【python学习】日志文件里IP访问最
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日志文件例子：
#111.172.249.84 - - [12/Dec/2011:05:33:36 +0800] "GET /p_w_picpaths/i/goTop.png HTTP/1.0" 200 486 "http://wh.xxxx.com/" "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)"
#111.172.249.84 - - [12/Dec/2011:05:33:36 +0800] "GET /p_w_picpaths/i/goTop.png HTTP/1.0" 200 486 "http://wh.xxxx.com/" "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)"
#111.172.249.85 - - [12/Dec/2011:05:33:36 +0800] "GET /p_w_picpaths/i/goTop.png HTTP/1.0" 200 486 "http://wh.xxxx.com/" "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)"
#111.172.249.86 - - [12/Dec/2011:05:33:36 +0800] "GET /p_w_picpaths/i/goTop.png HTTP/1.0" 200 486 "http://wh.xxxx.com/" "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)"
#111.172.249.86 - - [12/Dec/2011:05:33:36 +0800] "GET 111.172.249.86 /p_w_picpaths/i/goTop.png HTTP/1.0" 200 486 "http://wh.xxxx.com/" "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)"代码：
import re
#列出所有IP，放入ipaddress
f=open("/tmp/a.log","r")
ipaddress = []
lines = f.readlines()
for line in lines:
ipaddress.extend(re.findall(r'([1-2]?\d?\d\.[1-2]?\d?\d\.[1-2]?\d?\d\.[1-2]?\d?\d)',line))
print ipaddress
f.close()
#分析ipaddress 里的IP，构建一个key-value字典
iptab = {}
for ipstr in ipaddress:
if ipstr in iptab:
iptab[ipstr] += 1
else:
iptab[ipstr] = 1
print 'iptab = %s' % iptab
#对values的所有值进行倒序排列
ipnum = iptab.values()
ipnum.sort(reverse=True)
print ipnum
#找出values值前三的key，即访问量前三的IP
toplist=[]
for num in ipnum[0:3]:
for key in iptab:
if iptab[key] == num and key not in toplist :
print "%s has %s times" % (key,num)
toplist.append(key)
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