iterator vs iterable in python
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in python, iterators and iterables are fundamental concepts that play a crucial role in creating efficient and readable code. understanding the difference between them is essential for writing pythonic and effective programs. this tutorial aims to clarify the distinctions between iterators and iterables and provide practical examples to illustrate their usage.
an iterable is an object capable of returning its elements one at a time. examples of built-in iterables in python include lists, tuples, strings, and dictionaries. iterables can be traversed using a loop, making it easy to access each element sequentially.
an iterator is an object that represents a stream of data. it implements two essential methods: __iter__() and __next__(). the __iter__() method returns the iterator object itself, and the __next__() method retrieves the next element from the iterator. once there are no more elements to return, the __next__() method should raise the stopiteration exception.
iterable:
iterator:
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