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:
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# /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。