BeautifulSoup在< img alt标签内查找文本 [英] BeautifulSoup to find text within <img alt tag

问题描述

这是我从这行Python代码中得到的信息

Here is what I get back from this Python line of code

listm = soup.findAll('td',{'class':'thumb'})

当我遍历listm时，这是一个项目的示例...

when I iterate over the listm, here is an example of a item...

<a href="/property-search/property-details/1021206?StrtNum=1507"><img alt="1507 BOSTWICK LN" src="/res/slir/w75-h57-c4:3/propertyimages/20120904/BB/DSCN0738.JPG"/></a>

但是，我真正想要的是<img alt=

However, what I really want is the "1507 BOSTWICK LN" within the <img alt=

我已经尝试过.get_text并返回一个空白，我已经尝试过 lista = soup.findAll('td',{'class':'thumb'},{'alt':'img'})，以及其他一些无法理解的内容.

I have tried the .get_text with returns a blank, I've tried lista = soup.findAll('td',{'class':'thumb'},{'alt':'img'}), and several other variations that do not get me the text.

我想让BeautifulSoup返回文本，还是使用正则表达式?我对RE的知识是zilch，任何输入将不胜感激！

I would like to have BeautifulSoup return the text, or would a regular expression work? My knowledge of of RE is zilch, any input would greatly be appreciated!!

推荐答案

尝试一下:

listm = soup.findAll('td',{'class':'thumb'})
for elem in listm:
    print elem('img')[0]['alt']

这应该在每个td中找到img标记，并打印alt属性的值.

This should find the img tag within each td and print the values of the alt attribute.

您不应该假定img标签的存在.改为执行此操作:

You should not assume the existence of the img tag. Do this instead:

listm = soup.findAll('td',{'class':'thumb'})
for elem in listm:
    imgs = elem('img')
    if imgs:
        print imgs['alt']

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