在Python中访问相对路径 [英] Accessing relative path in Python

问题描述

我正在运行Mac OS X环境，习惯于使用〜/提供对当前用户目录的访问.

I'm running a Mac OS X environment and am used to using ~/ to provide the access to the current user's directory.

例如，在我的python脚本中，我只是尝试使用

For example, in my python script I'm just trying to use

os.chdir("/Users/aaron/Desktop/testdir/")

但想使用

os.chdir("~/Desktop/testdir/")

尝试运行此文件或目录时，没有出现此类文件或目录错误.有什么想法吗?

I'm getting a no such file or directory error when trying to run this. Any ideas?

推荐答案

您将需要使用 os.path.expanduser(path)

You'll need to use os.path.expanduser(path)

os.chdir("~/Desktop/testdir/")正在当前工作目录中寻找名为〜"的目录.

os.chdir("~/Desktop/testdir/") is looking for a directory named "~" in the current working directory.

还要注意该函数的文档-特别是，您需要正确设置$HOME环境变量以确保进行扩展.在大多数情况下，这不会有问题，但是如果不进行扩展，那可能就是原因.

Also pay attention to the documentation of that function - specifically that you'll need the $HOME environment variable set properly to ensure that the expansion takes place. Most of the time this wont be a problem but if the expansion doesn't take place, that's the likely reason.

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