wrong json output in python

Question

I'm sure this is simple but my heads not with it today, I'm trying to output a JSON file in this format:

{"A": {"B": [1, 1, 1, 1, 1, 1]}}

My code so far is:

jsonobj = {"A":{"B":[]
                      },
           }
var1 = 1
jsonobj["A"]["B"].append(dict(f=var1))
with open('data.json', 'w') as f:
    json.dump(jsonobj, f)
print jsonobj

As you can guess its a mismatch of code from StackOverflow and outputting wrong,

{'A': {'B': [{'f': 1}]}}

Sure it's an easy one, Thanks in advance.

Why can't you do jsonobj = {"A": {"B": [1, 1, 1, 1, 1, 1]}}, what's the dynamic part? — timgeb
– timgeb, Commented May 19, 2017 at 11:32

itzMEonTV · Accepted Answer · 2017-05-19 11:24:43Z

1

You need to do

jsonobj["A"]["B"].append(var1)

If it is like

var1 = [1,1,1,1]
jsonobj["A"]["B"].extend(var1)

answered May 19, 2017 at 11:24

itzMEonTV

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1 Comment

timgeb Over a year ago

This does not produce {"A": [{"B": [1, 1, 1, 1, 1, 1]}]} though which OP said was the desired result.

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