savish

import os


def mock(mock_func):
    def decorate_inner(func):
        # Feel free to use functools wraps to preserve introspection info
        def inner(*args, **kwargs):
            if os.environ.get("ENV") == "test":
                return mock_func(*args, **kwargs)
            else:

savish

defmodule Roman do

  @values [i: 1, v: 5, x: 10, l: 50, c: 100, d: 500, m: 1000]
  @valid_transitions %{
    m: [:c, :d, :l, :x, :v, :i],
    d: [:c, :l, :x, :v, :i],
    c: [:m, :d, :c, :l, :x, :v, :i],
    l: [:x, :v, :i],
    x: [:c, :l, :x, :v, :i],
    v: [:i],

savish

vals = [1,2,3]

def afunc(v1, v2):
    return v1 * v2

for k in vals:
    for j in vals:
        print(afunc(k, j))

# Result