Python - BeautifulSoup error while scraping - python

UPDATE: Using lxml instead of html.parser helped solve the problem, as Freddier suggested in the answer below!
I am trying to webscrape some information off of this website: https://www.ticketmonster.co.kr/deal/952393926.
I get an error when I run soup(thispage, 'html.parser) but this error only happens for this specific page. Does anyone know why this is happening?
The code I have so far is very simple:
from bs4 import BeautifulSoup as soup
openU = urlopen(url)
thispage = openU.read()
open.close()
pageS = soup(thispage, 'html.parser')
The error I get is:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Users\Kathy\AppData\Local\Programs\Python\Python36\lib\site-packages\bs4\__init__.py", line 228, in __init__
self._feed()
File "C:\Users\Kathy\AppData\Local\Programs\Python\Python36\lib\site- packages\bs4\__init__.py", line 289, in _feed
self.builder.feed(self.markup)
File "C:\Users\Kathy\AppData\Local\Programs\Python\Python36\lib\site-packages\bs4\builder\_htmlparser.py", line 215, in feed
parser.feed(markup)
File "C:\Users\Kathy\AppData\Local\Programs\Python\Python36\lib\html\parser.py", line 111, in feed
self.goahead(0)
File "C:\Users\Kathy\AppData\Local\Programs\Python\Python36\lib\html\parser.py", line 179, in goahead
k = self.parse_html_declaration(i)
File "C:\Users\Kathy\AppData\Local\Programs\Python\Python36\lib\html\parser.py", line 264, in parse_html_declaration
return self.parse_marked_section(i)
File "C:\Users\Kathy\AppData\Local\Programs\Python\Python36\lib\_markupbase.py", line 149, in parse_marked_section
sectName, j = self._scan_name( i+3, i )
File "C:\Users\Kathy\AppData\Local\Programs\Python\Python36\lib\_markupbase.py", line 391, in _scan_name
% rawdata[declstartpos:declstartpos+20])
File "C:\Users\Kathy\AppData\Local\Programs\Python\Python36\lib\_markupbase.py", line 34, in error
"subclasses of ParserBase must override error()")
NotImplementedError: subclasses of ParserBase must override error()
Please help!

Try using
pageS = soup(thispage, 'lxml')
insted of
pageS = soup(thispage, 'html.parser')
It looks may be a problem with characters encoding using "html.parser"

Related

MemoryError when parsing XML file

I am trying to find the specific tag in an XML file and I used BeautifulSoup to read the XML file. It produces the following error:
soup = BeautifulSoup(XML, 'xml')
Traceback (most recent call last):
File "<ipython-input-5-f431fabb5903>", line 1, in <module>
soup = BeautifulSoup(XML, 'xml')
File "D:\software\Anaconda3\envs\py37\lib\site-packages\bs4\__init__.py", line 362, in __init__
self._feed()
File "D:\software\Anaconda3\envs\py37\lib\site-packages\bs4\__init__.py", line 448, in _feed
self.builder.feed(self.markup)
File "D:\software\Anaconda3\envs\py37\lib\site-packages\bs4\builder\_lxml.py", line 203, in feed
markup = StringIO(markup)
MemoryError
The size of the file is 353 MB but it has also parsed a larger file and did not produce this error. Do you know what the problem is?

