如何打印JSON文件? [英] How to prettyprint a JSON file?

问题描述

我有一个JSON文件，我想对其进行漂亮打印-在python中执行此操作最简单的方法是什么?我知道PrettyPrint带有一个对象"，我认为它可以是一个文件，但我不知道如何传递文件-仅使用文件名是不起作用的.

I have a JSON file that is a mess that I want to prettyprint-- what's the easiest way to do this in python? I know PrettyPrint takes an "object", which I think can be a file, but I don't know how to pass a file in-- just using the filename doesn't work.

推荐答案

json模块已经使用indent参数实现了一些基本的漂亮打印:

The json module already implements some basic pretty printing with the indent parameter:

>>> import json
>>>
>>> your_json = '["foo", {"bar":["baz", null, 1.0, 2]}]'
>>> parsed = json.loads(your_json)
>>> print(json.dumps(parsed, indent=4, sort_keys=True))
[
    "foo", 
    {
        "bar": [
            "baz", 
            null, 
            1.0, 
            2
        ]
    }
]

要解析文件，请使用json.load():

with open('filename.txt', 'r') as handle:
    parsed = json.load(handle)

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