python分析nignx访问日志脚本分享

#!/usr/bin/env python 
# coding=utf-8 
 
#------------------------------------------------------ 
# Name:     nginx 日志分析脚本 
# Purpose:   此脚本只用来分析nginx的访问日志 
# Version:   1.0 
# Author:    LEO 
# Created:   2013-05-07 
# Modified:   2013-05-07 
# Copyright:  (c) LEO 2013 
#------------------------------------------------------ 
 
import sys 
import time 
 
#该类是用来打印格式 
class displayFormat(object): 
 
  def format_size(self,size): 
    '''''格式化流量单位''' 
    KB = 1024      #KB -> B B是字节 
    MB = 1048576    #MB -> B 
    GB = 1073741824   #GB -> B 
    TB = 1099511627776 #TB -> B 
    if size >= TB : 
      size = str(size / TB) + 'T' 
    elif size = GB and size = MB and size