Section 8.14. Related Modules

8.14. Related Modules

Iterators were introduced in Python 2.2, and the itertools module was added in the next release (2.3) to aid developers who had discovered how useful iterators were but wanted some helper tools to aid in their development. The interesting thing is that if you read the documentation for the various utilities in itertools, you will discover generators. So there is a relationship between iterators and generators. You can read more about this relationship in Chapter 11, "Functions".