How do I use dataclasses in Python?

How do I use dataclasses in Python?

Dataclasses in Python are a way to create classes that are primarily used to store data. You can define a dataclass using the @dataclass decorator.

Can you show me a simple example?

Sure! Here's a basic example:

from dataclasses import dataclass

@dataclass
class Person:
    name: str
    age: int

person1 = Person(name='Alice', age=30)
print(person1)

What are the benefits of using dataclasses?

Dataclasses automatically generate special methods like __init__, __repr__, and __eq__, which saves you time and reduces boilerplate code.

Can I add default values to the fields?

Yes, you can! Just assign a default value in the class definition, like this:

@dataclass
class Person:
    name: str
    age: int = 25  # Default age is 25