《集体智慧编程》(Programming Collective Intelligence)源代码
##fix bugs ###修复原书过期API 1.将原书第9章：SVN Yahoo API替换方法为bingMaps API:http://dev.virtualearth.net/
def getlocation(address):
if address in loc_cache: return loc_cache[address]
url = 'http://dev.virtualearth.net/REST/v1/Locations?CountryRegion=US&addressLine=%s&maxResults=1&key=%s' % (
quote_plus(address), bingkey)
print url
while True:
data = urlopen(url).read()
data_string = json.loads(data)
print data_string['statusCode']
if (data_string['statusCode'] == 200 and data_string['resourceSets'][0]['estimatedTotal'] == 1): break
lat = data_string['resourceSets'][0]['resources'][0]['geocodePoints'][0]['coordinates'][0]
long = data_string['resourceSets'][0]['resources'][0]['geocodePoints'][0]['coordinates'][1]
loc_cache[address] = (float(lat), float(long))
return loc_cache[address]
1.将原书第10章：knm Yahoo API替换方法为Yahoo API:http://query.yahooapis.com/v1/public/yql
while True:
rows = urlopen(
"http://query.yahooapis.com/v1/public/yql?q= select * from yahoo.finance.historicaldata where symbol= \"%s\" and startDate = \"2012-09-11\" and endDate = \"2014-02-11\" &format=json &diagnostics=true &env=store://datatables.org/alltableswithkeys &callback=" % t).read()
try:
row_string = json.loads(rows)
except:
continue
if (len(row_string["query"]["results"]["quote"]) > 0): break
# print row_string["query"]["results"]["quote"]
row_prices = []
for quote in row_string["query"]["results"]["quote"]:
row_prices.append(float(quote["Volume"]))
if len(dates) < len(row_string["query"]["results"]["quote"]):
dates.append(quote["Date"])
prices[t] = row_prices
if len(prices[t]) < shortest: shortest = len(prices[t])
l1 = [[prices[tickers[i]][j] for i in range(len(tickers))] for j in range(shortest)]
w, h = nmf.factorize(matrix(l1), pc=5)
###增强代码健壮性
while True:
rows = urlopen(
"http://query.yahooapis.com/v1/public/yql?q= select * from yahoo.finance.historicaldata where symbol= \"%s\" and startDate = \"2012-09-11\" and endDate = \"2014-02-11\" &format=json &diagnostics=true &env=store://datatables.org/alltableswithkeys &callback=" % t).read()
try:
row_string = json.loads(rows)
except:
continue
if (len(row_string["query"]["results"]["quote"]) > 0): break