Combining Lists in python with common elements -

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i generating lists '1' , '0' in them:

list_1 = [1,0,0,1,0,0] list_2 = [1,0,1,0,1,0]

i trying combine them if '1' appears in either list, appears in new list, , replaces '0'

new_list = [1,0,1,1,1,0]

what code be?

use bitwise or | on list comprehension , using zip function:

>>> [x | y x,y in zip(list_1, list_2)] [1, 0, 1, 1, 1, 0]

if lists don't have same length, use zip_longest itertools module:

>>> l1 = [1,1,1,0,0,1] >>> l2 = [1,0,1,1,1,0,0,0,1] >>>  >>> [x | y x,y in zip_longest(l1, l2, fillvalue=0)] [1, 1, 1, 1, 1, 1, 0, 0, 1]

another way, use starmap , remember in python3, yields generator have convert list after that, way:

>>> itertools import starmap >>> operator import or_ #bitwise or function passed starmap >>> list(starmap(or_, zip_longest(l1,l2, fillvalue=0))) [1, 1, 1, 1, 1, 1, 0, 0, 1]

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