import json

x = {
    "name" : "Jhon",
    "age" : 30,
    "married" : True,
    "divorced " : False,
    "children" : ("Ann" , "Billy"),
    "pets" : None,
    "cars":[
        {"model": "BMW230","mpg": 27.5},
        {"model":"Ford Edge","mpg" : 24.1}

    ]

}
#print(json.dumps(x, indent=4))
#print(json.dumps(x, indent=4, separators=(" . ", " = ")))
print(json.dumps(x, indent=4, sort_keys= True))