What this snippet does
Generators are single-use iterables; once exhausted, they yield no more items and must be recreated.
Expected output
[0, 1] []
Why practise typing this
Typing functions 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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