python - What is a good way to extend a list with a repeated number? -

i want extend list number 2450, 50 times. way this?

for e in range(0,50):     l2.extend(2450) 

this add 2450, 50 times. l2.extend([2450]*50)

example:

>>> l2 = [] >>> l2.extend([2450]*10) >>> l2 [2450, 2450, 2450, 2450, 2450, 2450, 2450, 2450, 2450, 2450] 

or better yet:

>>> itertools import repeat >>> l2 = [] >>> l2.extend(repeat(2450,10)) >>> l2 [2450, 2450, 2450, 2450, 2450, 2450, 2450, 2450, 2450, 2450]