Removing JSON property in array of objects

Question

I have a JSON array that I\'m cleaning up in Python. I want to remove the imageData property:

data.json

[{\"title\": \"         


        

Answer 1

If not all the elements have an imageData key, then using del will cause an KeyError exception. You could guard against that by using pop with a default:

for item in data: 
    item.pop('image', None)

Answer 2

[ item for item in data if not item['imageData'] ]

is empty becaus all have imageData. You are just testing for it, not removing it.

Loop over date and del item['imageData'] on each item.

Answer 3

How about:
clean_data = [k:v for k,v in data.iteritems() if k != 'imageData']

Or a dictionary expresion/comprehension if you want a dictionary:
clean_data = {k:v for k,v in data.iteritems() if k != 'imageData'}

Answer 4

An easy solution to your problem is deleting the unwanted key in place, with del:

import json

with open('data.json') as json_data:
    data = json.load(json_data)
    for element in data: 
        del element['imageData'] 

You should add some safety checks, but you get the idea.