python - 为什么 raw_input 失败了？

Question

我正在开发股票报价程序，该程序要求用户输入一个符号，但 raw_input 失败。我正在抓取雅虎财经。这是代码:非常感谢!!!

import urllib2
from bs4 import BeautifulSoup as bs4
symbol = raw_input("enter a stock")
def get_all_info():
  i = 0
  while i < len(list):
        url = urllib2.urlopen("https://in.finance.yahoo.com/q?s=" + symbol[i] + "&ql=0")
        soup = bs4(url,"html.parser")
        for price in soup.find(attrs={'id':"yfs_l84_" + symbol[i]}):               
        print "real time price: " + price
        i += 1
 print get_all_info()

这是错误:

  traceback (most recent call last):
  File "C:/Users/Raunaq/PycharmProjects/stock_market_work/ask.py", line 18, in      <module>
    print get_all_info()
  File "C:/Users/Raunaq/PycharmProjects/stock_market_work/ask.py", line 14, in get_all_info
    for price in soup.find(attrs={'id':"yfs_l84_" + name[i]}):
TypeError: 'NoneType' object is not iterable

Answer 1

据我发现，您需要输入股票名称列表并通过 BeautifulSoup 抓取雅虎财经打印出其成本，如果是这样，这里是完整的代码:

import urllib2
from bs4 import BeautifulSoup as bs4

def get_all_info():
    i = 0
    while i < len(list1):
        url = urllib2.urlopen("https://in.finance.yahoo.com/q?s=" + list1[i] + "&ql=0")
        soup = bs4(url,"html.parser")
        price = soup.find(attrs={'id':"yfs_l84_" + list1[i]})
        if price:     
            print ("real time price (for {0}): {1}".format(list1[i],price.contents[0]))
        i += 1


if __name__ == "__main__":
    stocks = raw_input("enter stocks names (space separated): ")
    list1 = stocks.split()
    get_all_info()

运行:

python script_name.py

enter stocks names (space separated): yhoo goog

real time price (for yhoo): 35.07

real time price (for goog): 728.11