Python首先在哪里查找文件？ [英] Where does Python first look for files?

问题描述

我试图学习如何在Python中解析.txt文件。这导致我打开解释器（terminal> python）并玩弄。但是，我似乎无法指定正确的路径。 Python首先看什么？

这是我的第一步：

  f = open（/ Desktop / temp / myfile.txt，file1）
  

公然不工作。任何人都可以提出建议？

解决方案

编辑：哦，是的，你的第二个参数是错误的。甚至没有注意到：）

Python看起来在哪里告诉它打开文件。如果你打开/ home / malcmcmul中的解释器，那么这将是活动目录。

如果指定了一个路径，那就是它的外观。你确定/ Desktop / temp是一个有效的路径吗？

一些例子：

• 如果我有一个文件：/home/bartek/file1.txt




• c> python 让我的解释器在 / home / bartek /

目录下


• 这将工作，并获取file1.txt确定： f = open（file1.txt，r）




• 这是行不通的： f = open（some_other_file.txt，r） 。
  

• 只要我指定了正确的路径，就可以工作： f = open（/ home / media / a_real_file.txt ，r）

I'm trying to learn how to parse .txt files in Python. This has led me to opening the interpreter (terminal > python) and playing around. However, I can't seem to be able to specify the right path. Where does Python first look?

This is my first step:

    f = open("/Desktop/temp/myfile.txt","file1")

This blatantly doesn't work. Can anyone advise?

解决方案

Edit: Oh and yes, your second argument is wrong. Didn't even notice that :)

Python looks where you tell it to for file opening. If you open up the interpreter in /home/malcmcmul then that will be the active directory.

If you specify a path, that's where it looks. Are you sure /Desktop/temp is a valid path? I don't know of many setups where /Desktop is a root folder like that.

Some examples:

• If I have a file: /home/bartek/file1.txt

• And I type python to get my interpreter within the directory /home/bartek/

• This will work and fetch file1.txt ok: f = open("file1.txt", "r")

• This will not work: f = open("some_other_file.txt", "r") as that file is in another directory of some sort.

• This will work as long as I specify the correct path: f = open("/home/media/a_real_file.txt", "r")

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