统计nginx日志IP的访问次数

nginx的访问日志位置：'/home/nginx/logs/access.log'

import re

def count_patt(fname, patt):
    cpatt = re.compile(patt)
    result = {}

    with open(fname) as fobj:
        for IP in fobj:
            m = cpatt.search(IP)
            if m:
                key = m.group()
                result[key] = result.get(key, 0) + 1 #第一次字典为空，get方法设置没找到"IP"返回"0"（默认返回查不到返回None），第二次找到IP，自加1
    return result

if __name__ == '__main__':
    fname = '/home/nginx/logs/access.log'
    # fname = '/home/nginx/logs/error.log'
    ip = '^(\d+\.){3}\d+'   # 日志开头的ip地址
    print(count_patt(fname, ip))