Returns list of all prime numbers up to and including 'n' maximum bound

prime.py

def prime(n):
    sieve = [True for x in range(n+1)]
    primes = []
    for num in range(2, n+1):
        if sieve[num] == True:
            primes.append(num)
            for multiple in range(num, n+1, num):
                sieve[multiple] = False
    return primes

Genius