How to remove all attributes from element

问题

How to remove all attributes of the specific elements througout the document. I'm trying something like this:

from bs4 import UnicodeDammit
from lxml import html

content = open("source.html").read()
document = UnicodeDammit(content, is_html=True)
parser = html.HTMLParser(encoding=document.original_encoding)
root = html.document_fromstring(content, parser=parser)

for attr in root.xpath('.//table/@*'):
    del attr.attrib

Here I'm trying to delete all attributes from all tables in the document using xpath, but it doesn't work.

回答1:

This is one possible way, assuming that you want to remove all attributes of certain element, say table :

for table in root.xpath('//table[@*]'):
    table.attrib.clear()

The code above loop through all table that contains any attribute, then call clear() method of the elemet's attrib property, since the property is simply a python dictionary.

来源：https://stackoverflow.com/questions/34285348/how-to-remove-all-attributes-from-element