def build_feed(instFeed, fromYear, toYear):
feed = yahoofeed.Feed()
for year in range(fromYear, toYear + 1):
for symbol in instFeed:
fileName = "%s-%d.csv" % (symbol, year)
if not os.path.exists(fileName):
print "Downloading %s %d" % (symbol, year)
csv = yahoofinance.get_daily_csv(symbol, year)
f = open(fileName, "w")
f.write(csv)
f.close()
feed.addBarsFromCSV(symbol, fileName)
return feed
def build_feed(instruments, fromYear, toYear):
feed = yahoofeed.Feed()
for year in range(fromYear, toYear+1):
for symbol in instruments:
fileName = "%s-%d-yahoofinance.csv" % (symbol, year)
if not os.path.exists(fileName):
print "Downloading %s %d" % (symbol, year)
csv = yahoofinance.get_daily_csv(symbol, year)
f = open(fileName, "w")
f.write(csv)
f.close()
feed.addBarsFromCSV(symbol, fileName)
return feed
def download_bars(db, symbol, year, timezone):
try:
# Download bars.
csvFile = tempfile.NamedTemporaryFile()
csvFile.write(yahoofinance.get_daily_csv(symbol, year))
csvFile.flush()
# Load them into a feed.
feed = yahoofeed.Feed()
feed.addBarsFromCSV(symbol, csvFile.name, timezone)
# Put them in the db.
db.addBarsFromFeed(feed)
except Exception, e:
logger.error("Error downloading %s bars for %s: %s" % (symbol, year, str(e)))