How to find the nearest Fibonacci Series number?

Question

My next step is if the input is not in the Fibonacci Series, the program has to give an output with a number which is in the series that is nearest to the input. I do not kn

Answer 1

You could zip fibs with itself:

n = int(input("please, enter a number: "))
for fib, next_fib in itertools.izip(fibs(), itertools.islice(fibs(), 1, None)):
    if n == fib:
        print("Yes! Your number is a Fibonacci number!")
        break
    if next_fib > n:
        closest = fib if n - fib < next_fib - n else next_fib
        print("The closest Fibonacci number is {}".format(closest))
        break

You could use itertools.tee to optimize it a bit.