Python-libs子文件夹有什么用? [英] Python - what is the libs subfolder for?

问题描述

对我来说，它位于C:\ Python33 \ libs.

For me, it's located at C:\Python33\libs.

作为参考-这与C:\ Python33 \ Lib 不是文件夹相同-请注意大写字母和缺少's'.

For reference - this is not the same folder as C:\Python33\Lib - note the capitalization and lack of an 's'.

在我正在使用的一台计算机上，我只是将.py文件放到libs文件夹中，并且可以像库/模块一样导入和使用它(对不起，我不太了解术语)，无论在哪里我正在从事的项目是

On one computer I was working on, I simply dropped a .py file into the libs folder and could import and use it like a library / module (sorry, I don't really know terminology very well), regardless of where the project I was working on is.

但是，在尝试将其复制到另一台计算机上时，此操作不起作用.尝试导入只会给出没有名为X的模块"错误.

However, in trying to duplicate this on another machine, this doesn't work. Attempting to import simply gives a "no module named X" error.

因此，显然我误解了libs文件夹的用途以及它与Lib文件夹的区别.

So, clearly I'm misunderstanding the purpose of the libs folder, and how it differs from the Lib folder.

那么，到底是什么?

推荐答案

如果将libs/与lib/进行比较，您会注意到后者包含* .py文件，而前者包含* .lib文件.使用文本编辑器进行的进一步研究将显示* .py文件是人类可读的(我希望是)，而* .lib文件不是.

If you compare libs/ vs. Lib/ you'll notice that the latter is full of *.py files and the former has *.lib files. Further investigation with a text editor will show that *.py files are human-readable (I hope) and the *.lib files are not.

这就是真正的区别.如果您想了解更多，.lib文件是静态链接库，用于构建.dll，C扩展名和所有这些好东西.头朝兔子

And that's really the difference. If you want to know more, the .lib files are static-link libraries, used for building .dlls, C extensions, and all that good stuff. Head on down the rabbit hole if that interests you.

您所要解决的问题:您是否应该能够在其中放置模块并能够导入它们?并不真地.这是该文件夹包含在您的路径中的副作用.从模块文档:

On to the meat of your question: are you supposed to be able to drop modules in there and be able to import them? Not really. That is a side effect of that folder being included in your path. From the Modules docs:

导入名为垃圾邮件的模块时，解释器首先搜索 具有该名称的内置模块.如果找不到，则进行搜索 在目录给定的目录列表中查找名为spam.py的文件 变量sys.path. sys.path从以下位置初始化:

When a module named spam is imported, the interpreter first searches for a built-in module with that name. If not found, it then searches for a file named spam.py in a list of directories given by the variable sys.path. sys.path is initialized from these locations:

• 包含输入脚本的目录(或当前目录).
• PYTHONPATH(目录名称列表，其语法与shell变量PATH相同).
• 与安装有关的默认设置.

• the directory containing the input script (or the current directory).
• PYTHONPATH (a list of directory names, with the same syntax as the shell variable PATH).
• the installation-dependent default.

各种安装方法都会修改％PATH％或％PYTHONPATH％，因此我无法告诉您确切的位置；在我的Windows框上，python安装程序为我修改了％PATH％，因此您可能应该先看看那里.值得注意的是，我的路径不包括Python33/libs/，所以我不希望它默认存在.

Various installation methods will modify %PATH% or %PYTHONPATH% so I can't tell you exactly where to look; on my windows box, the python installer modified %PATH% for me, so you should probably look there first. Notably, my path does not include Python33/libs/ so I would not expect it to be there by default.

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