使用解析器替换所有IMG元素的SRC [英] Replace SRC of all IMG elements using Parser

问题描述

我正在寻找一种方法来替换不使用正则表达式的所有IMG标记中的SRC属性。 （希望使用默认Python安装中包含的任何现成的HTML解析器）我需要减少可能来源的数据源：

I am looking for a way to replace the SRC attribute in all IMG tags not using Regular expressions. (Would like to use any out-of-the box HTML parser included with default Python install) I need to reduce the source from what ever it may be to:

<img src="cid:imagename">

我试图将所有src标记替换为HTML电子邮件附件的cid我还需要更改任何源代码，所以它只是没有路径或扩展名的文件名。

I am trying to replace all src tags to point to the cid of an attachment for an HTML email so I will also need to change whatever the source is so it's simply the file name without the path or extension.

推荐答案

HTML标准库中的HTML解析器，但它不是非常有用，并且自从Python 2.6以来已经被弃用了。使用 BeautifulSoup 做这类事情非常简单：

There is a HTML parser in the Python standard library, but it’s not very useful and it’s deprecated since Python 2.6. Doing this kind of things with BeautifulSoup is really easy:

from BeautifulSoup import BeautifulSoup
from os.path import basename, splitext
soup = BeautifulSoup(my_html_string)
for img in soup.findAll('img'):
    img['src'] = 'cid:' + splitext(basename(img['src']))[0]
my_html_string = str(soup)

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