python - exporting dictionary(array) to json

Question

I have an array of dictionaries like so:

myDict[0] = {'date':'today', 'status': 'ok'}
myDict[1] = {'date':'yesterday', 'status': 'bad'}

and I'm trying to export this array to a json file where each dictionary is its own entry. The problem is when I try to run:

dump(myDict, open("test.json", "w"))

It outputs a json file with a number prefix before each entry

{"0": {"date": "today", "status": "ok"}, "1": {"date": "yesterday", "status": "bad"} }

which apparently isn't legal json since my json parser (protovis) is giving me error messages

Any ideas? Thanks

Answer 1

Use a list instead of a dictionary; you probably used:

myDict = {}
myDict[0] = {...}

You should use:

myList = []
myList.append({...}

PS: It seems valid json to me anyways, but it is an object and not a list; maybe this is the reason why your parser is complaining

Answer 2

You should use a JSON serializer...

Also, an array of dictionaries would better serialize to something like this:

[
    {
        "date": "today",
        "status": "ok"
    },
    {
        "date": "yesterday",
        "status": "bad"
    }
]

That is, you should just use a JavaScript array.