Performance Advantages to Iterators?

Question

What (if any) performance advantages are offered by using iterators. It seems like the \'Right Way\' to solve many problems, but does it create faster/more memory-conscious

Answer 1

Iterators are just classes that implement a particular interface, specifically an interface for going to the next one. In Python, lists, tuples, dicts, strings, and files all implement this interface. If they are implemented poorly, it may result in poor performance, but there is nothing inherent to the interface that implies good or bad performance.