python脚本需要if语句中的缩进块

Question

我正在尝试编写一个从一个文件夹到另一个文件夹的基本备份脚本，并且我让它工作 - 但目录结构没有被复制，只是文件。我也尝试复制子文件夹，例如，c:\temp\docs\file.txt转到d:\temp\docs\file.txt而不只是d:\temp\file.txt

我的问题存在于 if/else 语句的缩进中，但对我来说一切看起来都很好。我究竟做错了什么？

import datetime, time, string, os, shutil

COPY_FROM_LOCATION = 'C:\\xampp\\htdocs\\projects'
folder_date = time.strftime("%Y-%m-%d")
BACKUP_TO_LOCATION = 'D:\\BACKUP\\' + folder_date

#Create a new directory in D:\BACKUP based on today's date so the folder you're trying to copy to actually exists:
if not os.path.exists(BACKUP_TO_LOCATION):
    os.makedirs(BACKUP_TO_LOCATION)

#copy function
def backup(source_folder, target_folder):
    for subdir, dirs, files in os.walk(source_folder):
        if subdir == source_folder :
            new_target_folder = target_folder
        else:
            folder_name = subdir.split("C:\\xampp\\htdocs\\projects\\",1)[-1]
            new_target_folder = target_folder + "\\" + folder_name
        for file in files:
            print "backing up: " + folder_name
            shutil.copy2(os.path.join(subdir, file), new_target_folder) 

backup(COPY_FROM_LOCATION,BACKUP_TO_LOCATION)

这是我收到的错误：

  File "backup.py", line 15
    new_target_folder = target_folder
                    ^
IndentationError: expected an indented block

Answer 1

您混合使用了制表符和空格。

使用其中之一，而不是同时使用两者。最好是空格。