Python iterator objects are required to support two methods while following the iterator protocol. __iter__ returns the iterator object itself. This is used in for and in statements. __next__ method ...

Any construct which deals with iterators will be prepared for this, like the for loop in our example. When this is run, it correctly stops at the appropriate point. $ python iterator_test.py 463 ...

Iterators are objects that can be iterated upon. In this tutorial, you will learn how iterator works and how you can build your own iterator using __iter__ and __next__ methods. What are iterators in ...