Poker? Poke 'er!

Having mostly completed CS 101 (Introduction to Computer Science, aka Build a Search Engine), which was awesome, I just need to wait for a final exam to come out.

So I have moved on to looking at CS 212 (Design of Computer Programs), which has so far focussed on a program to judge winning poker hands, with an added bonus of a procedure to deal the hands. And here I hit a problem, because that procedure is:

def deal(numhands, n = 5, deck = [r+s for r in '23456789TJQKA' for s in 'SHDC']):

"Shuffle the deck and deal out numhands n-card hands"

random.shuffle(deck)

return [deck[n*i:n*(i+1)] for i in range(numhands)]

Just to explain what's going on here:
First it defines (def) a function called 'deal'. Deal can take as inputs the number of hands to deal (numhands), the number of cards per hand (n), and the definition of the pack of cards (where r is the card values, and s is the suits).
Then there's a bit of a description of the function, before shuffling the pack randomly.
Finally the idea is to return an output where:
we get a number of hands (numhands), each containing n cards, by counting out the first n cards, then the next n cards, until the hands are complete.

This is okay for a whole bunch of card games; in fact, considering poker it would work for Five-card Stud, which may be what was intended. But what I've always played is Texas Hold'Em, which has a different structure.
For anyone who hasn't had the pleasure of playing Hold'Em, the basic structure is that each player receives two cards in their own hand, and there are then five cards dealt face up on the table. Each player makes their best hand of five.

So I've tried to put together a function to do that job:

def deal(numhands, n=2, face=5, deck=[r+s for r in '23456789TJQKA' for s in 'SHDC']):

    random.shuffle(deck)

    hands_out = deck[0:face] + deck[(n*i+face):(n*(i+1)+face)] for i in range(numhands)]

    return hands_out

which unfortunately...doesn't work.
I believe the logic is sound; I'm just getting some part of the syntax wrong. I'll come back to it; once this works, I will also have to make an additional function to work out the best hand of five cards from the seven available to each player, and the rest of the code should then follow.