urllib is mangling my urls

I'm writing a little scraper. Here's the code so far.
from urllib import urlopen
from BeautifulSoup import BeautifulSoup
import re
soup = BeautifulSoup(
urlopen('http://www.high-rely.com/HR3/includes/ProductFamily.php').read()
)
links = soup.findAll('a', 'visible_link')
hrefs = ['www.high-rely.com' + relative for relative in [x['href'] for x in links]]
subpages = map(BeautifulSoup, [urlopen(x).read() for x in hrefs])
When I run it though, I get the following error.
Traceback (most recent call last):
File "C:/Users/josh.SCL/Desktop/Scraper.py", line 13, in <module>
subpages = map(BeautifulSoup, [urlopen(x).read() for x in hrefs])
File "C:\Python27\lib\urllib.py", line 84, in urlopen
return opener.open(url)
File "C:\Python27\lib\urllib.py", line 205, in open
return getattr(self, name)(url)
File "C:\Python27\lib\urllib.py", line 461, in open_file
return self.open_local_file(url)
File "C:\Python27\lib\urllib.py", line 475, in open_local_file
raise IOError(e.errno, e.strerror, e.filename)
IOError: [Errno 2] The system cannot find the path specified: 'www.high-rely.com\\HR3\\includes\\products\\5MinOverview.php'
If I loop through hrefs, I get this.
www.high-rely.com/HR3/includes/products/5MinOverview.php
www.high-rely.com/HR3/includes/products/10MinOverview.php
www.high-rely.com/HR3/includes/products/30MinOverview.php
www.high-rely.com/HR3/includes/HighRely/HighRely.php
www.high-rely.com/HR3/includes/HighRely/HighRely.php
www.high-rely.com/HR3/includes/RAIDFrame/RAIDFrame.php
www.high-rely.com/HR3/includes/RAIDFrame/RAIDFrame.php
www.high-rely.com/HR3/includes/MPac/MPac.php
www.high-rely.com/HR3/includes/MPac/MPac.php
www.high-rely.com/HR3/includes/BNAS/BNAS-HRS201.php
www.high-rely.com/HR3/includes/announcements.php
Which is correct. What's going on here?
You forgot to write http://:
hrefs = ['http://www.high-rely.com' + relative for relative in [x['href'] for x in links]]

BeautifulSoup not working

i am trying to import the content of my blog using BeautifulSoup,using the the syntax as given below
import urllib2
from BeautifulSoup import BeautifulSoup
response=urllib2.urlopen('http://www.bugsandbrains.blogspot.com')
html=response.read()
soup=BeautifulSoup(html)
Every thing worked fine two or three time after that it started throwing HtmlParseError
i see it highly unlikely that the structure of the page might have changed within a few minutes what else can might be causing this problem ?
i am enclosing the trace as well.
Traceback (most recent call last):
File "<console>", line 1, in <module>
File "/usr/lib/pymodules/python2.6/BeautifulSoup.py", line 1499, in __init__
BeautifulStoneSoup.__init__(self, *args, **kwargs)
File "/usr/lib/pymodules/python2.6/BeautifulSoup.py", line 1230, in __init__
self._feed(isHTML=isHTML)
File "/usr/lib/pymodules/python2.6/BeautifulSoup.py", line 1263, in _feed
self.builder.feed(markup)
File "/usr/lib/python2.6/HTMLParser.py", line 108, in feed
self.goahead(0)
File "/usr/lib/python2.6/HTMLParser.py", line 150, in goahead
k = self.parse_endtag(i)
File "/usr/lib/python2.6/HTMLParser.py", line 317, in parse_endtag
self.error("bad end tag: %r" % (rawdata[i:j],))
File "/usr/lib/python2.6/HTMLParser.py", line 115, in error
raise HTMLParseError(message, self.getpos())
HTMLParseError: bad end tag: u"</scr' + 'ipt>", at line 1152, column 16
I just tried your code on Windows with:
Python: 2.6 (same as yours)
BeautiSoup: 3.0.8.1 (latest)
I can't reproduce this. Are you using the latest code 3.0 series which is meant for Python 2.6, not 3.1 series which is for Python 3 [0]. Sorry, but can't think of any other clues right now.
[0] http://www.crummy.com/software/BeautifulSoup/#Download
I have tried your code, and it works. My env: ActivePython 2.6.6.15, BeautifulSoup 3.0.8.1. I printed out soup variable and it contains content of "Boredom Induced Post". When I tested http://www.bugsandbrains.blogspot.com with browsers they shows Wave Sandbox login page. No clue about what is wrong :(

