如何在python中移回一个文件夹 [英] How to move to one folder back in python

问题描述

实际上需要走一些路并执行一些命令，下面是代码

Actually need to go some path and execute some command and below is the code

代码:

import os
present_working_directory = '/home/Desktop/folder' 

目前我在folder

if some_condition == true :
    change_path = "nodes/hellofolder"
    os.chdir(change_path)
    print os.getcwd()
if another_condition  == true:
    change_another_path = "nodes" 
    os.chdir(change_another_path) 
    print os.getcwd()

**Result**:
'/home/Desktop/folder/nodes/hellofolder'
python: [Errno 1] No such file or directory

实际上，这里发生的是我第一次使用os.chdir()时目录已更改为

Actually whats happening here is when i first used os.chdir() the directory has changed to

'/home/Desktop/folder/nodes/hellofolder'，

但是对于第二个，我需要通过移回一个文件夹

but for the second one i need to run a file by moving to one folder back that is

'/home/Desktop/folder/nodes'

任何人都可以让我如何在python中将一个文件夹移回

So can anyone let me how to move one folder back in python

推荐答案

就像在shell中一样.

Just like you would in the shell.

os.chdir("../nodes")

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