Is there a way to remove a layer from a JSON object?

Question

Is there a way to remove a parent layer from a JSON object? For example, let's say I have the following JSON object:

{
    "Hello": "World",
    "Parent": {
        "key1": "val1",
        "key2": "val2",
        "key3": {
            "key3a": "val3a",
            "key3b": "val3b"
        },
        "key4": "val4"
    }
}

But I want to remove the Parent layer and have the JSON object read like the following:

{
    "Hello": "World",
    "key1": "val1",
    "key2": "val2",
    "key3": {
        "key3a": "val3a",
        "key3b": "val3b"
    },
    "key4": "val4"
}

Is there a way to do this?

I would preferably like to accomplish this using Python, but if anyone knows of a way I am open to using other methods to get this done.

Answer 1

Can be done quite easily with dict.pop and dict.update:

import json

data = {
    "Hello": "World",
    "Parent": {
        "key1": "val1",
        "key2": "val2",
        "key3": {
            "key3a": "val3a",
            "key3b": "val3b"
        },
        "key4": "val4"
    }
}

data.update(data.pop("Parent"))

print(json.dumps(data, indent=4))

Output:

{
   "Hello": "World",
   "key1": "val1",
   "key2": "val2",
   "key3": {
       "key3a": "val3a",
       "key3b": "val3b"
   },
   "key4": "val4"
}

This also has the advantage that this will work for pretty much any version of Python.