How to remove a JSON object in an array with Python?

Question

Using Python3, I have a JSON output stored in a variable. The output contains something like this:

    {
    "department": "inventory",
    "products": [
        {
            "color": "red",
            "shape": "circle",
            "size": "large"
        },
        {
            "color": "blue",
            "shape": "square",
            "size": "small"
        },
        {
            "color": "green",
            "shape": "triangle",
            "size": "medium"
        }
    }

I'm trying to remove any object, within the "products" array, that have a value for "size" as "large" or "medium", leaving with a new output of:

    {
    "department": "inventory",
    "products": [
        {
            "color": "blue",
            "shape": "square",
            "size": "small"
        },
    }

I am somewhat successful using a combination of a for statement with an if statement outside of the array using pop, but I can't seem to figure out how to do it just for the objects within the products array.

I have tried the following:

    for element in products
     if last_login[i]["size"] == "medium":
         del element

Which just gives me this:

    KeyError: 0

Please feel free to ask more questions if needed,

Any help would be greatly appreciated!

Answer 1

Instead of deleting you can just filter and reassign

import json

d = json.loads(json_data)
d['products'] = [x for x in d['products'] if x['size'] not in ('large', 'medium')]