Python:"import posix"问题 [英] Python: "import posix" question

问题描述

如果导入os模块，则可以运行以下命令来推断os.py的位置

If I import os module, I can run the following to infer the location of os.py

>>> import os
>>> print os.__file__
/usr/lib/python2.6/os.pyc

但是，当我导入posix时，它没有__file__属性.是因为它是在python运行时的一部分而不是在标准库中实现的?

However, when I import posix, it does not have the __file__ attribute. Is it because it is implemented as a part of the python runtime, not as a standard library?

我如何仅使用python官方文档就能找到更多类似的信息?

How can I find out more information like this using solely the python official documentation?

推荐答案

这是一个C模块.它既可以内置到Python二进制文件中，也可以编译为共享库.在您的情况下，它是在

It's a C module. It can be either built into the Python binary or compiled as a shared library. In your case it is compiled in

官方文档说不要直接导入它，您应该使用该功能通过os

The official docs say not to import it directly, and you should use the functionality provided via os

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