Python：打印目录下最大的十个文件

#!/usr/bin/env python

import os

import sys

import operator

def gen_dic(topdir):

    dic = {}

    a = os.walk(topdir)

    for p, d, f in a:

        for i in f:

            fn = os.path.join(p, i)

            f_size = os.path.getsize(fn)

            dic[fn] = f_size

    return dic

if __name__ == ‘__main__‘:

    dic = gen_dic(sys.argv[1])

    sorted_dic = sorted(dic.iteritems(), key=operator.itemgetter(1), reverse=True)

    for k, v in sorted_dic[:10]:

        print k, ‘==>‘, v