python - What is the advantage of a list comprehension over a for loop? -

what advantage of using list comprehension on for loop in python?

is make more humanly readable, or there other reasons use list comprehension instead of loop?

list comprehensions more compact and faster explicit for loop building list:

def slower():     result = []     elem in some_iterable:         result.append(elem)     return result  def faster():     return [elem elem in some_iterable] 

this because calling .append() on list causes list object grow (in chunks) make space new elements individually, while list comprehension gathers elements first before creating list fit elements in 1 go:

>>> some_iterable = range(1000) >>> import timeit >>> timeit.timeit('f()', 'from __main__ import slower f', number=10000) 1.4456570148468018 >>> timeit.timeit('f()', 'from __main__ import faster f', number=10000) 0.49323201179504395