What this snippet does
Memoryviews can mutate array or bytearray buffers directly, offering C-like pointer performance.
Expected output
array('i', [99, 2, 3, 4])Why practise typing this
Typing strings & bytes 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.
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