from math import hypot
from random import expovariate
from itertools import permutations, starmap, repeat
from collections import Counter
def test(trials, n):
lambdas = [1.0E-3 ** exp for exp in range(n)]
for i in repeat(None, trials):
data = list(map(expovariate, lambdas))
assert len(set(starmap(hypot, permutations(data)))) == 1, data
test(trials = 1_000_000_000, n=5)
print('Done')