MiquelIR

from itertools import product, combinations
array = dict.fromkeys([0,1,2,3,4,5,6,7], 0)
stuff = [1,3,7]
for L in range(0, len(stuff)+1):
    for subset in combinations(stuff, L):
        subarray = array.copy()
        value = ''
        for x in subset:
            subarray[x] = 1
        for y in sorted(subarray.keys(), reverse=True):