python实时获取和讯网纸黄金价格信息

python实时获取和讯网纸黄金价格信息

#!/usr/bin/env python
#encoding:utf-8
'''getHexunGold.py 获取和讯网最新的黄金价格信息（人民币／克）'''

from urllib import urlretrieve
from time import sleep
from time import ctime

def getHexunGoldPrice(webpage):
	f = open(webpage)
	lines = f.readlines()
	for eachLine in lines:
		if '' in eachLine:
			print ctime(), ' ------- ', \
			eachLine.strip()[eachLine.strip().index('>') + 1 : eachLine.strip().rindex('<')], \
			'人民币／克'
			break
	f.close()

def download(url='http://gold.hexun.com/zhjhqt/', process=getHexunGoldPrice):
	try:
		retval = urlretrieve(url)[0]
	except IOError:
		retval = None

	if retval:
		process(retval)

if __name__ == '__main__':
	while True:
		#print 'a'
		download()
		sleep(2)