Use default values for attributes in child class in Python

Question

I have a Person class in Python

class Person:
    def __init__(self, name='Sam', phone=456):
        self.name = name
        self.phone = phone

and a teenager class which inherits from Person :

class Teenager(Person):
        def __init__(self, name, phone,website):
            super().__init__(name, phone)
            self.website = website

Is there a way to instantiate a Teenager object using default values from Person class for name and phone without declaring them again in Teenarger class ?

When I try :

teen = Teenager(website='www.example.com')

I got this error :

TypeError: __init__() missing 2 required positional arguments: 'name' and 'phone'

Inheritance aside, you can't have a non-default argument (website) follow default arguments (name and phone), so you can't have Teenager's args be name, phone, website if you want name and phone to be optional. — Samwise
– Samwise, Commented Apr 11, 2022 at 17:06

kosciej16 · Accepted Answer · 2022-04-11 16:57:22Z

3

class Teenager(Person):
        def __init__(self, website, **kwargs):
            super().__init__(**kwargs)
            self.website = website

teen = Teenager(website='www.example.com')
# or just
teen = Teenager('www.example.com')

answered Apr 11, 2022 at 16:57

kosciej16

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