What this snippet does
Lists are mutable; assigning a list to a new variable creates a second reference to the same object.
Expected output
[1, 2, 3, 4]
Why practise typing this
Typing variables & types 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
- Dynamic TypingVariables & Types · beginner
- Flexible DataVariables & Types · beginner
- Type MutationVariables & Types · beginner
- Type HintsVariables & Types · beginner
- Function SignaturesVariables & Types · beginner
- Ignored HintsVariables & Types · beginner