Abstract base class can force implementation of a method by all it's child classes using @abstractmethod decorator. Can the same be done with class fields?
Say we have the following classes:
from abc import ABCMeta, abstractmethod
class AbsHero(metaclass=ABCMeta):
@abstractmethod
def say_hello():
"""Hero greeting"""
class GoodHero(AbsHero):
def __init__(name: str):
self.name = name
def say_hello():
print('Hi, my name is ' + self.name + '.')
class SneakyHero(AbsHero):
def say_hello():
print("I am sneaky, I don't have a name")
I want to enforce all children of AbsHero to have name field, or at least property. Right now both child classes are valid. What can I do, to make GoodHero class to work well, but SneakyHero declaration to cause failure?