递归查询目录大小

1.查看目录下所有目录和文件

import json, os


def list_dir(path, res):

  for i in os.listdir(path):
    temp_dir = os.path.join(path, i)
    if os.path.isdir(temp_dir):
      temp = {"dirname": temp_dir, 'child_dirs': [], 'files': []}
      res['child_dirs'].append(list_dir(temp_dir, temp))
    else:
      res['files'].append(i)
  return res


def get_config_dirs():
  res = {'dirname': 'root', 'child_dirs': [], 'files': []}
  return list_dir(r'/opt/code/my_code/zk_css', res)

if __name__ == '__main__':  
  print(json.dumps(get_config_dirs()))

来源：http://lvmy.iteye.com/blog/1258824

2.查询目录下的所有文件的总大小

# -*- coding: utf-8 -*-
"""
__title__ = 'get_dir_size02.py'
__author__ = 'yangyang'
__mtime__ = '2018.01.19'
"""
import os

def calc_dir_size(path,res_li):
    for i in os.listdir(path):
        temp_dir = os.path.join(path,i)
        if os.path.isdir(temp_dir):
            calc_dir_size(temp_dir,res_li)
        else:
            res_li += os.path.getsize(temp_dir)
    return res_li

if __name__ == '__main__':
    dirname = r'D:\gitcode\oldboy_python_study\third_module\practice\ftp_upgraded_version\server\user_home\ryan'
    res_li = 0
    return_res = calc_dir_size(dirname,res_li)
    print(return_res)