使用BeautifulSoup提取锚标记值

时间:2011-07-23 20:15:12

标签: python beautifulsoup

我正在尝试使用BeautifulSoup从网站中提取值。这些值基本上是搜索结果,在这种情况下是特定区域的药房。我试图从中提取的页面源包含以下HTML:

<a id="body_BusinessSearchResultSummaryList_repBusinessList_lnkBusinessProfile_1" class="sr-item-link" href="http://www.mocality.co.ke/b/applegene-pharmacy/applegene/brooklyn/health-and-beauty-medical/_/airtime-chemist-cosmetics-medicine/d42f7388-3f9b-4a34-8971-dc6ae9692586?skw=pharmacys&amp;rcnt=10">Applegene Pharmacy</a>

锚标记的id根据结果递增,因此下一个具有2:

<a id="body_BusinessSearchResultSummaryList_repBusinessList_lnkBusinessProfile_2" class="sr-item-link" href="http://www.mocality.co.ke/b/natros-pharmacy/natrosoh/innercore/medical-services/_/_/0cfe6a11-7bee-41f8-8d2e-6a472557201f?skw=pharmacys&amp;rcnt=10">Natros Pharmacy</a>

我已经使用了findAll('a')但是它给了我所有的锚标签。我如何使用BeautifulSoup来解析它并提取特定锚标记的值?

2 个答案:

答案 0 :(得分:4)

from BeautifulSoup import BeautifulSoup

txt = '''<a id="body_BusinessSearchResultSummaryList_repBusinessList_lnkBusinessProfile_1" class="sr-item-link" href="http://www.mocality.co.ke/b/natros-pharmacy/natrosoh/innercore/medical-services/_/_/0cfe6a11-7bee-41f8-8d2e-6a472557201f?skw=pharmacys&amp;rcnt=10">Natros Pharmacy</a>
<a id="body_BusinessSearchResultSummaryList_repBusinessList_lnkBusinessProfile_2" class="sr-item-link
" href="http://www.mocality.co.ke/b/natros-pharmacy/natrosoh/innercore/medical-services/_/_/0cfe6a11-
7bee-41f8-8d2e-6a472557201f?skw=pharmacys&amp;rcnt=10">Natros Pharmacy</a>'''
match = 'body_BusinessSearchResultSummaryList_repBusinessList_lnkBusinessProfile'

soup = BeautifulSoup(txt)
for a in soup.findAll('a'):
        if a.has_key('id') and a['id'].startswith(match):
               print a['href'], a.contents

答案 1 :(得分:0)

使用find的关键字参数来限制属性:

find("a", id="whatever_1")

您也可以使用(布尔)函数调用find

def isRight(tag):
    return ...

findAll(isRight)