~/Blog

Brandon Rozek

Photo of Brandon Rozek

PhD Student @ RPI, Writer of Tidbits, and Linux Enthusiast

Quick Python: Dataclasses

Published on

Updated on

Warning: This post has not been modified for over 2 years. For technical posts, make sure that it is still relevant.

Python 3.7 and above have a feature called dataclasses. This allows us to reduce boilerplate code by removing the need to create a whole constructor and providing a sensible __repr__ function.

from dataclasses import dataclass

@dataclass
class Person:
    name: str
    age: int = 0

Usage:

p = Person("Bob", 30)
print(p)
Person(name='Bob', age=20)

To make an attribute have a default value, add it after the type declaration like I have with age.


Have any questions or want to chat: Reply via Email

Enjoyed this post?

Published a response to this? :