Issue with setting an attribute using getters and setters in Python-CodePudding

Here is my code

class Person:
    def __init__(self, name, age):
        self._name = name
        self._age = age

    @property
    def name(self):
        return self._name

    @name.setter
    def name(self, value):
        self._name = value
        
    @property
    def age(self):
        return self._age
    
    @age.setter
    def age(self, value):
        self._age = age


person = Person("Alice", 30)
print(person.name)  # "Alice"
person.name = "Bob"
print(person.name)  # "Bob"

person.age = 32

And I get the error

`NameError: name 'age' is not defined`

How is it that I can set the name attribute just fine using a getter and a setter but doing the same thing with age doesn't work?

CodePudding user response：

Issue is your parameter name is value, but you are trying to find age, to fix this

class Person:
def __init__(self, name, age):
    self._name = name
    self._age = age

@property
def name(self):
    return self._name

@name.setter
def name(self, value):
    self._name = value
    
@property
def age(self):
    return self._age

@age.setter
def age(self, age):
    self._age = age

CodePudding user response：

class Person:
    def __init__(self, name, age):
        self._name = name
        self._age = age

    @property
    def name(self):
        return self._name

    @name.setter
    def name(self, value):
        self._name = value
    
    @property
    def age(self):
        return self._age

    @age.setter
    def age(self, value):
        self._age = value #(before -> self._age = age)


person = Person("Alice", 30)
print(person.name)  # "Alice"
person.name = "Bob"
print(person.name)  # "Bob"

person.age = 32
print(person.age) #32