Every other in Python

I was doing a bit of Python at work and need to filter an array, all the values at the odd indexes into one array, all the one at the even indices into the other array. What I came up with is this:

class everyother:
    """Helper class for picking out
       every other item when filtering
       an array."""
    def __init__(self, start):
        self.start = start

    def next(self, a):
        self.start = not self.start
        return self.start

Now I can use this to filter arrays.

>>> v = map(hex, range(20))
>>> v
['0x0', '0x1', '0x2', ..., '0x13']
>>> evens = filter(everyother(0).next, v)
>>> evens
['0x1', '0x3', '0x5', '0x7', '0x9', '0xb', '0xd', '0xf', '0x11', '0x13']

Cool, but I can't help wonder if there's a better way to do this in Python.

Updated: I forgot about list comprehensions. Sam offered this one-liner:

>>> odds = [v[i] for i in range(1, len(v), 2)]
>>> evens = [v[i] for i in range(0, len(v), 2)]

Woot!