What are the best practices for using data classes in Python?

What are the best practices for using data classes in Python?

Data classes in Python are a great way to create classes that are primarily used to store data. Best practices include using type annotations, setting default values for fields, and using the frozen=True parameter for immutability.

Can you give me an example of a data class?

Sure! Here's a simple example:

from dataclasses import dataclass

@dataclass
class Person:
    name: str
    age: int
    email: str = ''  # default value

What are the advantages of using data classes over regular classes?

Data classes automatically generate special methods like __init__, __repr__, and __eq__, which reduces boilerplate code and makes your classes easier to read and maintain.

Are there any limitations to using data classes?

Yes, data classes are best suited for simple data structures. They may not be ideal for complex classes that require extensive behavior or inheritance.