创建Python包并导入模块 [英] create Python package and import modules

问题描述

我正在尝试编写我的第一个Python包，几乎所有模块都需要使用NumPy.我应该在每个模块中写import numpy还是在软件包中有什么地方可以导入一次，以便每个模块都可以使用?最好的方法是什么?

I'm trying to write my first Python package, and almost all my modules will need to use NumPy. Should I write import numpy in every single module or is there some place in the package I can just import it once so every module can use it? What's the best way to do this?

推荐答案

是的，只需将其导入所需的任何地方即可.

Yes, just import it everywhere it's needed.

不要太聪明了，编写的函数可以为您导入所有内容，或者元模块可以为您导入内容，并且您可以从中import *；所有这些只会使您的代码难以阅读，而这正是发生错误的另一个地方.

Don't get too clever with writing functions that import everything for you or metamodules that import things and from which you import *; all of that only serves to make your code hard to read and is just another place for bugs to happen.

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