q must be exactly 160, 224, or 256 bits long

Raise code

def _check_dsa_parameters(parameters: DSAParameterNumbers) -> None:
    if parameters.p.bit_length() not in [1024, 2048, 3072, 4096]:
        raise ValueError(
            "p must be exactly 1024, 2048, 3072, or 4096 bits long"
        )
    if parameters.q.bit_length() not in [160, 224, 256]:
        raise ValueError("q must be exactly 160, 224, or 256 bits long")

    if not (1 < parameters.g < parameters.p):
        raise ValueError("g, p don't satisfy 1 < g < p.")


def _check_dsa_private_numbers(numbers: DSAPrivateNumbers) -> None:
    parameters = numbers.public_numbers.parameter_numbers