從列表中獲取庫存數據

Question

我目前正在開發一個非常基本的程序，以獲取庫存數據並將其復制到.csv文件中。 不知道我是否正確地使用for x in list ，因為我只復制了一只股票的數據，而不是列表中每只股票的單獨文件。

from datetime import date, timedelta
import urllib
import os

enddate = date.today()
startdate = enddate + timedelta(-30) # last 30 days
stocks = ["^RUT", "NFLX", "YHOO", "AAPL", "GOOG"]
for stock in stocks:
    print stock

STOCK_URL = 'http://ichart.finance.yahoo.com/table.csv'
PARAMS = {
    'a': startdate.month-1,
    'b': startdate.day,
    'c': startdate.year,
    'd': enddate.month-1,
    'e': enddate.day,
    'f': enddate.year,
    'g': 'd',
    'ignore': '.csv'
}

def pulldata(stock, filename):
    print "Retrieving latest data..."
    params = PARAMS.copy()
    params['s'] = stock
    url = "%s?%s" % (STOCK_URL, urllib.urlencode(params))
    return urllib.urlretrieve(url, filename)
try:
    folder = os.stat("My Stock Data/")
except:
    folder = os.mkdir("My Stock Data/")
filename, headers = pulldata(stock, "My Stock Data/" + stock + "-data.csv")
print "Done"

Answer 1

這就是您的代碼的樣子嗎？

如果是這樣，我希望看到打印出的股票名稱，然后是GOOG的數據，然后是“完成”。

嘗試抓住for循環，將其向下移動到調用pulldata之前，然后縮進該行，這樣看起來

try:
    folder = os.stat("My Stock Data/")
except:
    folder = os.mkdir("My Stock Data/")

for stock in stocks:
    print(stock)
    filename, headers = pulldata(stock, "My Stock Data/" + stock + "-data.csv")

print("Done")