def _validate_datetime(cls, value):
        """
        validate datetime value
        :param value: datetime value
        :return: None or validators.Invalid or MlbAmException
        """
        datetime_check = validators.Int()
        datetime_check.to_python(value)
        if len(value) != 8:
            raise MlbAmBadParameter("Length Error:{value}({length})".format(value=value, length=len(value)))
def _validate_datetime ( cls , value ) : datetime_check = validators . Int ( ) datetime_check . to_python ( value ) if len ( value ) != 8 : raise MlbAmBadParameter ( "Length Error:{value}({length})" . format ( value = value , length = len ( value ) ) )
validate datetime value
        :param value: datetime value
        :return: None or validators.Invalid or MlbAmException