字典的例子

people = {
    'Alice':{
        'phone': '2341',
        'addr': 'Foo driver 23'
    },

    'Beth': {
        'phone': '9102',
        'addr': 'Bar street 42'
    },

    'Cecil': {
        'phone': '3158',
        'addr': 'Baz avenue 90'
    }
}


labels = {
    'phone':'phone number',
    'addr': 'address'
}

name = raw_input('Name: ')
request = raw_input('Phone number (p) or address (a)?')

if request == 'p': 
    key='phone'
if request == 'a': 
    key='addr'

# supply default value
person = people.get(name, {})
label = labels.get(key, key)
result = person.get(key, 'not available')


print "%s's %s is %s." % (name, label, result)