[Tutor] 6 random numbers

[Steven D'Aprano]

ADRIAN KELLY wrote:
> hello all,
> anyone know how i would go about printing 6 random numbers, i know i could copy and paste 6 times (which would work) but i was thinking about a while loop, ie. while lottery_numbers.count is <7. 
> Is it possible to code this? is it possible to count random variables? i am trying to keep the program as simple as possible, cheers
> 
> any help would be welcome, 
> 
> import random
> lottery_numbers=random.randrange(1,42)
> print lottery_numbers

Whenever you want to do something repeatedly, a for-loop or while-loop 
is usually the answer. If you know how many times you need to do it, use 
a for-loop:

for i in range(6):
     print random.randrange(1,42)


If you don't know how many times, use a while-loop:

total = 0
while total < 100:
     total += random.randrange(1,42)
     print total


If you want to collect the intermediate results, either store them in a 
list:

results = []
for i in range(6):
     results.append(random.randrange(1,42))

or use a list comprehension, which is syntactic sugar for a for-loop:

results = [random.randrange(1,42) for i in range(6)]



-- 
Steven