Usage

Simply decorate your function with @ruled() and put rules as type hints. Any time one of them gets violated a RuleViolationException will be thrown.

Examples

# basic pep484 type checking
@ruled()
def f(x : int):
    pass

# type check, length check and combination
@ruled()
def g(x : str, y : LenRule(3, "=="), z : (str, LenRule(3, "=="))):
    pass