbishop-of-delhi-takes-over/article4328284.ece
http://www.thehindu.com/news/cities/Delhi/delhi-metro-to-construct-subway-without-disrupting-traffic/article4328290.ece
http://www.thehindu.com/life-and-style/Food/going-for-the-kill-in-patparganj/article4323210.ece
http://www.thehindu.com/news/cities/Delhi/fire-at-janpath-bhavan/article4335068.ece
http://www.thehindu.com/news/cities/Delhi/fiveyearold-girl-killed-as-school-van-overturns/article4335065.ece
http://www.thehindu.com/news/cities/Delhi/real-life-stories-of-real-women/article4331483.ece
http://www.thehindu.com/news/cities/Delhi/women-councillors-allege-harassment-by-male-councillors-of-rival-parties/article4331471.ece
http://www.thehindu.com/news/cities/Delhi/airport-metro-resumes-today/article4331467.ece
http://www.thehindu.com/news/national/hearing-today-on-plea-to-shift-trial/article4328415.ece
http://www.thehindu.com/news/cities/Delhi/protestors-demand-change-in-attitude-of-men-towards-women/article4328277.ece
http://www.thehindu.com/news/cities/Delhi/bjp-promises-5-lakh-houses-for-poor-on-interestfree-loans/article4328280.ece
http://www.thehindu.com/life-and-style/metroplus/papad-bidi-and-a-dacoit/article4323219.ece
http://www.thehindu.com/life-and-style/Food/gharana-of-food-not-just-music/article4323212.ece
>>>
于 2013-01-23T04:08:40.897 に答える
1 
from bs4 import BeautifulSoup as BS
html = # Your HTML
soup = BS(html)
for text in soup.find_all('div', class_='article-additional-info'):
    for links in text.find_all('a'):
        print links.get('href')

どちらが印刷されますか:

http://www.thehindu.com/news/national/gangrape-case-two-lawyers-claim-to-be-engaged-by-accused/article4332680.ece    
http://www.thehindu.com/news/cities/Delhi/power-discoms-demand-yet-another-hike-in-charges/article4331482.ece    
http://www.thehindu.com/news/cities/Delhi/power-discoms-demand-yet-another-hike-in-charges/article4331482.ece#comments
于 2013-01-23T00:38:20.753 に答える
0 
In [4]: for item in soup.find_all(attrs={'class': 'article-additional-info'}):
...:     for link in item.find_all('a'):
...:         print link.get('href')
...: 
http://www.thehindu.com/news/national/gangrape-case-two-lawyers-claim-to-be-engaged-by-accused/article4332680.ece    
http://www.thehindu.com/news/cities/Delhi/power-discoms-demand-yet-another-hike-in-charges/article4331482.ece    
http://www.thehindu.com/news/cities/Delhi/power-discoms-demand-yet-another-hike-in-charges/article4331482.ece#comments
于 2014-02-07T11:05:16.777 に答える