def calc_slower(max_n):
    """ scenario I - displaying relation and validate results """
    print("\n[%s]" % (sys._getframe().f_code.co_name))
    print("seeking primes between (0..%d) ..." % (max_n))
    primes1 = create_primes_1(max_n)
    primes2 = create_primes_2(max_n)
    primes3 = create_primes_3(max_n)
    primes4 = create_primes_4(max_n)
    primes5 = create_primes_5(max_n)
    primes6 = create_primes_6(max_n)

    assert primes1 == primes2 == primes3 == primes4 == primes5 == primes6
    print("done - %d primes found." % (len(primes4)))
 scenario I - displaying relation and validate results 
recipes/Python/577329_Some_prime_generation_algorithms/recipe-577329.py