If `thing` already supports iteration, then yes, but sometimes you need to build... | Hacker News

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		sgarland 10 months ago \| parent \| context \| favorite \| on: Advanced Python Features If `thing` already supports iteration, then yes, but sometimes you need to build your own [0]. [0]: https://docs.python.org/3/library/functions.html#iter

maleldil 10 months ago [–]

Parent's example had a direct `iter(thing)`. Even if you had to use `iter(thing, sentinel)`, you'd still use `for val in iter(thing, sentinel)`, not while.

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