Q32: What benefits does the @dataclass decorator offer?
Introduced in Python 3.7, @dataclass generates boilerplate special methods (__init__(), __repr__(), __eq__(), __hash__()) automatically based on type annotations. Passing frozen=True enforces immutability.
Key Takeaways
- Auto-generates
__init__,__repr__, and__eq__methods based on type hints. frozen=Trueproduces immutable, hashable instances.
Knowledge Check
How do you make a @dataclass instance immutable and hashable?