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Don't put html, head and body tags automatically, beautifulsoup

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青春惊慌失措
青春惊慌失措 2020-12-03 09:40

using beautifulsoup with html5lib, it puts the html, head and body tags automatically:

BeautifulSoup(\'
FOO
\', \'html5lib\') # => <
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  • 孤城傲影
    2020-12-03 10:13

    If you want it to look better, try this:

    BeautifulSoup([contents you want to analyze].prettify())

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  • 孤街浪徒
    2020-12-03 10:17

    Your only option is to not use html5lib to parse the data.

    That's a feature of the html5lib library, it fixes HTML that is lacking, such as adding back in missing required elements.

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  • 一个人的身影
    2020-12-03 10:17

    This aspect of BeautifulSoup has always annoyed the hell out of me.

    Here's how I deal with it:

    # Parse the initial html-formatted string
soup = BeautifulSoup(html, 'lxml')

# Do stuff here

# Extract a string repr of the parse html object, without the <html> or <body> tags
html = "".join([str(x) for x in soup.body.children])

    A quick breakdown:

    # Iterator object of all tags within the <body> tag (your html before parsing)
soup.body.children

# Turn each element into a string object, rather than a BS4.Tag object
# Note: inclusive of html tags
str(x)

# Get a List of all html nodes as string objects
[str(x) for x in soup.body.children]

# Join all the string objects together to recreate your original html
"".join()

    I still don't like this, but it gets the job done. I always run into this when I use BS4 to filter certain elements and/or attributes from HTML documents before doing something else with them where I need the entire object back as a string repr rather than a BS4 parsed object.

    Hopefully, the next time I Google this, I'll find my answer here.

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  • 广开言路
    2020-12-03 10:23

    Let's first create a soup sample:

    soup=BeautifulSoup("<head></head><body><p>content</p></body>")

    You could get html and body's child by specify soup.body.<tag>:

    # python3: get body's first child
print(next(soup.body.children))

# if first child's tag is rss
print(soup.body.rss)

    Also you could use unwrap() to remove body, head, and html

    soup.html.body.unwrap()
if soup.html.select('> head'):
    soup.html.head.unwrap()
soup.html.unwrap()

    If you load xml file, bs4.diagnose(data) will tell you to use lxml-xml, which will not wrap your soup with html+body

    >>> BS('<foo>xxx</foo>', 'lxml-xml')
<foo>xxx</foo>
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  • 名媛妹妹
    2020-12-03 10:28 
    In [35]: import bs4 as bs

In [36]: bs.BeautifulSoup('<h1>FOO</h1>', "html.parser")
Out[36]: <h1>FOO</h1>

    This parses the HTML with Python's builtin HTML parser. Quoting the docs:

    Unlike html5lib, this parser makes no attempt to create a well-formed HTML document by adding a <body> tag. Unlike lxml, it doesn’t even bother to add an <html> tag.

    Alternatively, you could use the html5lib parser and just select the element after <body>:

    In [61]: soup = bs.BeautifulSoup('<h1>FOO</h1>', 'html5lib')

In [62]: soup.body.next
Out[62]: <h1>FOO</h1>
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  • 臣服心动
    2020-12-03 10:31

    Here is how I do it

    a = BeautifulSoup()
a.append(a.new_tag('section'))
#this will give you <section></section>
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