Choice.py

# coding: utf-8
# http://hanepjiv.blogspot.jp/2014/11/python-indentchoice.html

from functools import wraps

# ================================================
def choice(a_Func):
    # --------------------------------------------------------------------------
    def loop(*args):
        if len(args) is 0:
            return []
        if len(args[1:]) is 0:
            return [[i] for i in args[0]]
        return [[i] + j for i in args[0] for j in loop(*args[1:])]
    # --------------------------------------------------------------------------
    @wraps(a_Func)
    def wrapper(*args):
        return [i for i in map((lambda args: a_Func(*args)), loop(*args))]
    return wrapper

@choice
def hoge(*args):
    return tuple(args)

print(hoge((0,), (1,2), (3,4,5), (6,7,8,9)))

@choice
def fuga(*args):
    return sum(args)

print(fuga((0,), (1,2), (3,4,5), (6,7,8,9)))