On Tue, 12 Aug 2014 13:00:30 -0700 (PDT)
Simon Evans <musicalhack...@yahoo.co.uk> wrote:
> Dear Programmers,
> I have been looking at the You tube 'Web Scraping Tutorials' of Chris Reeves.
> I have tried a few of his python programs in the Python27 command prompt, but
> altered them from accessing data using links say from the Dow Jones index, to
> accessing the details I would be interested in accessing from the 'Racing
> Post' on a daily basis. Anyhow, the code it returns is not in the example I
> am going to give, is not the information I am seeking, instead of returning
> the given odds on a horse, it only returns a [], which isn't much use.
> I would be glad if you could tell me where I am going wrong.
> Yours faithfully
> Simon Evans.
> --------------------------------------------------------------------------------
> >>>import urllib
> >>>import re
> >>>htmlfile = urllib.urlopen("http://www.racingpost.com/horses2/cards/card.sd?
>
> race_id=600048r_date=2014-05-08#raceTabs=sc_")
> htmltext = htmlfile.read()
> regex = '<strong>1<a href="http://www.racingpost.com/horses/horse_home.sd?
>
> horse_id=758752"onclick="scorecards.send("horse_name":):return
> Html.popup(this,
>
> {width:695,height:800})"title="Full details about this HORSE">Lively
>
> Baron</a>9/4F</strong><br/>'
> >>>pattern = re.compile(regex)
> >>>odds=re.findall(pattern,htmltext)
> >>>print odds
> []
> >>>
> --------------------------------------------------------------------------------
> >>>import urllib
> >>>import re
> >>>htmlfile = urllib.urlopen("http://www.racingpost.com/horses2/cards/card.sd?
>
> >>>race_id=600048r_date=2014-05-08#raceTabs=sc_")
> >>>htmltext = htmlfile.read()
> >>>regex = '<a></a>'
> >>>pattern = re.compile(regex)
> >>>odds=re.findall(pattern,htmltext)
> >>>print odds
> []
> >>>
> -------------------------------------------------------------------------------
If you want web scraping, you want to use
http://www.crummy.com/software/BeautifulSoup/ . End of story.
--
Rob Gaddi, Highland Technology -- www.highlandtechnology.com
Email address domain is currently out of order. See above to fix.
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