Even Fibonacci numbers: Python Code

Even Fibonacci numbers

Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be:

1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ...

By considering the terms in the Fibonacci sequence whose values do not exceed four million, find the sum of the even-valued terms.

Euler Project Problem 2

Python Code

def sumEvenFiboNumbers():
    a = 1
    b = 2
    nextSum = 0
    totalSum = 2
    while True:
        nextSum = a+b
        a = b
        b = nextSum
        if nextSum <= 4000000:
            if nextSum%2 == 0:
                totalSum = totalSum+nextSum
        else:
            break
    print "Sum of even fibo terms less than 4 million is:"totalSum       
sumEvenFiboNumbers()