how to create a nested dict..

[Larz60+]

mydict = {
    'Boston': {
        'Resturants': {
            'Spoke Wine Bar': {
                'Addr1': '89 Holland St',
                'City': 'Sommerville',
                'ZipCode': '02144',
                'Phone': '617-718-9463'
            },
            'Highland Kitchen': {
                'Addr1': '150 Highland Ave',
                'City': 'Sommerville',
                'ZipCode': '02144',
                'Phone': '617-625-1131'
            }
        },
        'Hotels': {
            ....
        }
    }
}