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Python Performance: Why 'if not list' is 2x Faster Than Using len()
(blog.codingconfessions.com)
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this post was submitted on 12 Apr 2025
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thing: Sequence[Any]iirc is iterable, indexable, and reversible.thing: Iterable[Any]only guarantees that its iterable - and note that iterating can sometimes have the effect of consuming the iterable (e.g. when working with streaming interfaces)