Quick and dirty permutations script

jados_itertools.py

from itertools import permutations

def get_combinations(layer):
    possibles = (-layer, -layer + 1, 0, layer - 1, layer)
    combinations = permutations(possibles, 2)
    return_combinations = []
    for combination in combinations:
        if layer in combination or -layer in combination:
            return_combinations.append(combination)
    return return_combinations