python itertools: How to roll N dice?

Question

I can iterate through all combinations of 1, 2, or 3 6-sided dice with loops like these:

for a in range(1, 7):  # one die
  sum = a
  dosomething(sum)

for a in range(1, 7):  # two dice
  for b in range(1, 7):
    sum = a + b
    dosomething(sum)

for a in range(1, 7):    # three dice
  for b in range(1, 7):
    for c in range(1, 7):
      sum = a + b + c
      dosomething(sum)

How can I do this for N dice using itertools?

Answer 1

This is what itertools.product is for.

for dice in itertools.product(range(1, 7), repeat=N):
    dosomething(sum(dice))