我编写了下面的代码来检索S & P 500中的股票数据。代码有效,但由于urlopen请求的数量,它非常缓慢。我可以采用什么策略来加速这个过程?使用urllib.request获取股票数据
from urllib.request import urlopen
import csv
class StockQuote:
"""gets stock data from Yahoo Finance"""
def __init__(self, quote):
self.quote = quote
def lastPrice(self):
url = 'http://finance.yahoo.com/d/quotes.csv?s={ticker}&f=l1'.format(ticker=self.quote)
return bytes.decode((urlopen(url).read().strip()))
def volume(self):
url = 'http://finance.yahoo.com/d/quotes.csv?s={ticker}&f=v0'.format(ticker=self.quote)
return bytes.decode((urlopen(url).read().strip()))
def yearrange(self):
url = 'http://finance.yahoo.com/d/quotes.csv?s={ticker}&f=w0'.format(ticker=self.quote)
return bytes.decode((urlopen(url).read().strip()))
def PEratio(self):
url = 'http://finance.yahoo.com/d/quotes.csv?s={ticker}&f=r0'.format(ticker=self.quote)
return bytes.decode((urlopen(url).read().strip()))
def bookValue(self):
url = 'http://finance.yahoo.com/d/quotes.csv?s={ticker}&f=b4'.format(ticker=self.quote)
return bytes.decode((urlopen(url).read().strip()))
def EBITDA(self):
url = 'http://finance.yahoo.com/d/quotes.csv?s={ticker}&f=j4'.format(ticker=self.quote)
return bytes.decode((urlopen(url).read().strip()))
def PEGRatio(self):
url = 'http://finance.yahoo.com/d/quotes.csv?s={ticker}&f=r5'.format(ticker=self.quote)
return bytes.decode((urlopen(url).read().strip()))
def ticker(self):
url = 'http://finance.yahoo.com/d/quotes.csv?s={ticker}&f=s0'.format(ticker=self.quote)
return bytes.decode((urlopen(url).read().strip()))
def openSP500file():
SP500 = csv.reader(open(r'C:\Users\dev\Desktop\SP500.csv', 'r'), delimiter=',')
for x in SP500:
indStk = x[0]
printdata(indStk)
def printdata(stk):
stkObj = StockQuote(stk)
stkdata= {}
stkdata['Ticker'] = stkObj.ticker()
stkdata['Price'] = stkObj.lastPrice()
stkdata['PE Ratio'] = stkObj.PEratio()
stkdata['Volume'] = stkObj.volume()
stkdata['Year Range'] = stkObj.yearrange()
stkdata['Book Value per Share'] = stkObj.bookValue()
stkdata['EBITDA'] = stkObj.EBITDA()
stkdata['PEG Ratio'] = stkObj.PEGRatio()
print(stkdata)
def main():
openSP500file()
if __name__ == '__main__':
main()
谢谢!
谢谢!我从来没有使用过任何一个模块,但我会采取一些措施,看看我能否实现它。 – 2011-12-18 00:47:33