image - Save list in Python -

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i want save list of strings in python array. code below:

import os images_list=[os.listdir("/home/metal-machine/pictures/new")] print images_list[0]

it prints list in [0] , when use 

print images_list[1]

it returns error as: indexerror: list index out of range

i sure "index out of range" because elements of list not separated comma.

for can use split() method in python. 

images_list.split()

and above command splits files putting commas in-between of them, why python by-default not put commas in between elements? sunch kind of list valid in python?

why not write code bit more error free

for images in images_list:     print images

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