List comprehensions are used for creating new lists from other iterables like tuples, strings, arrays, lists, etc. A list comprehension consists of brackets containing the expression, which is executed for each element along with the for loop to iterate over each element.

Does list comprehension exist in Python?

To help you create a list based on the transformation of elements of an existing list, Python provides a feature called list comprehensions. A list comprehension consists of the following parts: An input list ( numbers )

Are list comprehensions lazy Python?

There's no lazy evaluation of lists in Python. List comprehensions simply create a new list. If you want "lazy" evaluation, use a generator expression instead. Note that generators differ from lists in several important ways.