Python Iterators | |||
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An iterator is an object that contains a countable number of values. An iterator is an object that can be iterated upon, meaning that you can traverse through all the values. Technically, in Python, an iterator is an object which implements the iterator protocol, which consist of the methods Iterator vs Iterable Lists, tuples, dictionaries, and sets are all iterable objects. They are iterable containers which you can get an iterator from. All these objects have a
Even strings are iterable objects, and can return an iterator:
Looping Through an Iterator We can also use a
The Create an Iterator To create an object/class as an iterator you have to implement the methods As you have learned in the Python Classes/Objects chapter, all classes have a function called The The
StopIteration The example above would continue forever if you had enough next() statements, or if it was used in a To prevent the iteration from going on forever, we can use the In the
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