Python

Frozen Dataclass in Python

PythonObject-Oriented ProgrammingDataclassesintermediate

What this snippet does

Making a dataclass frozen creates immutable instances, useful for configuration and hashable types.

Expected output

Config(env='prod')

Why practise typing this

Typing object-oriented programming 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.

More Python practice

Browse all Python snippets →