def create_stock(quote, max_iterations, start, end, stocks, index):
'''
Create a stock from a quote
'''
if (quote['StockExchange'] == None):
return
success = False
for i in range(max_iterations):
if not success:
url = historical_url(quote['symbol'], start, end)
data = request_json(url)
if 'error' in data and i == (max_iterations-1):
raise Exception('Error in call to historical api',
data)
elif 'error' not in data:
success = True
quotes = data['query']['results']['quote']
close_prices = [float(q['Close']) for q in quotes]
stock = Stock(quote, close_prices)
stock.index = index
lock.acquire()
stocks.append(stock)
lock.release()
def test_yahoo_historical_url(self):
"""
Test to create url to get historical prices of a single stock
"""
yahoo_test_url = (
r"https://query.yahooapis.com/v1/public/yql?q=sele"
r"ct%20*%20from%20yahoo.finance.historicaldata%20w"
r"here%20symbol%20%3D%20%22YHOO%22%20and%20startDa"
r"te%20%3D%20%222009-09-11%22%20and%20endDate%20%3"
r"D%20%222010-03-07%22&format=json&diagnostics=tru"
r"e&env=store%3A%2F%2Fdatatables.org%2Falltableswi"
r"thkeys&callback="
)
produced = historical_url("YHOO", "2009-09-11", "2010-03-07")
self.assertEqual(yahoo_test_url, produced)