Module YahooQuote

YahooQuote - a set of classes for fetching stock quotes from finance.yahoo.com

Created by David McNab ((david AT conscious DOT co DOT nz))

• http://www.cs.cornell.edu/barr/repository/pyq/index.html

But now, the back-end has been completely re-written.

This new version of YahooQuote stores its cache of retrieved histories in a fast MetaKit database file, ~/.yahooquote/stocks.db

>>> import YahooQuote

>>> market = YahooQuote.Market()

>>> redhat = market['rht']
>>> redhat
<Ticker:rht>

>>> redhat[20070601]
<Quote:rht/20070601:m=-0.31 o=24.88 c=24.57 l=24.40 h=25.25 a=24.57 v=8579200>

>>> redhat.now  # magic attribute via __getattr__
<Quote:rht/20071506:m=-0.22 o=23.50 c=23.28 l=23.22 h=23.75 a=23.28 v=1185200>

>>> ms = market['msft']
>>> ms
<Ticker:msft>  # note the 'dji/msft', meaning that MS is on DJI index

>>> ms[20070604:20070609]  # get range of dates as slice - Jun4 - Jun8
[<Quote:msft/20070604:m=+0.30 o=30.42 c=30.72 l=30.40 h=30.76 a=30.72 v=41434500>, 
<Quote:msft/20070605:m=-0.04 o=30.62 c=30.58 l=30.33 h=30.63 a=30.58 v=44265000>, 
<Quote:msft/20070606:m=-0.08 o=30.37 c=30.29 l=30.25 h=30.53 a=30.29 v=38217500>, 
<Quote:msft/20070607:m=-0.40 o=30.02 c=29.62 l=29.59 h=30.29 a=29.62 v=71971400>]

>>> lastThu = ms[20070614]  # fetch a single trading day

>>> lastThu
<Quote:msft/20070614:m=+0.17 o=30.35 c=30.52 l=30.30 h=30.71 a=30.52 v=59065700>

>>> lastThu.__dict__      # see what is in a Quote object
{'volume': 59065700, 'open': 30.350000000000001, 'high': 30.710000000000001,
 'adjclose': 30.52, 'low': 30.300000000000001, 'date': '20070614',
 'close': 30.52, 'ticker': <Ticker:dji/msft>}

>>> ms[20070603]  # sunday, markets closed, build dummy quote from Friday
<Quote:msft/20070603:m=0.00 o=30.59 c=30.59 l=30.59 h=30.59 a=30.59 v=0>