function from N to X

fun_n_x.py

>>> x = len("ABCDEF") # x= 6,
>>> n=3

>>> for i in product("ABCDEF", repeat=n):
...     print(i)
('A', 'A', 'A')
 ...
('F', 'F', 'F')

>>> len( [i for i in product("ABCDEF", repeat=n)] ) == x**n
True
 def sample_function(n=0, s=set() ):
    f = {i:random.choose(s) for i in range(0,n)}
    def _function(x):
        return f[x]
     return _function