mymodule2.py

def summation(a,b):
    total = 0
    for n in range(a,b+1):
        total += n
    return total

primes = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47]

print('Testing function summation():...', end='')
total = summation(1,100)
if (total == 5050):
    print('OK')
else:
    print('FAILED')