Project Euler: Problem 2

Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 0 and 1, the first 12 terms will be:

0, 1, 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.



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"""http://codereview.stackexchange.com/questions/9830/python-solution-for-project-euler-2-fibonacci-sums
Collaborated with Aaron Wong

Used this thread as a starting point for this code. 
"""
#Creating a function Fib that takes the parameter "limit" which is the largest number you want
def Fib(limit):
    #The first two numbers in the Fib sequence and a list to hold the whole sequence
    a = 0
    b = 1
    answer = []
    #Loop through b while it is less than the user defined limit
    while b < limit-1:
        #This creates the Fibonacci sequence as it adds the previous two numbers and then shifts the numbers over one
        holder = a
        a = b
        b+=holder
        #Determines if the number is even and if it should be added to the list
        if b % 2 == 0:
            answer.append(b)
    #Sums the list of even numbers
    print(sum(answer))
Fib(4000000)



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# This cell will be used for grading, leave it at the end of the notebook.



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  File "<ipython-input-74-ed1520714418>", line 11
    total += temp
                 ^
IndentationError: unindent does not match any outer indentation level



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