python random number why isn't it same on all computers

One friend that I don't have any communication with anymore once told me the following:

Using that library(python's random) you can select a seed If you give it at seed it means the randomly generated number will always be the same No matter what computer you run it on

So I tried to test this, because this is what I need so it's the same on all computers and everytime someone calls this(this is important, as I am working on a blockchain NFT and trust is important here)

So I found this: https://machinelearningmastery.com/how-to-generate-random-numbers-in-python/

on that link, there's example:

from random import seed
from random import random
# seed random number generator
seed(1)
# generate some random numbers
print(random(), random(), random())
# reset the seed
seed(1)
# generate some random numbers
print(random(), random(), random())

running above in playground of python, I get

(0.417022004703, 0.720324493442, 0.000114374817345) (0.417022004703, 0.720324493442, 0.000114374817345)

But as you can see, on that website, the creator of that post got the following:

0.13436424411240122 0.8474337369372327 0.763774618976614 0.13436424411240122 0.8474337369372327 0.763774618976614

Why aren't they same on all computers then ? I am using the same seed. and how can I ensure that they will be the same ?