Python list, tuple and dictionary to JSON?

Question

What's the best way of displaying this as JSON?

{'foo': 'bar'}
[1,2,3,4,5]

My partial solution:

import json

def json_tuple(*args, **kwargs):   
    if args:
        if kwargs:
            return json.dumps(args), json.dumps(kwargs)
        return json.dumps(args)

    return json.dumps(kwargs)

Provides:

>>> json_tuple(1,2,3,4,5, **{'foo': 'bar'})

('[1, 2, 3, 4, 5]', '{"foo": "bar"}')

Would putting the args list in kwargs—e.g.: under an args key—be the only solution?

score 6 · Accepted Answer · answered Mar 08 '13 at 08:27

6

If you're just looking for valid JSON, you can put those values into a top-level array:

import json

def jsonify(*args, **kwargs):
    return json.dumps((args, kwargs))  # Tuples are faster to create

Which yields:

'[[1, 2, 3, 4, 5], {"foo": "bar"}]'

answered Mar 08 '13 at 08:27

Blender

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score 1 · Answer 2 · answered Mar 08 '13 at 08:23

1

My "ugly" solution:

import json

def jsonify(*args, **kwargs):   
    if args:
        kwargs.update({'args': args})

    return json.dumps(kwargs)

Provides:

>>> jsonify(1,2,3,4,5, **{'foo': 'bar'})

'{"foo": "bar", "args": [1, 2, 3, 4, 5]}'

answered Mar 08 '13 at 08:23

A T

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Will fail if there's an `arg` kwarg. – bereal Mar 08 '13 at 08:30

Python list, tuple and dictionary to JSON?

2 Answers2