Random Python dictionary key, weighted by values

Question

I have a dictionary where each key has a list of variable length, eg:

d = {
 \'a\': [1, 3, 2],
 \'b\': [6],
 \'c\': [0, 0]
}

Is there a cle

Answer 1

I'd say this:

random.choice("".join([k * len(d[k]) for k in d]))

This makes it clear that each k in d gets as many chances as the length of its value. Of course, it is relying on dictionary keys of length 1 that are characters....

---

Much later:

table = "".join([key * len(value) for key, value in d.iteritems()])
random.choice(table)