Advanced Python Guide by Kriti Kumari Sinha

Author:Kriti Kumari Sinha
Language: eng
Format: epub
ISBN: 9789355516756
Publisher: BPB Publications

Generators and iterators

Generators and iterators are fundamental concepts in Python for working with sequences of data. They allow you to loop through and manipulate data efficiently, especially when dealing with large datasets.

Iterators

An iterator is an object that represents a stream of data. In Python, an iterator must implement two methods: __iter__() and __next__():

__iter__(): Returns the iterator object itself. It is called at the start of the iteration.

__next__(): Returns the next value from the iterator. It raises a StopIteration exception when there are no more items to be returned.

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