What this snippet does
If a parent class lacks __slots__, the subclass still gets a __dict__, negating the restriction.
Expected output
10
Why practise typing this
Typing memory & optimization 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
- Slots InheritanceMemory & Optimization · advanced
- Lightweight DataMemory & Optimization · advanced
- Dynamic TypingVariables & Types · beginner
- Flexible DataVariables & Types · beginner
- Type MutationVariables & Types · beginner
- Type HintsVariables & Types · beginner