Cutting a deck of cards

[Roy Smith]

In article <4d02f46f-8264-41bf-a254-d1c20469626e at googlegroups.com>,
 RVic <rvince99 at gmail.com> wrote:

> Suppose I have a deck of cards, and I shuffle them
> 
> import random
> cards = []
> decks = 6
> cards = list(range(13 * 4 * decks))
> random.shuffle(cards)
> 
> So now I have an array of cards. I would like to cut these cards at some 
> random point (between 1 and 13 * 4 * decks - 1, moving the lower half of that 
> to the top half of the cards array.
> 
> For some reason, I can't see how this can be done (I know that it must be a 
> simple line or two in Python, but I am really stuck here). Anyone have any 
> direction they can give me on this? Thanks, RVic, python newbie

import random
i = random.randrange(len(cards))
cut1 = cards[:i]
cut2 = cards[i:]

I haven't thought too much about the boundary conditions, but that's the 
general idea.