Question

<div class="members_box_second">
                    <div class="members_box0">
                        <p>1</p>
                    </div>
                    <div class="members_box1">
                        <p class="clear"><b>Name:</b><span>Mr.Jagadhesan.S</span></p>
                        <p class="clear"><b>Designation:</b><span>Proprietor</span></p>
                        <p class="clear"><b>CODISSIA - Designation:</b><span>(Founder President, CODISSIA)</span></p>
                        <p class="clear"><b>Name of the Industry:</b><span>Govardhana Engineering Industries</span></p>
                        <p class="clear"><b>Specification:</b><span>LIFE</span></p>
                        <p class="clear"><b>Date of Admission:</b><span>19.12.1969</span></p>
                    </div>
                    <div class="members_box2">
                        <p>Ukkadam South</p>
                        <p class="clear"><b>Phone:</b><span>2320085, 2320067</span></p>
                        <p class="clear"><b>Email:</b><span><a href="mailto:jagadhesan@infognana.com">jagadhesan@infognana.com</a></span></p>                       
                    </div>
</div>
<div class="members_box">
                    <div class="members_box0">
                        <p>2</p>
                    </div>
                    <div class="members_box1">
                        <p class="clear"><b>Name:</b><span>Mr.Somasundaram.A</span></p>
                        <p class="clear"><b>Designation:</b><span>Proprietor</span></p>

                        <p class="clear"><b>Name of the Industry:</b><span>Everest Engineering Works</span></p>
                        <p class="clear"><b>Specification:</b><span>LIFE</span></p>
                        <p class="clear"><b>Date of Admission:</b><span>19.12.1969</span></p>
                    </div>
                    <div class="members_box2">
                        <p>Alagar Nivas, 284 NSR Road</p>
                        <p class="clear"><b>Phone:</b><span>2435674</span></p>      
                        <h4>Factory Address</h4>
                        Coimbatore - 641 027
                        <p class="clear"><b>Phone:</b><span>2435674</span></p>
                    </div>
</div>

我有上述结构。由此我试图仅在div members_box1 和 members_box2 的class内删除文字。

我有以下脚本，它只从members_box1

获取数据

from bs4 import BeautifulSoup
import urllib2
import csv
import re
page = urllib2.urlopen("http://www.codissia.com/member/members-directory/?mode=paging&Keyword=&Type=&pg=1")
soup = BeautifulSoup(page.read())
for eachuniversity in soup.findAll('div',{'class':'members_box1'}):
    data =  [re.sub('\s+', ' ', text).strip().encode('utf8') for text in eachuniversity.find_all(text=True) if text.strip()]
    print '\n'

这就是我尝试从两个方框中获取数据的方式

from bs4 import BeautifulSoup
import urllib2
import csv
import re
page = urllib2.urlopen("http://www.codissia.com/member/members-directory/?mode=paging&Keyword=&Type=&pg=1")
soup = BeautifulSoup(page.read())
eachbox2 = soup.findAll('div ', {'class':'members_box2'})
for eachuniversity in soup.findAll('div',{'class':'members_box1'}):
    data =  eachbox2 + [re.sub('\s+', ' ', text).strip().encode('utf8') for text in eachuniversity.find_all(text=True) if text.strip()]
    print data

但我得到的结果与 members_box1

相同

更新

我希望输出像这样（单行）进行迭代

Name:,Mr.Srinivasan.N,Designation:,Proprietor,CODISSIA - Designation:,(Past President, CODISSIA),Name of the Industry:,Arian Soap Manufacturing Co,Specification:,LIFE,Date of Admission:,19.12.1969, "Parijaat" 26/1Shanker Mutt Road, Basavana Gudi,Phone:,2313861

但我得到如下

Name:,Mr.Srinivasan.N,Designation:,Proprietor,CODISSIA - Designation:,(Past President, CODISSIA),Name of the Industry:,Arian Soap Manufacturing Co,Specification:,LIFE,Date of Admission:,19.12.1969
"Parijaat" 26/1Shanker Mutt Road, Basavana Gudi,Phone:,2313861

Answer 1

问题是，您要为每个eachbox2添加data，而不是要循环播放的内容列表。

最重要的是，你有一个迷路空间'div '而不是'div'，导致eachbox2成为空列表。

试试这个：

eachbox1 = soup.findAll('div', {'class':'members_box1'})
eachbox2 = soup.findAll('div', {'class':'members_box2'})
for eachuniversity in eachbox1 + eachbox2:
    data =  [re.sub('\s+', ' ', text).strip().encode('utf8') for text in eachuniversity.find_all(text=True) if text.strip()]

这不是最好的做事方式，它只是对现有做事方式的最简单的解决方法。 BeautifulSoup提供了在一个查询中搜索多个内容的各种不同方法 - 例如，您可以基于值('members_box1', 'members_box2')或正则表达式（re.compile(r'members_box[12]')）或过滤函数（{{1）进行搜索}}）...

Answer 2

您可以使用regex来匹配members_box1或members_box2：

import re
eachbox = soup.findAll('div', {'class':re.compile(r'members_box[12]')})
for eachuniversity in eachbox:

例如，

import bs4 as bs
import urllib2
import re
import csv

page = urllib2.urlopen("http://www.codissia.com/member/members-directory/?mode=paging&Keyword=&Type=&pg=1")
content = page.read()
soup = bs.BeautifulSoup(content)

with open('/tmp/ccc.csv', 'wb') as f:
    writer = csv.writer(f, delimiter=',', lineterminator='\n', )
    eachbox = soup.find_all('div', {'class':re.compile(r'members_box[12]')})
    for pair in zip(*[iter(eachbox)]*2):
        writer.writerow([text.strip() for item in pair for text in item.stripped_strings])

请注意，您必须删除

中div后的杂散空间

soup.findAll('div ')

以便找到任何<div>代码。

上面的代码使用非常方便的grouper idiom：

zip(*[iter(iterable)]*n)

此表达式从n收集iterable项，并将它们分组为元组。因此，此表达式允许您迭代n项的块。我试图解释how the grouper idiom works here。

使用美丽的汤蟒蛇刮

2 个答案: