import nah

@nah.meh
def check_age(age):
    if age < 18:
        raise UnderAgeException

check_age(17)  # returns None

import nah

@nah.gimme(0)
def divide_by(n):
    return 100 / n

divide_by(0) # returns 0 instead of raising ZeroDivisionError

@nah.again(3)
def connect_db(config):
    return DbConnection.connect(config)

def alternative_func(a, b):
    return safe_divide(a, b)

@nah.maybe(alternative_func)
def my_func(a, b):
    return a / b

@nah.meh(when=ValueError) # filter ignored exception
@nah.meh(when=(ValueError, KeyError))
@nah.gimme(when=ValueError)
@nah.gimme(when=(ValueError, KeyError))
@nah.again(3, when=ValueError)
@nah.again(3, when=(ValueError, KeyError))
@nah.again(3, backoff=2.0) # back-off for 2 seconds
@nah.maybe(alternative_fn) # delegate the call to function `alternative_fn`
@nah.maybe(alternative_fn, when=ValueError)
@nah.maybe(alternative_fn, when=(ValueError, KeyError))
def my_func():
    ...