这两周组里面几位想学习python，于是我们就创建了一个这样的环境和氛围来给大家学习。

昨天在群里，贴了一个需求，就是统计squid访问日志中ip 访问数和url的访问数并排序，不少同学都大体实现了相应的功能，我把我简单实现的贴出来，欢迎拍砖：

日志格式如下：

复制代码 代码如下:
%ts.%03tu %6tr %{X-Forwarded-For}>h %Ss/%03Hs %h\” \”%{User-Agent}>h\” %{Cookie}>h

复制代码 代码如下:
1372776321.285      0 100.64.19.225 TCP_HIT/200 8560 GET http://img1.jb51.net/games/0908/19/1549401_3_80x100.jpg  – NONE/- image/jpeg \”http://www.jb51.net/\” \”Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; QQDownload 734; .NET4.0C; .NET CLR 2.0.50727)\” pcsuv=0;%20pcuvdata=lastAccessTime=1372776317582;%20u4ad=33480hn;%20c=14arynt;%20uf=1372776310453

复制代码 代码如下:
#!/usr/bin/python
# -*- coding: utf-8 -*-
import sys
from optparse import OptionParser
\’\’\’
    仅仅是一个关于日志文件的测试，统计处access.log 的ip数目
\’\’\’
try:
    f = open(\’/data/proclog/log/squid/access.log\’)
except IOError,e:
    print \”can\’t open the file:%s\” %(e)
 
def log_report(field):
    \’\’\’
        return the field of the access log
    \’\’\’
    if field == \”ip\”:
        return  [line.split()[2] for line in f]
    if field == \”url\”:
        return  [line.split()[6] for line in f]
def log_count(field):
    \’\’\’
        return a dict of like {field:number}
    \’\’\’
    fields2 = {}
    fields = log_report(field)
    for field_tmp in fields:
        if field_tmp in fields2:
            fields2[field_tmp] += 1
        else:
            fields2[field_tmp] = 1
    return fields2
def log_sort(field,number = 10 ,reverse = True):
    \’\’\’
        print the sorted fields to output
    \’\’\’
    for v in sorted(log_count(field).iteritems(),key = lambda x:x[1] , reverse = reverse )[0:int(number)]:
        print v[1],v[0]
if __name__ == \”__main__\”:
    parser =OptionParser(usage=\”%prog [-i|-u] [-n num | -r]\” ,version = \”1.0\”)
    parser.add_option(\’-n\’,\’–number\’,dest=\”number\”,type=int,default=10,help=\” print top line of the ouput\”)
    parser.add_option(\’-i\’,\’–ip\’,dest=\”ip\”,action = \”store_true\”,help=\”print ip information of access log\”)
    parser.add_option(\’-u\’,\’–url\’,dest=\”url\”,action = \”store_true\”,help=\”print url information of access log\”)
    parser.add_option(\’-r\’,\’–reverse\’,action = \”store_true\”,dest=\”reverse\”,help=\”reverse output \”)
    (options,args) = parser.parse_args()
 
    if len(sys.argv) < 2:
        parser.print_help()
    if options.ip and options.url:
         parser.error(\’ -i and -u  can not be execute at the same time \’)
    if options.ip :
        log_sort(\”ip\”, options.number , True and options.reverse  or False)
    if options.url:
        log_sort(\”url\”, options.number , True and  options.reverse or False)
 
    f.close()

效果如下：