在Python中布置导入路径，简单直接？ [英] Lay out import pathing in Python, straight and simple?

问题描述

如果一组Python开发人员希望将他们的共享代码放在某个层次结构中，那么结构是什么，以及相关的导入语法是什么？

java风格的引用也适用于Python吗？即，目录是否对应点？

什么是内部使用专用的Python代码库的标准设置，以及从该库区域导入的语法是什么，比如3级深度？

我读过学习Python，看到PYTHONPATH，现在已经花了几个星期的代码，喜欢它，但我只是在重要的情况下密切关注琐事。如果过于笼统，请寄回给我。

解决方案

如果一组Python开发人员想要将他们的共享代码放在某个层次结构中，结构是什么，相关的导入语法是什么？

你把它放在一起在您自己的文件夹下的C：\ python26 \Lib \site-packages \目录中。

在该文件夹中，您应该包含一个__init__.py文件将在导入时运行，这可以是空的。

java风格的引用是否也适用于Python？即，目录是否对应点？

是的，只要目录包含__init__.py文件。

什么是内部使用的Python代码库的标准设置，以及从该库区域导入的语法是什么，比如3级深度？

  MyCompany / MyProject /  - > import MyCompany.MyProject 
  

If a group of Python developers wants to put their shared code somewhere, in a hierarchical structure, what's the structure, and what's the related "import" syntax?

Does java-style reference work in Python also? I.e., do directories correspond to dots?

What is standard setup for an internal-use-only library of Python code, and what's the syntax for imports from that library area, say 3 levels deep?

I've read Learning Python, saw PYTHONPATH, been fiddling with code for a few weeks now, love it, but I'm just dense on "import" beyond trivial cases. If too general send me back to the books.

解决方案

If a group of Python developers wants to put their shared code somewhere, in a hierarchical structure, what's the structure, and what's the related "import" syntax?

You put it in your C:\python26\Lib\site-packages\ directory under your own folder.

Inside that folder you should include an __init__.py file which will be run upon import, this can be empty.

Does java-style reference work in Python also? I.e., do directories correspond to dots?

Yes as long as the directories contain __init__.py files.

What is standard setup for an internal-use-only library of Python code, and what's the syntax for imports from that library area, say 3 levels deep?

MyCompany/MyProject/ -> import MyCompany.MyProject

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