RuleCheckAllKw Class

class kwhelp.decorator.RuleCheckAllKw(arg_info: Dict[str, Union[int, kwhelp.rules.IRule, Iterable[kwhelp.rules.IRule]]], rules: Optional[Iterable[Union[kwhelp.rules.IRule, Iterable[kwhelp.rules.IRule]]]] = None, **kwargs)[source]

Decorator that decorates methods that require specific args to match rules specificed in rules list.

If a function specific args do not match all matching rules in rules list then validation will fail.

See also

RuleCheckAllKw Usage

__init__(arg_info: Dict[str, Union[int, kwhelp.rules.IRule, Iterable[kwhelp.rules.IRule]]], rules: Optional[Iterable[Union[kwhelp.rules.IRule, Iterable[kwhelp.rules.IRule]]]] = None, **kwargs)[source]

Constructor

Parameters

  • arg_info (Dict[str, Union[int, IRule, Iterable[IRule]]]) – Dictionary of Key and int, IRule, or Iterable[IRule]. Each Key represents that name of an arg to check with one or more rules. If value is int then value is an index that corresponds to an item in rules.

  • rules (Iterable[Union[IRule, Iterable[IRule]]], optional) – List of rules for arg_info entries to match. Default None

Keyword Arguments

  • raise_error (bool, optional) –

    If True then an Exception will be raised if a validation fails. The kind of exception raised depends on the rule that is invalid. Typically a TypeError or a ValueError is raised.

    If False then an attribute will be set on decorated function named is_rules_kw_all_valid indicating if validation status. Default True.

  • ftype (DecFuncType, optional) – Type of function that decorator is applied on. Default DecFuncType.FUNCTION

  • opt_return (object, optional) – Return value when decorator is invalid. By default an error is rasied when validation fails. If opt_return is supplied then it will be return when validation fails and no error will be raised.

  • opt_logger (Union[Logger, LoggerAdapter], optional) – Logger that logs exceptions when validation fails.