Python Dataclasses

What are dataclasses?

Dataclasses are a feature introduced in Python 3.7 that provides a way to simplify the creation of classes that are primarily used to store data.

It automatically generates special methods like __init__() based on the class attributes, reducing boilerplate code and making it easier to create classes that are primarily used for storing data.

Example

from dataclasses import dataclass
 
@dataclass
class Point:
    x: int
    y: int
 
point1 = Point(1, 2)
print(point1)  # Output: Point(x=1, y=2)

TIP

Use them as a lightweight/built-in alternative to libraries like Pydantic when you only need simple data structures.