def getQuandlTickers(self, aQuandlUrls):
"""
get a unique set of tickers by adding everything in "aSet not in aTickers" to aTickers
link: http://stackoverflow.com/questions/7961363/python-removing-duplicates-in-lists
:param aQuandlUrls: Quandl URLs
:return: a list of unique tickers from the provided quandl urls
"""
aTickers = []
for strQuandl in aQuandlUrls:
aSet = Api.getQuandlTickers(strQuandl)
aTickers += list(set(aSet) - set(aTickers))
del aSet
return aTickers
def selectDailyData(self):
"""
Retrieve daily data for all our tickers
:return:
"""
TradingData.get(self.oDB, TradingData.S_DAILY_DATA, Api.getQuandlTickers(ApiParameters.QUANDL_SP500), '2015-11-20')
