When Were List Comprehensions Added to Python?

List comprehensions, a shortcut for creating lists, have been in Python since version 2.0. Python 2.4 added a similar feature – generator expressions; then 2.7 (and 3.0) introduced set and dict comprehensions.

On what are Python's list comprehensions based?

List comprehension is an elegant way to define and create lists based on existing lists. List comprehension is generally more compact and faster than normal functions and loops for creating list.

What are comprehensions in Python?

Comprehensions in Python provide us with a short and concise way to construct new sequences (such as lists, set, dictionary etc.) using sequences which have been already defined.