从标签beautifulsoup python中提取类名
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extract class name from tag beautifulsoup python
提问by kegewe
I have the following HTML code:
我有以下 HTML 代码：
<td class="image">
<a href="/target/tt0111161/" title="Target Text 1">
<img alt="target img" height="74" src="img src url" title="image title" width="54"/>
</a>
</td>
<td class="title">
<span class="wlb_wrapper" data-caller-name="search" data-size="small" data-tconst="tt0111161">
</span>
<a href="/target/tt0111161/">
Other Text
</a>
<span class="year_type">
(2013)
</span>
I am trying to use beautiful soup to parse certain elements into a tab-delimited file. I got some great help and have:
我正在尝试使用漂亮的汤将某些元素解析为制表符分隔的文件。我得到了一些很大的帮助，并且有：
for td in soup.select('td.title'):
span = td.select('span.wlb_wrapper')
if span:
print span[0].get('data-tconst') # To get `tt0082971`
Now I want to get "Target Text 1" .
现在我想得到 "Target Text 1" 。
I've tried some things like the above text such as:
我已经尝试了一些类似上面的文字，例如：
for td in soup.select('td.image'): #trying to select the <td class="image"> tag
img = td.select('a.title') #from inside td I now try to look inside the a tag that also has the word title
if img:
print img[2].get('title') #if it finds anything, then I want to return the text in class 'title'
采纳答案by Jared Messenger
If you're trying to get a different td based on the class (i.e. td class="image" and td class="title" you can use beautiful soup as a dictionary to get the different classes.
如果您试图根据类（即 td class="image" 和 td class="title"）获得不同的 td，您可以使用美丽的汤作为字典来获取不同的类。
This will find all the td class="image" in the table.
这将在表中找到所有 td class="image"。
from bs4 import BeautifulSoup
page = """
<table>
<tr>
<td class="image">
<a href="/target/tt0111161/" title="Target Text 1">
<img alt="target img" height="74" src="img src url" title="image title" width="54"/>
</a>
</td>
<td class="title">
<span class="wlb_wrapper" data-caller-name="search" data-size="small" data-tconst="tt0111161">
</span>
<a href="/target/tt0111161/">
Other Text
</a>
<span class="year_type">
(2013)
</span>
</td>
</tr>
</table>
"""
soup = BeautifulSoup(page)
tbl = soup.find('table')
rows = tbl.findAll('tr')
for row in rows:
cols = row.find_all('td')
for col in cols:
if col.has_attr('class') and col['class'][0] == 'image':
hrefs = col.find_all('a')
for href in hrefs:
print href.get('title')
elif col.has_attr('class') and col['class'][0] == 'title':
spans = col.find_all('span')
for span in spans:
if span.has_attr('class') and span['class'][0] == 'wlb_wrapper':
print span.get('data-tconst')
回答by hemanth
span.wlb_wrapperis a selector used to select <span class="wlb_wrapper" data-caller-name="search" data-size="small" data-tconst="tt0111161">. Refer this& thisfor more information on selectors
span.wlb_wrapper是用于选择的选择器<span class="wlb_wrapper" data-caller-name="search" data-size="small" data-tconst="tt0111161">。有关选择器的更多信息，请参阅this& this
change this in your python code span = td.select('span.wlb_wrapper')to span = td.select('span')& also span = td.select('span.year_type')and see what it returns.
在你的 python 代码中将其更改span = td.select('span.wlb_wrapper')为span = td.select('span')&span = td.select('span.year_type')并查看它返回的内容。
If you try above and analyze what spanholds you will get what you want.
如果你尝试上面并分析什么是span成立的，你就会得到你想要的。
