def save_stats(stats):
gen = Generation()
gen.generation = stats['generation']
gen.population = stats['population']
gen.mean_fitness = stats['mean fitness']
gen.total_fitness = stats['total fitness']
gen.most_fit_genome = stats['mostfit tags']
gen.most_fit_post_fitness = stats['mostfit fitness']
gen.most_fit_post_url = stats['mostfit url']
gen.least_fit_genome = stats['leastfit tags']
gen.least_fit_post_fitness = stats['leastfit fitness']
gen.least_fit_post_url = stats['leastfit url']
gen.unique_alleles = stats['unique alleles']
gen.n_unique_alleles = stats['n unique alleles']
gen.contributors = stats['contributors']
db.put(gen)