how to fix or make an exception for this error

I'm creating a code that gets image's urls from any web pages, the code are in python and use BeutifulSoup and httplib2.
When I run the code, I get the next error:
Look me http://movies.nytimes.com (this line is printed by the code)
Traceback (most recent call last):
File "main.py", line 103, in <module>
visit(initialList,profundidad)
File "main.py", line 98, in visit
visit(dodo[indice], bottom -1)
File "main.py", line 94, in visit
getImages(w)
File "main.py", line 34, in getImages
iSoupList = BeautifulSoup(response, parseOnlyThese=SoupStrainer('img'))
File "/usr/local/lib/python2.6/dist-packages/BeautifulSoup.py", line 1499, in __init__
BeautifulStoneSoup.__init__(self, *args, **kwargs)
File "/usr/local/lib/python2.6/dist-packages/BeautifulSoup.py", line 1230, in __init__
self._feed(isHTML=isHTML)
File "/usr/local/lib/python2.6/dist-packages/BeautifulSoup.py", line 1263, in _feed
self.builder.feed(markup)
File "/usr/lib/python2.6/HTMLParser.py", line 108, in feed
self.goahead(0)
File "/usr/lib/python2.6/HTMLParser.py", line 148, in goahead
k = self.parse_starttag(i)
File "/usr/lib/python2.6/HTMLParser.py", line 226, in parse_starttag
endpos = self.check_for_whole_start_tag(i)
File "/usr/lib/python2.6/HTMLParser.py", line 301, in check_for_whole_start_tag
self.error("malformed start tag")
File "/usr/lib/python2.6/HTMLParser.py", line 115, in error
raise HTMLParseError(message, self.getpos())
HTMLParser.HTMLParseError: malformed start tag, at line 942, column 118
Someone can explain me how to fix or make an exeption for the error
Are you using latest version of BeautifulSoup?
This seems a known issue of version 3.1.x, because it started using a new parser (HTMLParser, instead of SGMLParser) that is much worse at processing malformed HTML. You can find more information about this on BeautifulSoup website.
As a quick solution, you can simply use an older version (3.0.7a).
To catch that error specifically, change your code to look like this:
try:
iSoupList = BeautifulSoup(response, parseOnlyThese=SoupStrainer('img'))
except HTMLParseError:
#Do something intelligent here
Here's some more reading on Python's try except blocks:
http://docs.python.org/tutorial/errors.html
I got that error when I had the string =& in my HTML document. When I replaced that string (in my case with =and) then I no longer received that parsing error.

Beautiful Soup and uTidy

I want to pass the results of utidy to Beautiful Soup, ala:
page = urllib2.urlopen(url)
options = dict(output_xhtml=1,add_xml_decl=0,indent=1,tidy_mark=0)
cleaned_html = tidy.parseString(page.read(), **options)
soup = BeautifulSoup(cleaned_html)
When run, the following error results:
Traceback (most recent call last):
File "soup.py", line 34, in <module>
soup = BeautifulSoup(cleaned_html)
File "/var/lib/python-support/python2.6/BeautifulSoup.py", line 1499, in __init__
BeautifulStoneSoup.__init__(self, *args, **kwargs)
File "/var/lib/python-support/python2.6/BeautifulSoup.py", line 1230, in __init__
self._feed(isHTML=isHTML)
File "/var/lib/python-support/python2.6/BeautifulSoup.py", line 1245, in _feed
smartQuotesTo=self.smartQuotesTo, isHTML=isHTML)
File "/var/lib/python-support/python2.6/BeautifulSoup.py", line 1751, in __init__
self._detectEncoding(markup, isHTML)
File "/var/lib/python-support/python2.6/BeautifulSoup.py", line 1899, in _detectEncoding
xml_encoding_match = re.compile(xml_encoding_re).match(xml_data)
TypeError: expected string or buffer
I gather utidy returns an XML document while BeautifulSoup wants a string. Is there a way to cast cleaned_html? Or am I doing it wrong and should take a different approach?
Just wrap str() around cleaned_html
when passing it to BeautifulSoup.
Convert the value passed to BeautifulSoup into a string.
In your case, do the following edit to the last line:
soup = BeautifulSoup(str(cleaned_html))

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