在终端中运行时python println在哪里

Question

我在python中运行了这个api并且可以让它更新.csv文件但是当我只有它打印股票时我不知道它在哪里输出这些数据。这是我的代码：

import urllib
import os
import time

# loop that checks stock prices every 20 seconds and adds them to the file
while 1:
    # sometimes this program gives me socket errors so if it does skip this itteration of the loop
    try:
        stocks = urllib.urlopen('http://finance.yahoo.com/d/quotes.csv?s=JPM+C&f=snl1c6').read()
    except IOError:
        print ("error reading the socket")
        time.sleep(120) #if we don't sleep here loop constently retrys with no delay
        continue
    print stocks

Answer 1

有效。应该没有问题。

>>> stocks = urllib.urlopen('http://finance.yahoo.com/d/quotes.csv?s=JPM+C&f=snl1c6').read()
>>> print stocks
"JPM","JP Morgan Chase &",33.175,"+0.955"
"C","Citigroup, Inc. N",28.87,"+1.12"

为什么要在循环中执行此操作？如果成功，则立即进行另一次查询。

Answer 2

python yourprogram.py >> outfile

在您的评论中，您说您希望输出转到文件。这将不断附加到outfile

Answer 3

默认情况下，它会打印到sys.stdout。查看print的文档。