What are dataclasses and when do you use them?
Model answer
The @dataclass decorator generates __init__, __repr__ and __eq__ from annotated fields, so simple data-holding classes need very little code. Options include frozen=True for immutability and field(default_factory=list) for mutable defaults. For validation of external data consider a library like Pydantic.
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Dictionaries, Tuples and Sets in Python in the course Python for Beginners: Learn to Code with Real Projects.
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