Python如何实现监控程序的执行时间并写入日志？
本文实例讲述了Python实现监控程序执行时间并将其写入日志的方法。分享给大家供大家参考。具体实现方法如下：
# /usr/bin/python
# -*- coding:utf-8 -*-
from time import time
def logged(when):
def log(f,*args,**kargs):
print '''
called:
functions:%s
args: %r
kargs: %r
''' % (f,args,kargs)
def pre_logged(f):
def wrapper(*args,**kargs):
log(f,*args,**kargs)
return f(*args,**kargs)
return wrapper
def post_logged(f):
def wrapper(*args,**kargs):
now = time()
try:
return f(*args,**kargs)
finally:
log(f,*args,**kargs)
print "time delta:%s" % (time()-now)
return wrapper
try:
return {"pre":pre_logged,"post":post_logged}[when]
except KeyError,e:
raise ValueError(e),'must be "pre" or "post"'
@logged("post")
def hello(name):
print "hello,",name
hello("world!")
'''
等同于： hello = logged("post")(hello("world!"))
'''
希望本文所述对大家的Python程序设计有所帮助。
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