Python

Frozen Mutate in Python

PythonDataclasses (Advanced)Post Initadvanced

What this snippet does

In a frozen dataclass, standard assignment fails in __post_init__; use object.__setattr__ to bypass.

Expected output

10

Why practise typing this

Typing dataclasses (advanced) code builds muscle memory for the symbols and indentation Python uses most, which prose-based typing tests never cover. DevType measures your words per minute and accuracy on this snippet and tracks the individual characters you mistype, so later lessons can target them.

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