The "homework" from the presentation "Function in Python" - http://ilian.i-n-i.org/functions-in-python-presentation/

Functions in Python - homework.py

# Problem 1
def f(*args, **kwargs):
    return sum(list(args) + kwargs.values())

# Sample run
# f()
# f(1, 2, 3)
# f(a=1, c=3, b=2)
# f(1, b=2, c=3)


# Problem 2
import random

def dice():
    i = 0
    while True:
        yield random.randint(1, 6)
        i += 1
        if i==10:
            break
    print 'Dice brokes, you can\'t use it any more'

# Sample run 1
#[x for x in dice()]

# Sample run 2
#d = dice()
#d.next(); d.next(); d.next(); d.next(); d.next(); d.next(); d.next(); d.next(); #d.next(); d.next(); d.next(); 


# Problem 3
import string

class decorator(object):
    def __init__(self, func):
        self.func = func
    def __call__(self, *args, **kwargs):
        def convertor(a):
            return ord(string.lower(a)) - 97 if str(a) in string.letters else a
        args = [convertor(a) for a in args]
        kwargs = {key:convertor(kwargs[key]) for key in kwargs}
        return self.func(*args, **kwargs)            


@decorator
def f(*args, **kwargs):
    return sum(list(args) + kwargs.values())


# Sample run
# f(1, 'b', 'c', **{'a': 1, 'b': 'b', 'C': 'c'})