def check_conf_percentage_validity(conf_percentage):
    """
    Ensures that `conf_percentage` is in (0, 100). Raises a helpful ValueError
    if otherwise.
    """
    msg = "conf_percentage MUST be a number between 0.0 and 100."
    condition_1 = isinstance(conf_percentage, Number)
    if not condition_1:
        raise ValueError(msg)
    else:
        condition_2 = 0 < conf_percentage < 100
        if not condition_2:
            raise ValueError(msg)
    return None
def check_conf_percentage_validity ( conf_percentage ) : msg = "conf_percentage MUST be a number between 0.0 and 100." condition_1 = isinstance ( conf_percentage , Number ) if not condition_1 : raise ValueError ( msg ) else : condition_2 = 0 < conf_percentage < 100 if not condition_2 : raise ValueError ( msg ) return None
Ensures that `conf_percentage` is in (0, 100). Raises a helpful ValueError
    if otherwise.