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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def factorize(number):
 """ Get the prime factors of an integer except for 1. Parameters number : int Returns ------- primes : iterable Examples -------- [-1, 17] [2, 2, 2] [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3] [1] """

    if not isinstance(number, int):
        raise ValueError('integer expected, but type(number)={}'
                         .format(type(number)))
    if number < 0:
        return [-1] + factorize(number * (-1))
    elif number == 0:
        raise ValueError('All primes are prime factors of 0.')
    else:
        for i in range(2, int(math_stl.ceil(number**0.5)) + 1):
            if number % i == 0:
                if i == number:
                    return [i]
                else:
                    return [i] + factorize(int(number / i))
        return [number]