How to make attribute in dataclass read-only?

How can I make an attribute in a dataclass read-only, and what are the methods to ensure immutability in Python classes?

To make an attribute in a dataclass read-only and ensure immutability in Python classes, you can follow these steps:

Use field with init=False: Create a dataclass attribute with field(init=False) to prevent it from being set during initialization. This makes the attribute effectively read-only.

Use property: Define the attribute as a property with only a getter method, ensuring that it cannot be modified after the object is created.

Set frozen=True: Use the frozen=True parameter when defining the dataclass to make all attributes read-only. This will prevent any modification to the attributes after initialization.

By following these methods, you can create immutable dataclass attributes and ensure the integrity of your data.