What is iterator??? (Python)

In this video we will learn how to define and work with iterator objects in python.

Points covered in this tutorial is following:
1. An iterator is an object that contains a countable number of values
2. In Python an Iterator is an object which implements the iterator protocol,
It consist of the methods __iter__() and __next__()

The for loop actually creates an iterator object and executes the next() method for each loop.

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