pyq pyq
Python Yahoo Quote fetching utility.
by Rimon Barr
Description:
pyq is a fast, efficient, command-line utility for downloading quotes from Yahoo.

Syntax:

  pyQ v#.##, by Rimon Barr:
  Python Yahoo Quote fetching utility

  Usage: pyQ [-i] [start_date [end_date]] ticker [ticker...]
        rimdu -h | -v

    -h, -?, --help      display this help information
    -v, --version       display version
    -i, --stdin         tickers fed on stdin, one per line

    date formats are yyyymmdd
    if enddate is omitted, it is assume to be the same as startdate
    if startdate is omitted, we use *current* stock tables
      and otherwise, use historical stock tables.
      (current stock tables will give previous close price before
       market closing time.)
    tickers are exactly what you would type at finance.yahoo.com
    output format is "ticker, date (yyyymmdd), open, high, low, close, volume"

  Send comments, suggestions and bug reports to <barr-AT-cs.cornell.edu>.
The stock data is output in the format: 
  ticker, date (yyyymmdd), open, high, low, close, volume
 Sample output:
For example, typing in the following command: 
  pyq 20010401 20010407 ibm t
 retrieves the data for IBM and AT&T for the first week in April 2001: 
  ibm,20010406,97.6322,99.6247,96.0382,97.5824,13424200
  ibm,20010405,95.4404,99.6247,95.1715,97.8414,12506100
  ibm,20010404,90.1105,93.697,89.712,91.6547,13515600
  ibm,20010403,94.245,94.2948,89.7618,90.0508,13330000
  ibm,20010402,97.0843,97.7318,93.2288,94.3047,8787000
  t,20010406,15.6928,15.7002,15.1323,15.3191,8679900
  t,20010405,15.3565,16.0664,14.9455,16.0664,10263900
  t,20010404,14.9754,15.3266,14.9455,14.9679,10020400
  t,20010403,15.3938,15.5059,14.8334,14.9754,15605300
  t,20010402,15.9169,16.4326,15.5134,15.7525,13925000
 The following command takes ticker symbols from a file, and output today's values. 
  pyq -i < tickers
Giving a similar kind of output: 
  ibm,20020110,123.75,124.00,121.76,124.49,2964400
  t,20020110,18.70,18.87,18.52,18.70,2349400
  f,20020110,15.85,15.90,15.10,16.31,5089300
  x,20020110,18.31,18.38,18.01,18.19,100300
 Note, that if the market close data is unavailable, the previous close price is listed. In general, the following two commands do not necessarily agree, even if yymmdd is today. 
  pyq yymmdd ibm
  pyq ibm
 The first command uses Yahoo historical data tables, while the second one uses Yahoo current stock quotes. When downloading many stock tickers the second method is much faster as stock requests can be aggregated. However, if you want to be sure that you have market close conditions, use the first version.

License:
This software is distributed under the terms of the GNU General Public License.

Download:
The script merely requires python to run. Enjoy.
15/03/07 - pyq v0.7
06/02/07 - pyq v0.6
27/01/05 - pyq v0.5
29/09/04 - pyq v0.4
31/10/02 - pyq v0.3
14/10/02 - pyq v0.02
10/01/02 - pyq v0.01