python提取同一目录下不同文件夹中的指定文件

def each_file(filepath, new_filepath):

    l_dir = os.listdir(filepath)  # 读取目录下的文件或文件夹

    for one_dir in l_dir:  # 进行循环
        full_path = os.path.join('%s\%s' % (filepath, one_dir))  # 构造路径
        new_full_path = os.path.join('%s\%s' % (new_filepath, one_dir))
#         print(os.listdir(full_path))
        for i in os.listdir(full_path):
            if(os.path.splitext(i)[1] == '.csv'):
                target_path=os.path.join('%s\%s' % (full_path, i))
                shutil.copy(target_path, new_full_path)  # 文件拷贝


if __name__ == '__main__':
    old_path = r'E:\download20201104'
    new_path = r'E:\real_data'
    each_file(old_path, new_path)