example of providers/yahoo

yahoo.py

#!/usr/bin/env python
#coding=utf-8
import datetime
import os
import sys

from tornado.curl_httpclient import CurlAsyncHTTPClient as AsyncHTTPClient
from tornado import ioloop

ROOT_PATH = os.path.join(os.path.realpath(os.path.dirname(__file__)), '..')
sys.path[0:0] = [ROOT_PATH]

from datafeed.exchange import *
from datafeed.providers.yahoo import *

def main():
    f = YahooDayFetcher()
    s1 = YahooSecurity(SZ(), '000001')
    s2 = YahooSecurity(SZ(), '000725')

    def call_back(security, body):
        iters = YahooDay.parse(security, body)
        for ohlc in iters:
            print ohlc.open

    start_date = datetime.datetime.strptime('2011-01-03', '%Y-%m-%d').date()
    end_date = datetime.datetime.strptime('2011-02-10', '%Y-%m-%d').date()
    
    print dir(f)
    f.fetch(s1,callback=call_back,start_date=start_date,end_date=end_date)

if __name__ == '__main__':
    main()