搜索和在HTML中使用BeautifulSoup替换 [英] Search and Replace in HTML with BeautifulSoup

问题描述

我想用BeautfulSoup搜索和替换＆LT; \\ A＆GT; 与＆LT; \\ A＆GT;＆LT; BR＆GT; 。我知道如何使用的urllib2 打开，然后分析提取所有＆LT; A＆GT; 标记。我想要做的是搜索和替换的结束标记加上休息结束标记。任何帮助，多AP preciated。

I want to use BeautfulSoup to search and replace <\a> with <\a><br>. I know how to open with urllib2 and then parse to extract all the <a> tags. What I want to do is search and replace the closing tag with the closing tag plus the break. Any help, much appreciated.

修改

我会假设这将是类似于：

I would assume it would be something similar to:

soup.findAll('a').

在文档中，有一个：

find(text="ahh").replaceWith('Hooray')

所以我会假设这将是大致相同的：

So I would assume it would be along the lines of:

soup.findAll(tag = '</a>').replaceWith(tag = '</a><br>')

但是，这并不工作，蟒蛇帮助（）并没有给太多

But that doesn't work and the python help() doesn't give much

推荐答案

这将插入一个＆LT; BR＆GT; 每结束后的标记 ＆LT; A＆GT; ...＆LT; / A＆GT; 元素：

This will insert a <br> tag after the end of each <a>...</a> element:

from BeautifulSoup import BeautifulSoup, Tag

# ....

soup = BeautifulSoup(data)
for a in soup.findAll('a'):
    a.parent.insert(a.parent.index(a)+1, Tag(soup, 'br'))

您不能使用 soup.findAll（标签='＆LT; / A＆GT;'），因为BeautifulSoup不就完了标签单独操作 - 它们被认为是同一元素的一部分。

You can't use soup.findAll(tag = '</a>') because BeautifulSoup doesn't operate on the end tags separately - they are considered part of the same element.

如果你想要把＆LT; A＆GT; 在＆LT元素; P＆GT; 元素为你问在评论中，你可以使用这样的：

If you wanted to put the <a> elements inside a <p> element as you ask in a comment, you can use this:

for a in soup.findAll('a'):
    p = Tag(soup, 'p') #create a P element
    a.replaceWith(p)   #Put it where the A element is
    p.insert(0, a)     #put the A element inside the P (between <p> and </p>)

同样，你不创建＆LT; P＆GT; 和＆LT; / P＆GT; 分开，因为他们是同一事物的一部分。

Again, you don't create the <p> and </p> separately because they are part of the same thing.

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