Поиск IP-адреса, который больше всего делал запросов к серверу, согласно access.log

zhgunfinder.py

#!/usr/bin/env python2
# -*- coding: utf-8 -*-
import os
import sys
import fileinput
"""
Ищет наиболее активный IP-адрес в логах.
"""


def findmostIP(log):
    ip_dict = {}
    for line in log:
        # we assume that logline looks like an "ip time ..."
        ip = line.split(" ")[0]

        if ip_dict.get(ip) is None:
            ip_dict[ip] = 1
        else:
            ip_dict[ip] += 1

    max_ip = max(ip_dict, key=ip_dict.get)
    return "%s: %d" % (max_ip, ip_dict[max_ip])


if __name__ == "__main__":

    # read from stdin or from a file
    if len(sys.argv) > 1 and "-" in sys.argv[1]:
        print(findmostIP(fileinput.input()))
    elif len(sys.argv) > 1:
        if os.path.isfile(sys.argv[1]):
            print(findmostIP(open(sys.argv[1]).readlines()))
        else:
            exit("%s is not a file" % sys.argv[1])
    else:
        exit("Use \"-\" as an argument to read from stdin or filename to read from it.")