我有以下html(所有元素name *,name **和name ***都是未知的):
<div class="one">nameA</a>
<div class="two">nameAA</a>
<a class="three">nameAAA</a>
<a class="three">nameAAB</a>
</div>
<div class="two">nameAB</a>
<a class="three">nameABA</a>
<a class="three">nameABB</a>
</div>
</div>
<div class="one">nameB</a>
<div class="two">nameBA</a>
<a class="three">nameBAA</a>
<a class="three">nameBAB</a>
</div>
<div class="two">nameBB</a>
<a class="three">nameBBA</a>
<a class="three">nameBBB</a>
</div>
</div>
并尝试制作此词典:
名称= {nameA:[nameAAA,nameAAB,nameABA,nameABB], nameB:[nameBAA,nameBAB,nameBBA,nameBBB]}
我正在使用beautifulSoup选择函数,但无法在“三个”后代类中的名称之间链接,它返回的是其在“一个”类中其祖先的名称。 实际上,我的代码中的结果是: wordOnesText = [nameA,nameB] wordThreesText = [nameAAA,nameAAB,nameABA,nameABB,nameBAA,nameBAB,nameBBA,nameBBB]
res = requests.get('address')
soup = bs4.BeautifulSoup(res.text, features='html.parser')
wordOnes = soup.select('.one')
wordThrees = soup.select('.three') or soup.select('.one > .two > .three')
您能帮我在字典中链接这两个列表吗?
答案 0 :(得分:1)
您可以尝试使用此脚本。它利用itertools.groupby
(doc)将元素分组以键值:
data = '''<a class="one">nameA</a>
<a class="two">nameAA</a>
<a class="three">nameAAA</a>
<a class="three">nameAAB</a>
<a class="two">nameAB</a>
<a class="three">nameABA</a>
<a class="three">nameABB</a>
<a class="one">nameB</a>
<a class="two">nameBA</a>
<a class="three">nameBAA</a>
<a class="three">nameBAB</a>
<a class="two">nameBB</a>
<a class="three">nameBBA</a>
<a class="three">nameBBB</a>'''
from bs4 import BeautifulSoup
from itertools import groupby
soup = BeautifulSoup(data, 'html.parser')
def get_key_values(soup):
current_key = None
for v, g in groupby(soup.select('.one, .three'), lambda k: 'one' in k['class']):
if v is True:
current_key = next(g).text
else:
yield current_key, [i.text for i in g]
out = dict(get_key_values(soup))
from pprint import pprint
pprint(out)
打印:
{'nameA': ['nameAAA', 'nameAAB', 'nameABA', 'nameABB'],
'nameB': ['nameBAA', 'nameBAB', 'nameBBA', 'nameBBB']}
答案 1 :(得分:1)
尝试以下代码。
itemdict={}
soup=BeautifulSoup(data,'lxml')
for item in soup.select('.one'):
itemlist = []
name=item.contents[0].strip()
for child in item.select('.three'):
itemlist.append(child.text)
itemdict[name]=itemlist
print(itemdict)
这应该打印。
{'nameA': ['nameAAA', 'nameAAB', 'nameABA', 'nameABB'], 'nameB': ['nameBAA', 'nameBAB', 'nameBBA', 'nameBBB']}