@dataclass decorator

In Python you can use the @dataclass decorator to simplify the creation of classes that are primariliy used to store data. It automatically generates methods like __init__ (initialisation), __repr__ (string representation), __eq__ (equality).

It allows you to write a class like this:

from dataclasses import dataclass

@dataclass
class User:
	name: str
	age: int
	email: str

You can also add more advanced options like immutability:

@dataclass(frozen=True)
class Point:
	x: int
	y: int

It also allows you to add default values:

@dataclass
class User:
	name: str
	age: int
	email: str = "some-test-email@example.com"