def swap_mutation()

in src/genetic_algorithm.py [0:0]

• 4 lines of code
• 1 McCabe index (conditional complexity)

def swap_mutation(candidate):
    indexes = range(len(candidate.path))
    pos1, pos2 = random.sample(indexes, 2)
    candidate.path[pos1], candidate.path[pos2] = candidate.path[pos2], candidate.path[pos1]