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Decode HTML entities in Python string?

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名媛妹妹
名媛妹妹 2020-11-21 06:18

I\'m parsing some HTML with Beautiful Soup 3, but it contains HTML entities which Beautiful Soup 3 doesn\'t automatically decode for me:

>>> from Be
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  • 栀梦
    2020-11-21 06:40

    Beautiful Soup handles entity conversion. In Beautiful Soup 3, you'll need to specify the convertEntities argument to the BeautifulSoup constructor (see the 'Entity Conversion' section of the archived docs). In Beautiful Soup 4, entities get decoded automatically.

    Beautiful Soup 3

    >>> from BeautifulSoup import BeautifulSoup
>>> BeautifulSoup("<p>&pound;682m</p>", 
...               convertEntities=BeautifulSoup.HTML_ENTITIES)
<p>£682m</p>

    Beautiful Soup 4

    >>> from bs4 import BeautifulSoup
>>> BeautifulSoup("<p>&pound;682m</p>")
<html><body><p>£682m</p></body></html>
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  • 被撕碎了的回忆
    2020-11-21 06:40

    You can use replace_entities from w3lib.html library

    In [202]: from w3lib.html import replace_entities

In [203]: replace_entities("&pound;682m")
Out[203]: u'\xa3682m'

In [204]: print replace_entities("&pound;682m")
£682m
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  • 春和景丽
    2020-11-21 06:44

    Python 3.4+

    Use html.unescape():

    import html
print(html.unescape('&pound;682m'))

    FYI html.parser.HTMLParser.unescape is deprecated, and was supposed to be removed in 3.5, although it was left in by mistake. It will be removed from the language soon.

    Python 2.6-3.3

    You can use HTMLParser.unescape() from the standard library:

    • For Python 2.6-2.7 it's in HTMLParser
    • For Python 3 it's in html.parser
    >>> try:
...     # Python 2.6-2.7 
...     from HTMLParser import HTMLParser
... except ImportError:
...     # Python 3
...     from html.parser import HTMLParser
... 
>>> h = HTMLParser()
>>> print(h.unescape('&pound;682m'))
£682m

    You can also use the six compatibility library to simplify the import:

    >>> from six.moves.html_parser import HTMLParser
>>> h = HTMLParser()
>>> print(h.unescape('&pound;682m'))
£682m
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  • 梦毁少年i
    2020-11-21 06:52

    Beautiful Soup 4 allows you to set a formatter to your output

    If you pass in formatter=None, Beautiful Soup will not modify strings at all on output. This is the fastest option, but it may lead to Beautiful Soup generating invalid HTML/XML, as in these examples:

    print(soup.prettify(formatter=None))
# <html>
#  <body>
#   <p>
#    Il a dit <<Sacré bleu!>>
#   </p>
#  </body>
# </html>

link_soup = BeautifulSoup('<a href="http://example.com/?foo=val1&bar=val2">A link</a>')
print(link_soup.a.encode(formatter=None))
# <a href="http://example.com/?foo=val1&bar=val2">A link</a>
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  • 离开以前
    2020-11-21 06:53

    I had a similar encoding issue. I used the normalize() method. I was getting a Unicode error using the pandas .to_html() method when exporting my data frame to an .html file in another directory. I ended up doing this and it worked...

        import unicodedata

    The dataframe object can be whatever you like, let's call it table...

        table = pd.DataFrame(data,columns=['Name','Team','OVR / POT'])
    table.index+= 1

    encode table data so that we can export it to out .html file in templates folder(this can be whatever location you wish :))

         #this is where the magic happens
     html_data=unicodedata.normalize('NFKD',table.to_html()).encode('ascii','ignore')

    export normalized string to html file

        file = open("templates/home.html","w") 

    file.write(html_data) 

    file.close()

    Reference: unicodedata documentation

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  • 既然无缘
    2020-11-21 06:56

    This probably isnt relevant here. But to eliminate these html entites from an entire document, you can do something like this: (Assume document = page and please forgive the sloppy code, but if you have ideas as to how to make it better, Im all ears - Im new to this).

    import re
import HTMLParser

regexp = "&.+?;" 
list_of_html = re.findall(regexp, page) #finds all html entites in page
for e in list_of_html:
    h = HTMLParser.HTMLParser()
    unescaped = h.unescape(e) #finds the unescaped value of the html entity
    page = page.replace(e, unescaped) #replaces html entity with unescaped value
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