Get a list from a set in python

Question

Ho do I get the contents of a set() in list[] form in Python?

I need to do this because I need to save the collection in Google App Engine

Answer 1

>>> a = [1, 2, 3, 4, 2, 3]
>>> b = set(a)
>>> b
set([1, 2, 3, 4])
>>> c = list(b)
>>> c
[1, 2, 3, 4]
>>>