My answer to question 7

I actually like my solution to question 7 more than the one provided as it is using list characteristics in an elegant way:

num = 20 # number of fibonacci numbers required
fib = [0, 1] # first two gibonacci numbers
for i in range(3, num+1):
    fib.append(fib[-1]+fib[-2]) # it is always the sum of the last two
print(fib)