在Python中使用设置文件的最佳做法是什么? [英] What's the best practice using a settings file in Python?

问题描述

我有一个运行有很多参数的命令行脚本.现在到了我有太多参数的地步，我也想以字典形式有一些参数.

I have a command line script that I run with a lot of arguments. I have now come to a point where I have too many arguments, and I want to have some arguments in dictionary form too.

因此，为了简化操作，我想使用设置文件来运行脚本.我真的不知道该使用什么库来解析文件.最佳做法是什么?我当然可以自己动手做一些事情，但是如果有为此提供的图书馆，我就会不知所措.

So in order to simplify things I would like to run the script with a settings file instead. I don't really know what libraries to use for the parsing of the file. What's the best practice for doing this? I could of course hammer something out myself, but if there is some library for this, I'm all ears.

一些需求":

• 我希望它不是一个简单易懂的文本文件，而不是使用pickle.
• 我希望能够在其中添加类似字典的数据，即应支持某种形式的嵌套.

一个简化的伪示例文件:

A simplified pseudo example file:

truck:
    color: blue
    brand: ford
city: new york
cabriolet:
    color: black
    engine:
        cylinders: 8
        placement: mid
    doors: 2

推荐答案

您可以有一个常规的Python模块，例如config.py，如下所示:

You can have a regular Python module, say config.py, like this:

truck = dict(
    color = 'blue',
    brand = 'ford',
)
city = 'new york'
cabriolet = dict(
    color = 'black',
    engine = dict(
        cylinders = 8,
        placement = 'mid',
    ),
    doors = 2,
)

并像这样使用它:

import config
print config.truck['color']  

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