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

In the example you give it would make the most sense to do:

b = [i for i in a]

if for some reason you wanted to create b. In general, there is some common sense that must be employed. If using a comprehension makes your code unreadable, don't use it. Otherwise go for it.