stocks_stocks打印机标有

import urllib  
 
link="http://finance.yahoo.com/q/cp?s=^STI"
 
html=urllib.urlopen(link).read()
 
from sgmllib import SGMLParser
import time
class URLLister(SGMLParser):
    urls = []
    cou=0
    is_td=""
    def start_td(self, attrs):
		href = [v for k, v in attrs if k=='class']
		if 'yfnc_tabledata1' in href:
			self.is_td=1
			self.cou+=1
    def end_td(self):
		self.is_td=""
    def handle_data(self,text):
		if self.is_td:
			self.urls.append(text)
 
 
while True:
	print 'Symbol	','Name    ','LastTrade    ','Change    ','Volume    '
	lister=URLLister()
	lister.feed(html)
	exclusive=['&','C',' N'] #hack
	names=[x for x in lister.urls if x!=' ' and  not (x in exclusive) ]
	lenght=len(names)
	for i in range(0,lenght,7):
		print names[i:i+7]
	print '===================================================================='
	print 'will start to work in 1 min'
	time.sleep(60)