python实现分析apache和nginx日志文件并输出访客ip列表的方法

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