Idiomatic list of all natural numbers

I am trying to create a generator that will return the natural numbers in order. This is used to enumerate another generator which will exit upon StopIteration, which seems like the easiest way to do it. However, I cannot find an idiomatic way of creating this generator:

def numbers():
    i = 0
    while True:
        yield i
        i += 1

q = Queue.Queue()
for i in numbers():
    try:
        q.put((i, my_generator.next()))
    except StopIteration:
        break

This does work, but it seems unpythonic to use a while True: in this way.

Is there a standard library function to iterate over the natural numbers?

via Chebli Mohamed