PRIMESUM.py

#Given an even number ( greater than 2 ), return two prime numbers whose sum will be equal to given number.
def primesum(n):
        for i in xrange(2, n):
            if is_prime(i) and is_prime(n - i):
                return i, n - i

def is_prime(n):
    if n < 2:
      return False

    for i in xrange(2, int(n**0.5) + 1):
      if n % i == 0:
        return False
    return True