Python 使用os.walk（）连接子目录

我无法访问

左列表

和

右列表

来加入它们的路径，因为它们肯定超出了范围

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谁能告诉我如何用更好的代码结构来解决这个问题吗？

您可以在for之外初始化列表

with open('images.txt', 'w') as text_file:
    for folderName, subfolders, f in os.walk(root_folder):
        for subfolder in subfolders:
            if subfolder == 'image_02':
                left_path = os.path.join(folderName, subfolder, 'data')
                left_list = [f for f in sorted(os.listdir(left_path)) if
                             not f.startswith('.') and f.endswith('.png')]
            elif subfolder == 'image_03':
                right_path = os.path.join(folderName, subfolder, 'data')
                right_list = [f for f in sorted(os.listdir(right_path)) if
                              not f.startswith('.') and f.endswith('.png')]
    if len(left_list) != len(right_list):
        print('ERROR: directory {} does not match with {}'.format(left_path, right_path))
        continue

    for left_file, right_file in zip(left_list, right_list):
        text_file.write(
            os.path.join(left_path, left_file) + " " + os.path.join(right_path, right_file) + "\n")

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这将是一个更好的方式

您将使用新值覆盖列表，而旧值将在此处丢失。您不是每次都在if语句中覆盖列表吗？所以问题是您丢失了旧值？什么是

数据

只是目录结构中的一些文件<代码>数据只是该文件夹中的另一个目录，我们有图像

子文件夹

将仅出现在第一个循环中。在随后的循环中它是空的。最好说明一下您的目录结构！

with open('images.txt', 'w') as text_file:
    left_list = []
    right_list = []

    for folderName, subfolders, f in os.walk(root_folder):
        for subfolder in subfolders:
            if subfolder == 'image_02':
                left_path = os.path.join(folderName, subfolder, 'data')
                left_list = [f for f in sorted(os.listdir(left_path)) if
                         not f.startswith('.') and f.endswith('.png')]
            elif subfolder == 'image_03':
                right_path = os.path.join(folderName, subfolder, 'data')
                right_list = [f for f in sorted(os.listdir(right_path)) if
                          not f.startswith('.') and f.endswith('.png')]
    if len(left_list) != len(right_list):
        print('ERROR: directory {} does not match with {}'.format(left_path, right_path))
        continue

    for left_file, right_file in zip(left_list, right_list):
        text_file.write(
        os.path.join(left_path, left_file) + " " + os.path.join(right_path, right_file) + "\n")

    with open(dataset['destination'], 'w') as text_file:
        left_list = []
        right_list = []

        for folderName, subfolders, f in os.walk(root_folder):
            for subfolder in subfolders:
                if subfolder == 'image_02':
                    left_path = os.path.join(folderName, subfolder, 'data')
                    for f in sorted(os.listdir(left_path)):
                        if not f.startswith('.') and f.endswith('.png'):
                            left_list.append(f)
                elif subfolder == 'image_03':
                    right_path = os.path.join(folderName, subfolder, 'data')
                    for f in sorted(os.listdir(right_path)):
                        if not f.startswith('.') and f.endswith('.png'):
                            right_list.append(f)

        if len(left_list) != len(right_list):
            print('ERROR: directory {} does not match with {}'.format(left_path, right_path))
            continue

        for left_file, right_file in zip(left_list, right_list):
            text_file.write(
                os.path.join(left_path, left_file) + " " + os.path.join(right_path, right_file) + "\n")