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## 2.3.4 Demes
import random
from deap import base
from deap import creator
from deap import tools
creator.create("FitnessMin", base.Fitness, weights=(-1.0,))
creator.create("Individual", list, fitness=creator.FitnessMin)
IND_SIZE=10
toolbox = base.Toolbox()
toolbox.register("indices", random.sample, range(IND_SIZE), IND_SIZE)
toolbox.register("individual", tools.initIterate, creator.Individual,
toolbox.indices)
toolbox.register("deme", tools.initRepeat, list, toolbox.individual)
DEME_SIZES = 10, 50, 100
population = [toolbox.deme(n=i) for i in DEME_SIZES]
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