Week 9 - People Boolean

def getkey(dictname,values):
    key=[]
    for items in dictname :
        if dictname[items] == values:
            key.append(items)
    return key

names = ['Alice', 'Bob', 'Cathy', 'Dan', 'Ed', 'Frank', 'Gary', 'Helen', 'Irene', 'Jack', 'Kelly', 'Larry']
ages = [20, 21, 18, 18, 19, 20, 20, 19, 19, 19, 22, 19]

people = dict(zip(names,ages))

print 'Dan' in getkey(people,18) and 'Cathy' in getkey(people,18)
print 'Ed' in getkey(people,19) and 'Helen' in getkey(people,19)
print 'Irene' in getkey(people,19) and 'Jack' in getkey(people,19) and 'Larry'in getkey(people,19)
print 'Alice' in getkey(people,20) and 'Frank' in getkey(people,20) and 'Gary' in getkey(people,20)
print getkey(people,22) == ['Kelly']
print getkey(people,23) == []