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why <br> is not regarded as <br /> in some cases
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polyrabbit  
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 More options Oct 26 2012, 2:21 pm
From: polyrabbit <mcx_...@foxmail.com>
Date: Fri, 26 Oct 2012 11:21:47 -0700 (PDT)
Local: Fri, Oct 26 2012 2:21 pm
Subject: why <br> is not regarded as <br /> in some cases
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First off, I do have searched a lot on BeautifulSoup and br, but found
nothing related to my problem, so I come to you for help.

In some mal-formatted HTML, <br /> is always written as <br>, which
leads BeautifulSoup to regard it as half of the <br></br> tag, for example:

> print BeautifulSoup('<br>word')

the output is <br>word</br>

But when written along <br> is regarded as a self-close tag:

> print BeautifulSoup('<br>')

yields  <br/>

Why is it resolved in two different ways, and how can I make bs to always
regard <br> as <br/>?
Thank you all in advance..


 
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dgspot...@gmail.com  
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 More options Feb 11, 12:35 pm
From: dgspot...@gmail.com
Date: Mon, 11 Feb 2013 09:35:06 -0800 (PST)
Local: Mon, Feb 11 2013 12:35 pm
Subject: Re: why <br> is not regarded as <br /> in some cases
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BeautifulSoup 3 gets this right, BeautifulSoup 4 gets it wrong (<br> is a
void element that should never have any content).

My question is: "Is BeautifulSoup 4 fundamentally broken in this regard, or
is there some option I'm missing that gets it to treat unterminated <br>tags the same way as BeautifulSoup 3 did?" (I would like to use
BeautifulSoup 4, but it's currently making my life difficult in a way that
BeautifulSoup 3 doesn't.)

Here's an example: given two soups (soup3, soup4) constructed from the same
HTML using BeautifulSoup 3 and BeautifulSoup 4, respectively, notice the
"nested" contents of snippet4 as compared to the "flat" contents of snippet3
:

>>> snippet3 = soup3.find(text=re.compile('^Date')).parent.parent
>>> snippet4 = soup4.find(text=re.compile('^Date')).parent.parent
>>> snippet3

<p>
<strong>Date &amp; Time: </strong>02/02/2013 1:02pm<br />
<strong>Invoice Number: </strong><br />
<strong>Auth #: </strong><br />
<strong>Customer Name: </strong>Cards</p>

>>> snippet4

<p>
<strong>Date &amp; Time: </strong>02/02/2013 1:02pm<br>
<strong>Invoice Number: </strong><br>
<strong>Auth #: </strong><br>
<strong>Customer Name: </strong>Cards</br></br></br></p>

>>> snippet3.contents

[u'\n', <strong>Date &amp; Time: </strong>, u'02/02/2013 1:02pm', <br />,
u'\n', <strong>Invoice Number: </strong>, <br />, u'\n', <strong>Auth #:
</strong>, <br />, u'\n', <strong>Customer Name: </strong>, u'Cards']

>>> snippet4.contents

[u'\n', <strong>Date &amp; Time: </strong>, u'02/02/2013 1:02pm', <br>
<strong>Invoice Number: </strong><br>
<strong>Auth #: </strong><br>
<strong>Customer Name: </strong>Cards</br></br></br>]

>>> snippet4.contents[3].contents

[u'\n', <strong>Invoice Number: </strong>, <br>
<strong>Auth #: </strong><br>
<strong>Customer Name: </strong>Cards</br></br>]

 
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Aaron DeVore  
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 More options Feb 11, 11:05 pm
From: Aaron DeVore <aaron.dev...@gmail.com>
Date: Mon, 11 Feb 2013 20:05:01 -0800
Local: Mon, Feb 11 2013 11:05 pm
Subject: Re: why <br> is not regarded as <br /> in some cases
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> BeautifulSoup 3 gets this right, BeautifulSoup 4 gets it wrong (<br> is a

void element that should never have any content).

BeautifulSoup 4 with the default parser gets it wrong. BS4 with the
lxml.html backend works as expected. The lxml backend will automatically be
used if lxml is available.

-Aaron DeVore


 
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