The generator looks similar to a function on paper, but has a few qualities that make it stand out, and ultimately more useful to a programmer in certain scenarios. A generator does not return, rather yields, its data one piece at a time. When the generator is called again, it resumes from the yield statement to yield the next piece of data of object. This means generators are the perfect way to get a large amount of data in a fast and memory-efficient manner, especially when working with an infinite set.
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