os.path.dirname(__file__) 不存在吗? [英] os.path.dirname(__file__) doesn't exist?

问题描述

可能的重复:
os.path.dirname(__file__) 返回空

我的一个 Python 脚本的用户说他们收到了以下错误:

A user of a Python script of mine said they got the following error:

Traceback (most recent call last):
File "MCManager.py", line 7, in <module>
os.chdir(os.path.dirname(__file__))
OSError: [Errno 2] No such file or directory: ''

脚本所在的目录怎么可能不存在?是兼容性问题吗?我使用的操作系统和版本与出现错误的操作系统和版本相同，但无法复制.

How could the directory the script is in not exist? Is it a compatibility issue? I use the same OS and version as the one with the error, and haven't been able to replicate this.

推荐答案

简单:

wim@wim-zenbook:~$ echo "print __file__" > /tmp/spam.py
wim@wim-zenbook:~$ python /tmp/spam.py 
/tmp/spam.py
wim@wim-zenbook:~$ cd /tmp
wim@wim-zenbook:/tmp$ python spam.py
spam.py

一种解决方案是使用os.path.abspath(__file__)，例如

One solution is to use os.path.abspath(__file__), e.g.

wim@wim-zenbook:~$ cat /tmp/spam.py
import os
print __file__
print os.path.dirname(__file__)
print os.path.dirname(os.path.abspath(__file__))
wim@wim-zenbook:~$ python /tmp/spam.py
/tmp/spam.py
/tmp
/tmp
wim@wim-zenbook:~$ cd /tmp
wim@wim-zenbook:/tmp$ python /tmp/spam.py
/tmp/spam.py
/tmp
/tmp
wim@wim-zenbook:/tmp$ python spam.py
spam.py

/tmp

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