:term:`Generator`\s are a simple and powerful tool for creating iterators. They

are written like regular functions but use the :keyword:`yield` statement

whenever they want to return data. Each time :func:`next` is called on it, the

statement was last executed). An example shows that generators can be trivially

easy to create::

iterators as described in the previous section. What makes generators so

compact is that the :meth:`__iter__` and :meth:`~generator.__next__` methods

are created automatically.