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What is the function or tool that is used to create iterators?

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What is the function or tool that is used to create iterators?

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An iterator can be created from an iterable by using the function iter(). Thus, when we pass this tuple to an iter() function, we will get an iterator. Actually, this is possible because the class of an object has a method __iter__, which returns an iterator.
 
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In programming, the function or tool used to create iterators is called a generator.

A generator is a special type of function that can pause its execution and resume it later, allowing it to produce a sequence of values one at a time. It generates values on-the-fly, which makes it memory-efficient compared to storing all values in memory at once.

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