去除特定物品Python靓汤

Question

我怎样才能去掉这个，剩下的用python和beautiful soup，其他的项目需要保留在td中

<td style="background:#aaccff" width="50"></td>
<td align="left" style="background:#aaccff" width="150">Device Type</td>
<td align="left" style="background:#aaccff" width="115">IP Address</td>
<td align="left" style="background:#aaccff" width="100">Device Name</td>
<td align="left" style="background:#aaccff" width="215">Notes</td>
<td width="50"></td>

这是完整的代码

^{pr2}$

以下是我目前所掌握的代码

from ntlm import HTTPNtlmAuthHandler
from bs4 import BeautifulSoup
import requests, os, bleach, urllib2, cookielib

os.system('clear')
user = 'user'
password = "pass"
url = "url"

cookies = cookielib.CookieJar()
passman = urllib2.HTTPPasswordMgrWithDefaultRealm()
passman.add_password(None, url, user, password)
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cookies),HTTPNtlmAuthHandler.HTTPNtlmAuthHandler(passman))

pagedata=opener.open(url)
soup=BeautifulSoup(pagedata)

def myfunction(b):
table = b.find('ul', {'class': 'dfwp-column dfwp-list'})

for a in table.findAll('a'):
    [a.decompose() for a in table("a")]
for tr in table.findAll('tr'):
    for td in tr.findAll('td'):

        print td

myfunction(soup)

这是电流输出

设备类型 IP地址 设备名称 注释

音频码网关 172.31.31.2条

FXO公司

设备类型 IP地址 设备名称 注释

IC服务器 172.31.56.151 IND056GIC151 NAT'd IP=PENDING MPLS，语音IP=172.31.52.151

IC服务器 172.31.56.152 索引056GIC152 NAT'd IP=PENDING MPLS，语音IP=172.31.52.152

媒体服务器 IND1106HMS07 IND1106HMS07

媒体服务器 IND1106HMS07 IND1106HMS07

Answer 1

一般来说，当人们问到如何用bs4来“删除”某些内容时，他们实际上只是在问如何不将其包含在find操作中。在

您希望排除额外的空格（即带有tag.text == ''的标记）和这四个“column header”标记。可以通过CSS选择器执行后者，但前者需要显式过滤。因此，同时做这两件事是最容易的，而且在我看来更具声明性：

soup = BeautifulSoup(that_long_html_you_gave)

blacklist = {'Device Type','IP Address','Device Name','Notes'}

table = soup.body # to match your variable name.  I think.

table.find_all(lambda tag: tag.text and tag.text not in blacklist)
Out[45]: 
[<td align="left" width="150">AudioCodes Gateway</td>,
 <td align="left" width="115">172.31.31.2</td>,
 <td align="left" width="215">FXO</td>,
 <td align="left" width="150">IC Server</td>,
 <td align="left" width="115">172.31.56.151</td>,
 <td align="left" width="100">IND056GIC151</td>,
 <td align="left" width="215">NAT'd IP = PENDING MPLS, Voice IP = 172.31.52.151</td>,
 <td align="left" width="150">IC Server</td>,
 <td align="left" width="115">172.31.56.152</td>,
 <td align="left" width="100">IND056GIC152</td>,
 <td align="left" width="215">NAT'd IP = PENDING MPLS, Voice IP = 172.31.52.152</td>,
 <td align="left" width="150">Media Server</td>,
 <td align="left" width="115">IND1106HMS07</td>,
 <td align="left" width="100">IND1106HMS07</td>,
 <td align="left" width="150">Media Server</td>,
 <td align="left" width="115">IND1106HMS07</td>,
 <td align="left" width="100">IND1106HMS07</td>]