What this snippet does
Subclasses must also define __slots__ to prevent the creation of __dict__ and retain memory benefits.
Expected output
1 2
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
- Lightweight DataMemory & Optimization · advanced
- Slots DictMemory & Optimization · advanced
- Dynamic TypingVariables & Types · beginner
- Flexible DataVariables & Types · beginner
- Type MutationVariables & Types · beginner
- Type HintsVariables & Types · beginner