What this snippet does
Assigning to a variable inside a function makes it local to the entire function, causing errors if accessed before assignment.
Expected output
Caught
Why practise typing this
Typing performance & 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.
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