Dynamically build a JSON object with an array inside in Python3?

Question

I have to build a json out of an array and send it through a socket to a java application and open it there. I have somehting like

array = ["a","b","c"]

{
  "events":[
        {"id":array[0], "name":"bla1"},
        {"id":array[1], "name":"bla2"}
   ],
   "name": "bla"
}

I have try to use concatenation to no success. How can I do it?

Show us the code that sends the data through the socket, and the code that opens it on the other end. — Kevin
– Kevin, Commented Aug 20, 2018 at 17:26
Concatenation of what?? Also, have a look a at the built-in json module. — ForceBru
– ForceBru, Commented Aug 20, 2018 at 17:28

Ben · Accepted Answer · 2018-08-20 17:28:19Z

1

Try:

o ={
    "events":[{"id": item, "name": "blah%s" %(index + 1)}
              for index, item in enumerate(array)],
   "name": "bla"
}

print(o)
# {'events': [{'id': 'a', 'name': 'blah1'}, {'id': 'b', 'name': 'blah2'}, {'id': 'c', 'name': 'blah3'}], 'name': 'bla'}

answered Aug 20, 2018 at 17:28

Ben

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2 Comments

andres viena Over a year ago

this did what I wanted. Thanks!

Ben Over a year ago

@andresviena, awesome! Can you please accept it as an answer so other people know and I get those sweet sweet stackoverflow points?

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