python - BeautifulSoup' 没有属性 'HTML_ENTITIES

Question

我最近在 Windows 机器上将 BeautifulSoup 从 3.0 版升级到 4.1 版。

我现在遇到一个奇怪的错误:

File "C:\path\to\myscript.py", line 23
0, in soupify
    return BeautifulSoup(html, convertEntities=BeautifulSoup.HTML_ENTITIES)
AttributeError: type object 'BeautifulSoup' has no attribute 'HTML_ENTITIES'

下面是导致抛出异常的代码片段:

def soupify(html):
    return BeautifulSoup(html, convertEntities=BeautifulSoup.HTML_ENTITIES)

BS 的文档没有提及构造函数签名如何从 v3 更改为 v4。我该如何解决这个问题？

Answer 1

An incoming HTML or XML entity is always converted into the corresponding Unicode character. Beautiful Soup 3 had a number of overlapping ways of dealing with entities, which have been removed. The BeautifulSoup constructor no longer recognizes the smartQuotesTo or convertEntities arguments. (Unicode, Dammit still has smart_quotes_to, but its default is now to turn smart quotes into Unicode.)

If you want to turn those Unicode characters back into HTML entities on output, rather than turning them into UTF-8 characters, you need to use an output formatter.

来源:http://www.crummy.com/software/BeautifulSoup/bs4/doc/#entities