What are the advanced features of data class usage in Python?

What are the advanced features of data class usage in Python?

Data classes in Python offer features like default values, factory functions, and immutability. Would you like to know more about any specific feature?

Can you explain how to use default values in data classes?

Sure! You can set default values for fields in a data class by assigning them directly in the class definition. For example, age: int = 30 sets a default age of 30.

What about using factory functions for default values?

You can use field(default_factory=...) to set a default value using a factory function. This is useful for mutable types like lists or dictionaries.

Are there any performance considerations when using data classes?

Yes, data classes are generally efficient, but if you have many fields or complex types, it might impact performance. It's best to profile your code.