Editing Iterator (section)

==Stream==
{{further|Stream (computing)}}

Iterators are a useful abstraction of [[input stream]]s – they provide a potentially infinite iterable (but not necessarily indexable) object. Several languages, such as Perl and Python, implement streams as iterators. In Python, iterators are objects representing streams of data.<ref>{{cite web |url=https://docs.python.org/3.8/glossary.html#term-iterator |title=Glossary — Python 3.8.4 documentation|access-date=2020-07-15 }}</ref> Alternative implementations of stream include [[data-driven programming|data-driven]] languages, such as [[AWK]] and [[sed]].