RNG; One variable must not be equal to another

[DavidRobinsons]

I am still studying about importing modules, and suddenly I came with an idea of a random number generator which will generate a six-number combination out of numbers within a specified range. I am going to insert a specific portion of my codes

from random import *

die1 = randint(1,42)
die2 = randint(1,42) 
die3 = randint(1,42)
die4 = randint(1,42)
die5 = randint(1,42)
die6 = randint(1,42)

print("For 6/42: ", die1, "-", die2, "-", die3, "-", die4, "-", die5, "-", die6)

I want to make the resulting numbers non-repeating, which means if die1 picked 5, the other variables must not pick 5. That goes for the other variables as well. How will I make it? The book I am using as reference haven't mentioned how to do so.