python分析apache和nginx日志文件输出访客ip列表

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)