class human:
        def __init__(self):
                self.d =  {'name': {'first': '', 'last': ''},
                     'age': '', 
                     'adress': {'home': '', 'street': '', 'town': ''}
                     }
                self.f = list()
        
        
        def setData(self):                                                    
                self.d['name']['first'] = input('Введите имя:     ')
                self.d['name']['last']  = input('Введите фамилию:     ')
                self.d['age'] = input('Введите возраст:     ')
                self.f = input('Введите адрес:     ')      # в формате <город улица дом> через пробел
                self.f = self.f.split(' ')
                self.d['adress']['town']   = self.f[0]
                self.d['adress']['street'] = self.f[1]
                self.d['adress']['home']   = self.f[2]
                return 0
        def getData(self):
                print(self.d.keys())
                print(self.d.values())
newHuman = human()
newHuman.setData()
newHuman.getData()

class human:
    def __init__(self):
        self.first_name = ""
        self.last_name = ""
        self.age = 0
        self.adress = {'home': '', 'street': '', 'town': ''}
    def setAge(self, age):
        self.age=age
newHuman = human()
newHuman.setAge(input('Введите возраст:     '))

>>> class Human:
...     def __init__(self, name, lastname):
...         self.name = name
...         self.lastname = lastname
...     def __repr__(self):
...         return 'H({}, {})'.format(self.name, self.lastname)
... 
>>> def human_from_string(s):
...     return Human(*s.split(None, 1))
... 
>>> def human_from_input():
...     name = input('Name: ')
...     lastname = input('Lastname: ')
...     return Human(name, lastname)
... 
>>> 
>>> h1 = human_from_string('John Doe')
>>> h2 = human_from_input()
Name: Jane
Lastname: Roe
>>> h1, h2
(H(John, Doe), H(Jane, Roe))
>>>