python - 如何合并两个漂亮的汤标签？

Question

我正在拉所有 <ul>出现在页面正文中并连接 <p> 的标签紧接在它们之前的标记。

text = BeautifulSoup(requests.get('http://www.getspokal.com/how-to-create-content-based-on-your-customers-pain-points/', timeout=7.00).text)

我使用带有漂亮汤的函数来提取适当的标签:

def funct(tag):
        return tag.name == 'ul' and not tag.attrs and not tag.li.attrs and not tag.a
ul_tags = text.find_all(funct)

这拉三个 <ul>标签。现在找到 <p>紧接在这些 <ul> 之前的标签标记和连接:

combined = [(ul.find_previous("p") + ul) for ul in ul_tags]

这会产生一个错误

TypeError: unsupported operand type(s) for +: 'Tag' and 'Tag'

其中一个结果应该是这样的:

<p>For example, if you’re in the pet food industry, you might ask your existing customers:</p<ul><li>What challenges do you face on a regular basis with regards your pets?</li><li>Are there any underlying health issues that your pets have that causes you concern?</li><li>What is your biggest struggle when choosing appropriate food for your pet? </li></ul>

列表理解哪里出错了？

Answer 1

您应该将列表理解更改为:

combined = [(str(ul.find_previous("p")) + str(ul)) for ul in ul_tags]

问题是ul不是字符串，它实际上是一个bs4.element.Tag，所以你必须先转换它。