What are data classes in Python?

What are data classes in Python?

Data classes in Python are a way to create classes that are primarily used to store data with minimal boilerplate code.

How do I create a data class?

You can create a data class using the @dataclass decorator from the dataclasses module. Here's a simple example:

from dataclasses import dataclass

@dataclass
class Person:
    name: str
    age: int

This automatically generates methods like __init__, __repr__, and __eq__.

What are the benefits of using data classes?

The benefits include reduced boilerplate code, automatic generation of special methods, and improved readability.

Can I add default values to data class fields?

Yes, you can add default values by assigning them directly in the class definition, like this:

@dataclass
class Person:
    name: str
    age: int = 30