获取文件md5,输出进度条,列出所有文件,获取文件夹内部文件总大小

import hashlib
import os

# 获取文件md5值
def getFileMd5(filename):
    if not os.path.isfile(filename):
        return
    myhash = hashlib.md5()
    with open(filename, 'rb')as f:
        while True:
            b = f.read(8096)
            if not b:
                break
            myhash.update(b)
    return myhash.hexdigest()


def print_progress_bar(description, iteration_counter, total_items, progress_bar_length=20):
    """
    输出进度条程序
    """
    import sys

    percent = float(iteration_counter) / total_items
    hashes = '>' * int(round(percent * progress_bar_length))
    spaces = ' ' * (progress_bar_length - len(hashes))
    sys.stdout.write("\r{0}: [{1}] {2}%".format(description, hashes + spaces, int(round(percent * 100))))
    sys.stdout.flush()
    if total_items == iteration_counter:
        print("\r")


# 列出某路径下所有文件
def listdirs(f, i=1, dirs=None):
    if dirs is None:
        dirs = []
    fs = os.listdir(f)
    for f1 in fs:
        tmp_path = os.path.join(f, f1)
        if not os.path.isdir(tmp_path):
            dirs.append('-' * i + str(tmp_path.split(r'/')[-1]))
        else:
            dirs.append('-' * i + str(tmp_path.split(r'/')[-1]))
            listdirs(tmp_path, i + 2, dirs=dirs)
    return dirs


import os
import os.path

# 获取某个目录下所有文件大小
def get_total_size(path, list1=None):
    if list1 is None:
        list1 = []
    fileList = os.listdir(path)  # 获取path目录下所有文件
    for filename in fileList:
        pathTmp = os.path.join(path, filename)  # 获取path与filename组合后的路径
        if os.path.isdir(pathTmp):  # 判断是否为目录
            get_total_size(pathTmp, list1)  # 是目录就继续递归查找
        elif os.path.isfile(pathTmp):  # 判断是否为文件
            filesize = os.path.getsize(pathTmp)  # 如果是文件，则获取相应文件的大小
            # print('目录中的子文件大小：%d字节' % filesize)
            list1.append(filesize)  # 将文件的大小添加到列表
    return sum(list1)