python分析apache和nginx日志文件输出访客ip列表的代码

把做工程过程中比较好的代码片段做个备份，下面资料是关于python分析apache和nginx日志文件输出访客ip列表的代码。

ips = {}

fh = open("/var/log/nginx/access.log", "r").readlines()
for line in fh:
    ip = line.split(" ")[0]
    if 6 < len(ip) <=15:
        ips[ip] = ips.get(ip, 0) + 1
print ips