Python getters and setters

Sephiroth_dude

Learning about oop in python, bit confused about how getters and setters work, could someone please look at this code and tell me why its not running?

class Person2:

    def __init__(self,name,age):
        self.set_name(name)
        self.set_age(age)

    def get_name(self):
        return self.__name

    def set_name(self,name):
        self.__name = name

    def get_age(self):
        return self.__age

    def set_age(self,value):
        if value < 18:
            raise ValueError ("AGE INVALID")
        self.__age = value

    def __str__(self):
        return "Name: " + __name + "\nAge: " + str(age)

p = Person2("Tom",17)
print(p)

Colonel Panic

You're setting age to 17 so it's raising a value error.

Sephiroth_dude

Colonel Panic wrote: »

You're setting age to 17 so it's raising a value error.

Even when its greater than 18 it fails

Message=name '_Person2__name' is not defined
Source=C:\Users\Sephiroth\source\repos\Person2\Person2\Person2.py
StackTrace:
File "C:\Users\Sephiroth\source\repos\Person2\Person2\Person2.py", line 22, in __str__
return "Name: " + __name + "\nAge: " + str(age)
File "C:\Users\Sephiroth\source\repos\Person2\Person2\Person2.py", line 25, in <module>
print(p)

Idleater

Sephiroth_dude wrote: »

Even when its greater than 18 it fails

Did you read the reason why it fails?

Message=name '_Person2__name' is not defined

Can you see in your code where something is trying to reference the

__name

variable?

If not, can you see anywhere in your code where you are trying to reference something that should be

__name

?

When you have fixed this, you have a similar issue with age.


The <18 check is working fine (or as programmed) for me when I have fixed the above errors and run with

p = Person2("Tim",18)
print(p)
p = Person2("Tom",17)
print(p)

I get:

Name: Tim
Age: 18
Traceback (most recent call last):
  File "/Users/me/Downloads/Person2.py", line 26, in <module>
    p = Person2("Tom",17)
  File "/Users/me/Downloads/Person2.py", line 5, in __init__
    self.set_age(age)
  File "/Users/me/Downloads/Person2.py", line 18, in set_age
    raise ValueError ("AGE INVALID")
ValueError: AGE INVALID
[Finished in 0.0s with exit code 1]

Neowise

class Person2:

    def __init__(self,name,age):
        self.set_name(name)
        self.set_age(age)

    def get_name(self):
        return self.__name

    def set_name(self,name):
        self.__name = name

    def get_age(self):
        return self.__age

    def set_age(self,value):
        if value < 18:
            raise ValueError ("AGE INVALID")
        self.__age = value

    def __str__(self):
        return "Name: " + self.__name + "\nAge: " + str(self.__age)

p = Person2("Tom",19)
print(p)

How about these mods?