stock quotes

Frederic Rentsch anthra.norell at vtxmail.ch
Thu Sep 14 13:44:20 CEST 2006


Donlingerfelt wrote:
> I would like to download stock quotes from the web, store them, do
> calculations and sort the results.  However I am fairly new and don't have a
> clue how to parse the results of a web page download.   I can get to the
> site, but do not know how to request the certain data  need.  Does anyone
> know how to do this?  I would really appreciate it.  Thanks.
>
>
>   

Hi,

   Heres's example 8.4 from the SE manual:

----------------------------------------------------------------------------------------------------------------------------------

> >> def get_current_stock_quotes (symbols):

      import urllib

      url = 'http://finance.yahoo.com/q/cq?d=v1&s=' + '+'.join (symbols)

      htm_page = urllib.urlopen (url)

      import SE

      keep = '"~[A-Z]+ [JFMAJSOND].+?%~==(10)"  "~[A-Z]+ 
[0-9][0-2]?:[0-5][0-9][AP]M.+?%~==(10)"'          

      Data_Extractor = SE.SE ('<EAT> ' + keep)

      Tag_Stripper = SE.SE ('"~<(.|\n)*?>~= " se/htm2iso.se | "~\n[ 
\t\n]*~=(10)" "~ +~= "')

      data = Data_Extractor (Tag_Stripper (htm_page.read ()))

      htm_page.close ()

      return data

> >> print get_current_stock_quotes (('GE','IBM','AAPL', 'MSFT', 'AA', 
'MER'))

GE 3:17PM ET 33.15 0.30 0.90%

IBM 3:17PM ET 76.20 0.47 0.61%

AAPL 3:22PM ET 55.66 0.66 1.20%

MSFT 3:22PM ET 23.13 0.37 1.57%

AA 3:17PM ET 31.80 1.61 4.82%

MER 3:17PM ET 70.24 0.82 1.15%

-----------------------------------------------------------------------------------------------------------------------------

If this meets your requirements you'll find SE here: 
http://cheeseshop.python.org/pypi/SE/2.2%20beta

Regards

Frederic




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