从HTML标记中删除某些属性 [英] remove certain attributes from HTML tags

问题描述

如何从HTML代码中删除某些属性，例如id，样式，类等?

How can I remove certain attributes such as id, style, class, etc. from HTML code?

我认为我可以使用 lxml.html.clean模块，但是事实证明，我只能使用Clean(style=True).clean_html(code)删除样式属性.我不希望在此任务中使用正则表达式(属性可能会发生变化).

I thought I could use the lxml.html.clean module, but as it turned out I can only remove style attributes with Clean(style=True).clean_html(code). I'd prefer not to use regular expressions for this task (attributes could change).

我想拥有的东西:

from lxml.html.clean import Cleaner

code = '<tr id="ctl00_Content_AdManagementPreview_DetailView_divNova" class="Extended" style="display: none;">'

cleaner = Cleaner(style=True, id=True, class=True)
cleaned = cleaner.clean_html(code)

print cleaned
'<tr>'

提前谢谢！

推荐答案

cleaner.Cleaner.__call__具有safe_attrs_only参数.设置为True时，仅保留clean.defs.safe_attrs中的属性.您可以通过更改clean.defs.safe_attrs删除任何或所有属性.只要确保完成后再将其更改即可.

cleaner.Cleaner.__call__ has a safe_attrs_only parameter. When set to True, only attributes in clean.defs.safe_attrs are preserved. You can remove any or all attributes by changing clean.defs.safe_attrs. Just be sure to change it back when you are done.

import lxml.html.clean as clean

code = '<tr id="ctl00_Content_AdManagementPreview_DetailView_divNova" class="Extended" style="display: none;">'

safe_attrs = clean.defs.safe_attrs
cleaner = clean.Cleaner(safe_attrs_only=True, safe_attrs=frozenset())
cleansed = cleaner.clean_html(code)

print(cleansed)

收益

<tr></tr>

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