mutation.py

import random

def mutateWord(word):
	index_modification = int(random.random() * len(word))
	if (index_modification == 0):
		word = chr(97 + int(26 * random.random())) + word[1:]
	else:
		word = word[:index_modification] + chr(97 + int(26 * random.random())) + word[index_modification+1:]
	return word
	
def mutatePopulation(population, chance_of_mutation):
	for i in range(len(population)):
		if random.random() * 100 < chance_of_mutation:
			population[i] = mutateWord(population[i])
	return population