操作文件-取出一个60s内log日志中ip访问次数超过100次的ip

import time
a=0
while True:
    d={}
    f = open(r"/Users/**juan/Downloads/access.log",encoding="utf-8")
    f.seek(a)
    for line in f:
        if line.split() !="":
            f1=line.split(" ")[0]
            if f1 not in d:
                d[f1]=1
            else:
                d[f1] += 1
    a=f.tell()
    print()
    for f1 in d:
        if d.get(f1) > 100:
            print(" %s 出现的次数超过100次"%f1)
    time.sleep(60)