JSON with UUID serialization support

json_with_uuid_support.py

from utils import json
from uuid import uuid4

json.dumps({'id': uuid4()})

utils.py

import json
from uuid import UUID

def json_with_uuid_support():
    """Adds UUID serialization support to native json"""
    old = json.JSONEncoder.default
    def fn(self, o):
        if isinstance(o, UUID): return str(o)
        return old(self, o)
    json.JSONEncoder.default = fn
    return json

json = json_with_uuid_support()