What this snippet does
Final is ignored at runtime; variables can still be reassigned, but type checkers will flag it.
Expected output
10
Why practise typing this
Typing typing (final & literal) 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
- Final VariablesTyping (Final & Literal) · advanced
- Final MethodsTyping (Final & Literal) · advanced
- Dynamic TypingVariables & Types · beginner
- Flexible DataVariables & Types · beginner
- Type MutationVariables & Types · beginner
- Type HintsVariables & Types · beginner