getting rid of —
MRAB
python at mrabarnett.plus.com
Fri Jul 3 12:54:10 EDT 2009
Tep wrote:
> On 3 Jul., 16:58, "Mark Tolonen" <metolone+gm... at gmail.com> wrote:
>> "Tep" <petshm... at googlemail.com> wrote in message
>>
>> news:46d36544-1ea2-4391-8922-11b8127a2fef at o6g2000yqj.googlegroups.com...
>>
>>
>>
>>
>>
>>> On 3 Jul., 06:40, Simon Forman <sajmik... at gmail.com> wrote:
>>>> On Jul 2, 4:31 am, Tep <petshm... at googlemail.com> wrote:
>> [snip]
>>>>>>>> how can I replace '—' sign from string? Or do split at that
>>>>>>>> character?
>>>>>>>> Getting unicode error if I try to do it:
>>>>>>>> UnicodeDecodeError: 'ascii' codec can't decode byte 0x97 in
>>>>>>>> position
>>>>>>>> 1: ordinal not in range(128)
>>>>>>>> Thanks, Pet
>>>>>>>> script is # -*- coding: UTF-8 -*-
>> [snip]
>>>> I just tried a bit of your code above in my interpreter here and it
>>>> worked fine:
>>>> |>>> data = 'foo — bar'
>>>> |>>> data.split('—')
>>>> |['foo ', ' bar']
>>>> |>>> data = u'foo — bar'
>>> |>>> data.split(u'—')
>>>> |[u'foo ', u' bar']
>>>> Figure out the smallest piece of "html source code" that causes the
>>>> problem and include that with your next post.
>>> The problem was, I've converted "html source code" to unicode object
>>> and didn't encoded to utf-8 back, before using split...
>>> Thanks for help and sorry for not so smart question
>>> Pet
>> You'd still benefit from posting some code. You shouldn't be converting
>
> I've posted code below
>
>> back to utf-8 to do a split, you should be using a Unicode string with split
>> on the Unicode version of the "html source code". Also make sure your file
>> is actually saved in the encoding you declare. I print the encoding of your
>> symbol in two encodings to illustrate why I suspect this.
>
> File was indeed in windows-1252, I've changed this. For errors see
> below
>
>> Below, assume "data" is your "html source code" as a Unicode string:
>>
>> # -*- coding: UTF-8 -*-
>> data = u'foo — bar'
>> print repr(u'—'.encode('utf-8'))
>> print repr(u'—'.encode('windows-1252'))
>> print data.split(u'—')
>> print data.split('—')
>>
>> OUTPUT:
>>
>> '\xe2\x80\x94'
>> '\x97'
>> [u'foo ', u' bar']
>> Traceback (most recent call last):
>> File
>> "C:\dev\python\Lib\site-packages\pythonwin\pywin\framework\scriptutils.py",
>> line 427, in ImportFile
>> exec codeObj in __main__.__dict__
>> File "<auto import>", line 1, in <module>
>> File "x.py", line 6, in <module>
>> print data.split('—')
>> UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 0:
>> ordinal not in range(128)
>>
>> Note that using the Unicode string in split() works. Also note the decode
>> byte in the error message when using a non-Unicode string to split the
>> Unicode data. In your original error message the decode byte that caused an
>> error was 0x97, which is 'EM DASH' in Windows-1252 encoding. Make sure to
>> save your source code in the encoding you declare. If I save the above
>> script in windows-1252 encoding and change the coding line to windows-1252 I
>> get the same results, but the decode byte is 0x97.
>>
>> # coding: windows-1252
>> data = u'foo — bar'
>> print repr(u'—'.encode('utf-8'))
>> print repr(u'—'.encode('windows-1252'))
>> print data.split(u'—')
>> print data.split('—')
>>
>> '\xe2\x80\x94'
>> '\x97'
>> [u'foo ', u' bar']
>> Traceback (most recent call last):
>> File
>> "C:\dev\python\Lib\site-packages\pythonwin\pywin\framework\scriptutils.py",
>> line 427, in ImportFile
>> exec codeObj in __main__.__dict__
>> File "<auto import>", line 1, in <module>
>> File "x.py", line 6, in <module>
>> print data.split('ק)
>> UnicodeDecodeError: 'ascii' codec can't decode byte 0x97 in position 0:
>> ordinal not in range(128)
>>
>> -Mark
>
> #! /usr/bin/python
> # -*- coding: UTF-8 -*-
> import urllib2
> import re
> def getTitle(input):
> title = re.search('<title>(.*?)</title>', input)
The input is Unicode, so it's probably better for the regular expression
to also be Unicode:
title = re.search(u'<title>(.*?)</title>', input)
(In the current implementation it actually doesn't matter.)
> title = title.group(1)
> print "FULL TITLE", title.encode('UTF-8')
> parts = title.split(' — ')
The title is Unicode, so the string with which you're splitting should
also be Unicode:
parts = title.split(u' — ')
> return parts[0]
>
>
> def getWebPage(url):
> user_agent = 'Mozilla/4.0 (compatible; MSIE 5.5; Windows NT)'
> headers = { 'User-Agent' : user_agent }
> req = urllib2.Request(url, '', headers)
> response = urllib2.urlopen(req)
> the_page = unicode(response.read(), 'UTF-8')
> return the_page
>
>
> def main():
> url = "http://bg.wikipedia.org/wiki/
> %D0%91%D0%B0%D1%85%D1%80%D0%B5%D0%B9%D0%BD"
> title = getTitle(getWebPage(url))
> print title[0]
>
>
> if __name__ == "__main__":
> main()
>
>
> Traceback (most recent call last):
> File "C:\user\Projects\test\src\new_main.py", line 29, in <module>
> main()
> File "C:\user\Projects\test\src\new_main.py", line 24, in main
> title = getTitle(getWebPage(url))
> FULL TITLE Бахрейн — Уикипеди�
> File "C:\user\Projects\test\src\new_main.py", line 9, in getTitle
> parts = title.split(' — ')
> UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position
> 1: ordinal not in range(128)
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