Understand list comprehension and draw

[PUP280]

Thank you for your patience and this lot of informations.

I discover this possibility :

things = []
for x in range(0, 7):
    for y in range(x+1, 8):
        for z in range(y+1, 9):
            things.append((x, y, z))

Can you explain how this code works ?
I’ve tested it, am I right if I deduce it means that y is always superior to x and grows up while y < 8 ? (because y stopped at 7 and x at 6)

It looks like you've done that above with your my_example code. Can you run it and see how you want it to be different?

I am sorry, you are right. And I need to be more businesslike too.

If I took again my example :

[(x,y,z) for x in range(6) for y in range(7) for z in range(8)]

Let’s look all the draws with the numbers 1, 2 and 3 inside, six possibilities listed in the output :

Output:
(1, 2, 3)
(1, 3, 2)
(2, 1, 3)
(2, 3, 1)
(3, 1, 2)
(3, 2, 1)

What can I do if I want python considers that these six possibilities are equals and gives me only one time the (1,2,3) possibility in output ?

In other words, instead of give me six possibilities with the same digits, Python would give me only one result considering (1,2,3) is the same thing that (2,3,1) that (3,2,1) that…