how to detect the character encoding in a web page ?
Carlos Nepomuceno
carlosnepomuceno at outlook.com
Sun Jun 9 17:35:55 EDT 2013
Try this:
### get_charset.py ###
import re
import urllib2
def get_charset(url):
resp = urllib2.urlopen(url)
#retrieve charset from header
headers = ''.join(resp.headers.headers)
charset_from_header_list = re.findall('charset=(.*)', headers)
charset_from_header = charset_from_header_list[-1] if charset_from_header_list else ''
#retrieve charset from html
html = resp.read()
charset_from_html_list = re.findall('Content-Type.*charset=["\']?(.*)["\']', html)
charset_from_html = charset_from_html_list[-1] if charset_from_html_list else ''
return charset_from_html if charset_from_html else charset_from_header
> Date: Sun, 9 Jun 2013 04:47:02 -0700
> Subject: Re: how to detect the character encoding in a web page ?
> From: redstone-cold at 163.com
> To: python-list at python.org
>
> 在 2012年12月24日星期一UTC+8上午8时34分47秒,iMath写道:
> > how to detect the character encoding in a web page ?
> >
> > such as this page
> >
> >
> >
> > http://python.org/
>
> Finally ,I found by using PyQt’s QtextStream , QTextCodec and chardet ,we can get a web page code more securely
> even for this bad page
> http://www.qnwz.cn/html/yinlegushihui/magazine/2013/0524/425731.html
>
> this script
> http://www.flvxz.com/getFlv.php?url=aHR0cDojI3d3dy41Ni5jb20vdTk1L3ZfT1RFM05UYzBNakEuaHRtbA==
>
> and this page without chardet in its source code
> http://msdn.microsoft.com/en-us/library/bb802962(v=office.12).aspx
>
>
> from PyQt4.QtCore import *
> from PyQt4.QtGui import *
> from PyQt4.QtNetwork import *
> import sys
> import chardet
>
> def slotSourceDownloaded(reply):
> redirctLocation=reply.header(QNetworkRequest.LocationHeader)
> redirctLocationUrl=reply.url() if not redirctLocation else redirctLocation
> #print(redirctLocationUrl,reply.header(QNetworkRequest.ContentTypeHeader))
>
> if (reply.error()!= QNetworkReply.NoError):
> print('11111111', reply.errorString())
> return
>
> pageCode=reply.readAll()
> charCodecInfo=chardet.detect(pageCode.data())
>
> textStream=QTextStream(pageCode)
> codec=QTextCodec.codecForHtml(pageCode,QTextCodec.codecForName(charCodecInfo['encoding'] ))
> textStream.setCodec(codec)
> content=textStream.readAll()
> print(content)
>
> if content=='':
> print('---------', 'cannot find any resource !')
> return
>
> reply.deleteLater()
> qApp.quit()
>
>
> if __name__ == '__main__':
> app =QCoreApplication(sys.argv)
> manager=QNetworkAccessManager ()
> url =input('input url :')
> request=QNetworkRequest (QUrl.fromEncoded(QUrl.fromUserInput(url).toEncoded()))
> request.setRawHeader("User-Agent" ,'Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.57 Safari/537.17 SE 2.X MetaSr 1.0')
> manager.get(request)
> manager.finished.connect(slotSourceDownloaded)
> sys.exit(app.exec_())
> --
> http://mail.python.org/mailman/listinfo/python-list
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