proper use of list comprehensions - python

Question

Normally, list comprehensions are used to derive a new list from an existing list. Eg:

>>> a = [1, 2, 3, 4, 5]
>>> [i for i in a if i >          


        

Answer 1

From python documentation:

List comprehensions provide a concise way to create lists. Common applications are to make new lists

Perhaps you want to learn more about reduce(), filter() and map() functions.