Example population and chromosome generation for http://bitsmakemecrazy.com/gen_8Q.html#gen_8Q

example_population.py

def generateChromosome():
	# randomly generates a sequence of board states.
	global nQueens
	init_distribution = np.arange(nQueens)
	np.random.shuffle(init_distribution)
	return init_distribution

def generatePopulation(population_size = 100):
	global POPULATION

	POPULATION = population_size

	population = [BoardPosition() for i in range(population_size)]
	for i in range(population_size):
		population[i].setSequence(generateChromosome())
		population[i].setFitness(fitness(population[i].sequence))

	return population