A simple calculation benchmark

bench.py

def short_calcul(n):
    result = 0
    for i in range(1, n+1):
        result += i
    return result


def long_calcul(num):
    result = 0
    for i in range(num):
        result += short_calcul(i) - short_calcul(i)
    return result

for _ in range(20):
    long_calcul(1000)