使用python装饰器计算函数运行时间

#coding:utf-8 
import urllib2,re,time,random,os,datetime
import HTMLParser
import sys 
reload(sys) 
sys.setdefaultencoding('utf-8') 
 
#计算时间函数 
def print_run_time(func): 
 def wrapper(*args, **kw): 
 local_time = time.time() 
 func(*args, **kw) 
 print 'current Function [%s] run time is %.2f' % (func.__name__ ,time.time() - local_time) 
 return wrapper 

class test:
	def __init__(self):
	self.url=''
	#获取网页页面内容
	#即装饰器不管参数有多少，都能使用
	@print_run_time
	def get_html(self,url):
	headers = {'User-Agent':'Mozilla/5.0 (Windows NT 6.2; rv:16.0) Gecko/20100101 Firefox/16.0'}#设置header
	req = urllib2.Request(url=url,headers=headers)
	try:
	html = urllib2.urlopen(req).read().decode('utf-8')
	html=HTMLParser.HTMLParser().unescape(html)#处理网页内容， 可以将一些html类型的符号如" 转换回双引号
	#html = html.decode('utf-8','replace').encode(sys.getfilesystemencoding())#转码:避免

current Function [get_html] run time is 0.29 
end 
current Function [run] run time is 0.29 
05.python_study/03.decorator.py 
current Function [get_current_dir] run time is 0.00